Majid Arabgol

Majid Arabgol

Purdue University

H-index: 208

North America-United States

Majid Arabgol Information

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Purdue University

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Citations(all)

241967

Citations(since 2020)

95764

Cited By

192410

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208

hIndex(since 2020)

137

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1265

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Top articles of Majid Arabgol

Muon Tomography for Reverification of Spent Fuel Casks (the MUTOMCA Project)

Authors

Germano Bonomi,Paolo Andreetto,Massimo Benettoni,Nicola Bez,Lorenzo Castellani,Paolo Checchia,Enrico Conti,Franco Gonella,Altea Lorenzon,Fabio Montecassiano,Gianni Zumerle,Matteo Turcato,Markus Balling,Astrid Jussofie,Julia Niedermeier,Katharina Aymanns,Irmgard Niemeyer,Juha Pekkarinen,Johan Dackner,Marita Mosconi,Mentor Murtezi

Journal

Journal of Advanced Instrumentation in Science

Published Date

2024/3/7

The MUTOMCA (MUon TOMography for shielding CAsks) project investigates the suitability of muon tomography for the reverification of spent fuel casks. Spent fuel casks are stored, for decades, in dedicated locations and are under constant surveillance by international agencies through unattended monitoring equipment. In the hypothetical case that these instruments would temporarily fail, thus leading to a loss of Continuity of Knowledge (CoK), a reverification of the spent fuel enclosed in self-shielding casks would be required. The reverification is particularly challenging for conventional nondestructive assay (NDA) methods since thick-walled spent fuel casks considerably attenuate the radiation emitted by the spent fuel. On the other hand, inspectorates need a high degree of assurance on the amounts of nuclear material stored in those casks. With the aim of proving the ability of muon tomography to detect a diversion of fuel assemblies in closed spent fuel casks, an experimental apparatus was designed, developed, constructed, and commissioned. The detectors were used during the first months of 2023, in a field trial at a dry storage facility in Germany to examine CASTOR® V/19 casks. Preliminary results are presented along with the potentials and drawbacks of the experimental apparatus.

Search for long-lived heavy neutral leptons decaying in the CMS muon detectors in proton-proton collisions at = 13 TeV

Authors

Aram Hayrapetyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,Ang Li,Dietrich Liko,Ivan Mikulec,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Mangesh Sonawane,Sebastian Templ,Wolfgang Waltenberger,Claudia-Elisabeth Wulz,Mohamed Rashad Darwish,Tahys Janssen,Pierre van Mechelen,Emil Sørensen Bols,Jorgen d'Hondt,Soumya Dansana,Alexandre de Moor,Martin Delcourt,Hesham El Faham,Steven Lowette,Inna Makarenko,Denise Müller,Abanti Ranadhir Sahasransu,Stefaan Tavernier,Michael Tytgat,Senne van Putte,David Vannerom,Barbara Clerbaux,Gilles de Lentdecker,Laurent Favart,Dmytro Hohov,Johny Jaramillo,Ali Khalilzadeh,Kyeongpil Lee,Mostafa Mahdavikhorrami,Andrea Malara,Santiago Paredes,Laurent Pétré,Nicolas Postiau,Laurent Thomas,Max Vanden Bemden,Pascal Vanlaer,Maarten de Coen,Didar Dobur,Yanwen Hong,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,César Rendón,Amrutha Samalan,Kirill Skovpen,Niels van den Bossche,Liam Wezenbeek,Anna Benecke,Giacomo Bruno,Claudio Caputo,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Khawla Jaffel,Sandhya Jain,Vincent Lemaitre,Jindrich Lidrych,Paola Mastrapasqua,Kuntal Mondal,Tu Thong Tran,Sébastien Wertz,Gilvan Alves,Eduardo Coelho,Carsten Hensel,Thales Menezes de Oliveira,Arthur Moraes,Patricia Rebello Teles,Mariana Soeiro,Walter Luiz Aldá Júnior,Miguel Alves Gallo Pereira,Mapse Barroso Ferreira Filho,Helena Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eliza Melo da Costa,Gustavo Gil da Silveira,Dilson de Jesus Damiao,Sandro Fonseca de Souza,Jordan Martins,Clemencia Mora Herrera,Kevin Mota Amarilo,Luiz Mundim,Helio Nogima,Alberto Santoro,Andre Sznajder,Mauricio Thiel,Antonio Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,Thiago Tomei,Eduardo de Moraes Gregores,Pedro G Mercadante,Sergio F Novaes,Breno Orzari,Sandra Padula,Aleksandar Aleksandrov,Georgy Antchev,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Elton Shumka,Sumit Keshri,Shalini Thakur,Tongguang Cheng,Qianying Guo,Tahir Javaid,Li Yuan,Zhen Hu,Jinfeng Liu,Kai Yi,Guo-Ming Chen,He-Sheng Chen,Mingshui Chen,Fabio Iemmi,Chun-Hua Jiang,Anshul Kapoor,Hongbo Liao,Zhenan Liu,Ramkrishna Sharma,Jia-Ning Song,Junquan Tao,Chu Wang,Jin Wang,Zebing Wang,Huaqiao Zhang,Antonis Agapitos

Published Date

2024/3/5

A search for heavy neutral leptons (HNLs) decaying in the CMS muon system is presented. A data sample is used corresponding to an integrated luminosity of 138 fb of proton-proton collisions at = 13 TeV, recorded at the CERN LHC in 2016-2018. Decay products of long-lived HNLs could interact with the shielding materials in the CMS muon system and create hadronic and electromagnetic showers detected in the muon chambers. This distinctive signature provides a unique handle to search for HNLs with masses below 4 GeV and proper decay lengths of the order of meters. The signature is sensitive to HNL couplings to all three generations of leptons. Candidate events are required to contain a prompt electron or muon originating from a vertex on the beam axis and a displaced shower in the muon chambers. No significant deviations from the standard model background expectation are observed. In the electron (muon) channel, the most stringent limits to date are set for HNLs in the mass range of 2.1-3.0 (1.9-3.3) GeV, reaching mixing matrix element squared values as low as 8.6 (4.6) 10.

Search for a charged Higgs boson decaying into a heavy neutral Higgs boson and a W boson in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Priya Sajid Hussain,Manfred Jeitler,N Krammer,L Lechner,D Liko,I Mikulec,P Paulitsch,FM Pitters,J Schieck,R Schöfbeck,D Schwarz,S Templ,W Waltenberger,C-E Wulz,MR Darwish,Tahys Janssen,T Kello,H Rejeb Sfar,P Van Mechelen,ES Bols,J D’hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,B Clerbaux,G De Lentdecker,L Favart,D Hohov,J Jaramillo,K Lee,M Mahdavikhorrami,I Makarenko,A Malara,S Paredes,L Pétré,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Rendón,C Roskas,A Samalan,K Skovpen,M Tytgat,N Van Den Bossche,B Vermassen,L Wezenbeek,A Benecke,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,TT Tran,P Vischia,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,E Shumka,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,Z Hu,S Lezki,K Yi,GM Chen,HS Chen,M Chen,F Iemmi,CH Jiang

Journal

Journal of High Energy Physics

Published Date

2023/9

A search for a charged Higgs boson H±decaying into a heavy neutral Higgs boson H and a W boson is presented. The analysis targets the H decay into a pair of tau leptons with at least one of them decaying hadronically and with an additional electron or muon present in the event. The search is based on proton-proton collision data recorded by the CMS experiment during 2016–2018 at= 13 TeV, corresponding to an integrated luminosity of 138 fb− 1. The data are consistent with standard model background expectations. Upper limits at 95% confidence level are set on the product of the cross section and branching fraction for an H±in the mass range of 300–700 GeV, assuming an H with a mass of 200 GeV. The observed limits range from 0.085 pb for an H±mass of 300 Ge V to 0.019 pb for a mass of 700 GeV. These are the first limits on H±production in the H±→ HW±decay channel at the LHC.

Search for Higgs boson pairs decaying to WW*WW*, WW*ττ, and ττττ in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Eddi A De Wolf,Tahys Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,Pierre Van Mechelen,ES Bols,J D’Hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Clerbaux,G De Lentdecker,L Favart,J Jaramillo,K Lee,M Mahdavikhorrami,I Makarenko,A Malara,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,Pascal Vanlaer,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,César Rendón,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Niels Van den Bossche,Basile Vermassen,Liam Wezenbeek,Anna Benecke,Agni Bethani,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Khawla Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,TT Tran,P Vischia,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,Kevin Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,Peicho Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,Z Hu,K Yi,GM Chen,HS Chen,M Chen,F Iemmi

Journal

Journal of High Energy Physics

Published Date

2023/7

The results of a search for Higgs boson pair (HH) production in the WW* WW*, WW* ττ, and ττττ decay modes are presented. The search uses 138 fb− 1 of proton-proton collision data recorded by the CMS experiment at the LHC at a center-of-mass energy of 13 TeV from 2016 to 2018. Analyzed events contain two, three, or four reconstructed leptons, including electrons, muons, and hadronically decaying tau leptons. No evidence for a signal is found in the data. Upper limits are set on the cross section for nonresonant HH production, as well as resonant production in which a new heavy particle decays to a pair of Higgs bosons. For nonresonant production, the observed (expected) upper limit on the cross section at 95% confidence level (CL) is 21.3 (19.4) times the standard model (SM) prediction. The observed (expected) ratio of the trilinear Higgs boson self-coupling to its value in the SM is constrained to be within …

Search for direct pair production of supersymmetric partners of τ leptons in the final state with two hadronically decaying τ leptons and missing transverse momentum in proton …

Authors

CMS Collaboration cms-publication-committee-chair@ cern. ch,AM Sirunyan,A Tumasyan,W Adam,F Ambrogi,T Bergauer,J Brandstetter,M Dragicevic,J Erö,A Escalante Del Valle,M Flechl,R Frühwirth,M Jeitler,N Krammer,I Krätschmer,D Liko,T Madlener,I Mikulec,N Rad,J Schieck,R Schöfbeck,M Spanring,D Spitzbart,W Waltenberger,C-E Wulz,M Zarucki,V Drugakov,V Mossolov,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,N Van Remortel,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,L Moreels,Q Python,K Skovpen,S Tavernier,W Van Doninck,P Van Mulders,I Van Parijs,D Beghin,B Bilin,H Brun,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,L Favart,A Grebenyuk,AK Kalsi,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,T Cornelis,D Dobur,I Khvastunov,M Niedziela,C Roskas,D Trocino,M Tytgat,W Verbeke,B Vermassen,M Vit,N Zaganidis,O Bondu,G Bruno,C Caputo,P David,C Delaere,M Delcourt,A Giammanco,V Lemaitre,A Magitteri,J Prisciandaro,A Saggio,M Vidal Marono,P Vischia,J Zobec,FL Alves,GA Alves,G Correia Silva,C Hensel,A Moraes,P Rebello Teles,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,LM Huertas Guativa,H Malbouisson,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,WL Prado Da Silva,LJ Sanchez Rosas,A Santoro,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,SandraS Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,A Marinov,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov

Journal

The European Physical Journal C

Published Date

2020/3

A search is presented for slepton pairs produced in proton–proton collisions at a center-of-mass energy of 13. The search is carried out in events containing two leptons in the final state, on the assumption that each slepton decays primarily to a lepton and a neutralino. Events are considered in which each lepton decays to one or more hadrons and a neutrino, or in which one of the leptons decays instead to an electron or a muon and two neutrinos. The data, collected with the CMS detector in 2016 and 2017, correspond to an integrated luminosity of 77.2. The observed data are consistent with the standard model background expectation. The results are used to set 95% confidence level upper limits on the cross section for slepton pair production in various models for slepton masses between 90 and 200 and neutralino masses of 1, 10, and 20. In the case of purely left-handed slepton production and …

Search for nonresonant Higgs boson pair production in the four leptons plus twob jets final state in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Tahys Janssen,Tomas Kello,H Rejeb Sfar,Pierre Van Mechelen,Emil Sørensen Bols,Jorgen d'Hondt,Alexandre De Moor,Martin Delcourt,Hesham El Faham,Steven Lowette,Seth Moortgat,Alexander Morton,Denise Müller,Abanti Ranadhir Sahasransu,Stefaan Tavernier,Walter Van Doninck,David Vannerom,Barbara Clerbaux,Gilles De Lentdecker,Laurent Favart,Johny Jaramillo,Kyeongpil Lee,Mostafa Mahdavikhorrami,Inna Makarenko,Andrea Malara,Santiago Paredes,Laurent Pétré,Nicolas Postiau,Elizabeth Starling,Laurent Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Rendón,C Roskas,A Samalan,K Skovpen,M Tytgat,N Van Den Bossche,B Vermassen,L Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,TT Tran,P Vischia,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,E Shumka,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,Z Hu,S Lezki,K Yi,GM Chen,HS Chen,M Chen,F Iemmi,CH Jiang

Journal

Physics Letters B

Published Date

2023/7/10

A search for the nonresonant production of Higgs boson pairs (HH) via gluon-gluon and vector boson fusion processes in final states with two bottom quarks and two tau leptons is presented. The search uses data from proton-proton collisions at a center-of-mass energy of s= 13 TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 138 fb− 1. Events in which at least one tau lepton decays hadronically are considered and multiple machine learning techniques are used to identify and extract the signal. The data are found to be consistent, within uncertainties, with the standard model (SM) predictions. Upper limits on the HH production cross section are set to constrain the parameter space for anomalous Higgs boson couplings. The observed (expected) upper limit at 95% confidence level corresponds to 3.3 (5.2) times the SM prediction for the inclusive HH cross section and to …

Measurement of the mass dependence of the transverse momentum of lepton pairs in Drell–Yan production in proton–proton collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Eddi A De Wolf,Tahys Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,N Van Remortel,Freya Blekman,Emil Sørensen Bols,Jorgen D’Hondt,Martin Delcourt,H El Faham,Steven Lowette,Seth Moortgat,Alexander Morton,Denise Müller,Abanti Ranadhir Sahasransu,Stefaan Tavernier,W Van Doninck,P Van Mulders,Diego Beghin,Bugra Bilin,Barbara Clerbaux,Gilles De Lentdecker,Laurent Favart,Anastasia Grebenyuk,Amandeep Kaur Kalsi,Kyeongpil Lee,Mostafa Mahdavikhorrami,Inna Makarenko,Louis Moureaux,Laurent Pétré,Andrey Popov,Nicolas Postiau,Elizabeth Starling,Laurent Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,Vincent Lemaitre,Kuntal Mondal,Jessica Prisciandaro,Angela Taliercio,Maksym Teklishyn,Tu Thong Tran,Pietro Vischia,Sébastien Wertz,GA Alves,Carsten Hensel,Arthur Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eliza Melo Da Costa,Gustavo Gil Da Silveira,Dilson de Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,Luiz Mundim,Helio Nogima,P Rebello Teles,Alberto Santoro,SM Silva Do Amaral,Andre Sznajder,Mauricio Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,Pedro G Mercadante,Sergio F Novaes,Sandra S Padula,Aleksandar Aleksandrov,Georgy Antchev,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mircho Rodozov,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Todor Ivanov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Tongguang Cheng,Qianying Guo,Tahir Javaid,Monika Mittal,Hanwen Wang,L Yuan,Muhammad Ahmad,Gerry Bauer,Candan Dozen

Journal

The European Physical Journal C

Published Date

2023/7/17

The double differential cross sections of the Drell–Yan lepton pair (, dielectron or dimuon) production are measured as functions of the invariant mass , transverse momentum , and . The observable, derived from angular measurements of the leptons and highly correlated with , is used to probe the low- region in a complementary way. Dilepton masses up to 1 are investigated. Additionally, a measurement is performed requiring at least one jet in the final state. To benefit from partial cancellation of the systematic uncertainty, the ratios of the differential cross sections for various ranges to those in the Z mass peak interval are presented. The collected data correspond to an integrated luminosity of 36.3 of proton–proton collisions recorded with the CMS detector at the LHC at a centre-of-mass energy of 13. Measurements are compared with predictions based on perturbative …

Measurement of the top quark mass using a profile likelihood approach with the lepton + jets final states in proton–proton collisions at

Authors

Armen Tumasyan,W Adam,JW Andrejkovic,T Bergauer,S Chatterjee,K Damanakis,M Dragicevic,A Escalante Del Valle,PS Hussain,M Jeitler,N Krammer,L Lechner,D Liko,I Mikulec,P Paulitsch,FM Pitters,J Schieck,R Schöfbeck,D Schwarz,M Sonawane,S Templ,W Waltenberger,C-E Wulz,MR Darwish,T Janssen,T Kello,H Rejeb Sfar,P Van Mechelen,ES Bols,J D’hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,B Clerbaux,G De Lentdecker,L Favart,D Hohov,J Jaramillo,K Lee,M Mahdavikhorrami,I Makarenko,A Malara,S Paredes,L Pétré,N Postiau,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Dobur,J Knolle,L Lambrecht,G Mestdach,C Rendón,A Samalan,K Skovpen,M Tytgat,N Van Den Bossche,B Vermassen,L Wezenbeek,A Benecke,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,A Taliercio,TT Tran,P Vischia,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,E Shumka,S Thakur,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,Z Hu,S Lezki,K Yi,GM Chen,HS Chen,M Chen,F Iemmi,CH Jiang,A Kapoor,H Liao,Z-A Liu

Journal

The European Physical Journal C

Published Date

2023/10/25

The mass of the top quark is measured in 36.3 of LHC proton–proton collision data collected with the CMS detector at . The measurement uses a sample of top quark pair candidate events containing one isolated electron or muon and at least four jets in the final state. For each event, the mass is reconstructed from a kinematic fit of the decay products to a top quark pair hypothesis. A profile likelihood method is applied using up to four observables per event to extract the top quark mass. The top quark mass is measured to be . This approach significantly improves the precision over previous measurements.

Search for Higgs boson decays to a Z boson and a photon in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Eddi A De Wolf,Tahys Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,Pierre Van Mechelen,Senne Van Putte,ES Bols,J D’Hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,Pascal Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,César Rendón,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Niels Van Den Bossche,A Vermassen,L Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu

Journal

Journal of high energy physics

Published Date

2023/5

Results are presented from a search for the Higgs boson decay H→ Zγ, where Z→ ℓ+ ℓ− with ℓ= e or μ. The search is performed using a sample of proton-proton (pp) collision data at a center-of-mass energy of 13 TeV, recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 138 fb− 1. Events are assigned to mutually exclusive categories, which exploit differences in both event topology and kinematics of distinct Higgs production mechanisms to enhance signal sensitivity. The signal strength μ, defined as the product of the cross section and the branching fraction\(\left [\sigma\left (\textrm {pp}\to\textrm {H}\right)\mathcal {B}\left (\textrm {H}\to\textrm {Z}\upgamma\right)\right]\) relative to the standard model prediction, is extracted from a simultaneous fit to the ℓ+ ℓ− γ invariant mass distributions in all categories and is measured to be μ= 2. 4±0. 9 for a Higgs boson mass of 125.38 GeV. The …

CMS pythia  8 colour reconnection tunes based on underlying-event data

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Eddi A De Wolf,Tahys Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,N Van Remortel,Emil Sørensen Bols,Jorgen D’Hondt,Martin Delcourt,H El Faham,Steven Lowette,Seth Moortgat,Alexander Morton,Denise Müller,Abanti Ranadhir Sahasransu,Stefaan Tavernier,W Van Doninck,David Vannerom,Diego Beghin,Bugra Bilin,Barbara Clerbaux,Gilles De Lentdecker,Laurent Favart,Amandeep Kaur Kalsi,Kyeongpil Lee,Mostafa Mahdavikhorrami,Inna Makarenko,Louis Moureaux,Santiago Paredes,Laurent Pétré,Andrey Popov,Nicolas Postiau,Elizabeth Starling,Laurent Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Rendón,C Roskas,A Samalan,K Skovpen,M Tytgat,Basile Vermassen,Liam Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

The European Physical Journal C

Published Date

2023/7/10

New sets of parameter tunes for two of the colour reconnection models, quantum chromodynamics-inspired and gluon-move, implemented in the pythia  8 event generator, are obtained based on the default CMS pythia  8 underlying-event tune, CP5. Measurements sensitive to the underlying event performed by the CMS experiment at centre-of-mass energies and 13, and by the CDF experiment at 1.96 are used to constrain the parameters of colour reconnection models and multiple-parton interactions simultaneously. The new colour reconnection tunes are compared with various measurements at 1.96, 7, 8, and 13 including measurements of the underlying-event, strange-particle multiplicities, jet substructure observables, jet shapes, and colour flow in top quark pair () events. The new tunes are also used to estimate the uncertainty related to colour reconnection modelling in the top quark mass …

Search for supersymmetry in final states with a single electron or muon using angular correlations and heavy-object identification in proton-proton collisions at $$\sqrt {s …

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Tahys Janssen,Tomas Kello,H Rejeb Sfar,Pierre Van Mechelen,Emil Sørensen Bols,Jorgen D’Hondt,Alexandre De Moor,Martin Delcourt,Hesham El Faham,Steven Lowette,Seth Moortgat,Alexander Morton,Denise Müller,Abanti Ranadhir Sahasransu,Stefaan Tavernier,Walter Van Doninck,David Vannerom,Barbara Clerbaux,Gilles De Lentdecker,Laurent Favart,Dmytro Hohov,Johny Jaramillo,Kyeongpil Lee,Mostafa Mahdavikhorrami,Inna Makarenko,Andrea Malara,Santiago Paredes,Laurent Pétré,Nicolas Postiau,Elizabeth Starling,Laurent Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Rendón,C Roskas,A Samalan,K Skovpen,M Tytgat,N Van Den Bossche,B Vermassen,L Wezenbeek,A Benecke,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,Vincent Lemaitre,Kuntal Mondal,Jessica Prisciandaro,Angela Taliercio,Tu Thong Tran,Pietro Vischia,Sébastien Wertz,GA Alves,Eduardo Coelho,Carsten Hensel,Arthur Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eliza Melo Da Costa,Gustavo Gil Da Silveira,Dilson de Jesus Damiao,Vitor Dos Santos Sousa,S Fonseca De Souza,Jordan Martins,C Mora Herrera,K Mota Amarilo,Luiz Mundim,Helio Nogima,Alberto Santoro,SM Silva Do Amaral,Andre Sznajder,Mauricio Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,TR Fernandez Perez Tomei,EM Gregores,Pedro G Mercadante,Sergio F Novaes,Sandra S Padula,Aleksandar Aleksandrov,Georgy Antchev,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mircho Rodozov,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Todor Ivanov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Elton Shumka,Shalini Thakur,Tongguang Cheng,Tahir Javaid,Monika Mittal,Li Yuan,Muhammad Ahmad,Gerry Bauer,Zhen Hu,Samet Lezki,Kai Yi,Guo-Ming Chen,He-Sheng Chen,Mingshui Chen,Fabio Iemmi

Journal

Journal of High Energy Physics

Published Date

2023/9

A search for supersymmetry is presented in events with a single charged lepton, electron or muon, and multiple hadronic jets. The data correspond to an integrated luminosity of 138 fb− 1 of proton-proton collisions at a center-of-mass energy of 13 TeV, recorded by the CMS experiment at the CERN LHC. The search targets gluino pair production, where the gluinos decay into final states with the lightest supersymmetric particle (LSP) and either a top quark-antiquark () pair, or a light-flavor quark-antiquark () pair and a virtual or on-shell W boson. The main backgrounds, pair and W+ jets production, are suppressed by requirements on the azimuthal angle between the momenta of the lepton and of its reconstructed parent W boson candidate, and by top quark and W boson identification based on a machine-learning technique. The number of observed events is consistent with the expectations from standard model …

Search for Higgs boson decays into Z and J/ψ and for Higgs and Z boson decays into J/ψ or Y pairs in pp collisions at s= 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Eddi A De Wolf,Tahys Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,Pierre Van Mechelen,Senne Van Putte,ES Bols,J D'Hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Clerbaux,G De Lentdecker,L Favart,K Lee,M Mahdavikhorrami,I Makarenko,A Malara,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,Pascal Vanlaer,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,César Rendón,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Niels Van den Bossche,Basile Vermassen,Liam Wezenbeek,Anna Benecke,Agni Bethani,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Khawla Jaffel,Sa Jain,Vincent Lemaitre,Kuntal Mondal,Jessica Prisciandaro,Angela Taliercio,Tu Thong Tran,Pietro Vischia,Sébastien Wertz,GA Alves,Carsten Hensel,Arthur Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eliza Melo Da Costa,Gustavo Gil Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,Jordan Martins,C Mora Herrera,K Mota Amarilo,Luiz Mundim,Helio Nogima,Alberto Santoro,SM Silva Do Amaral,Andre Sznajder,Mauricio Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,TR Fernandez Perez Tomei,EM Gregores,Pedro G Mercadante,Sergio F Novaes,Sandra S Padula,Aleksandar Aleksandrov,Georgy Antchev,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mircho Rodozov,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Todor Ivanov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Tongguang Cheng,Tahir Javaid,Monika Mittal,Li Yuan,Muhammad Ahmad,Gerry Bauer,Candan Dozen,Zhen Hu,Yi Wang,Kai Yi,Emilien Chapon,Guo-Ming Chen

Journal

Physics Letters B

Published Date

2023/7/10

Decays of the Higgs boson into a Image 1 boson and a Image 2 or Image 3 meson are searched for in four-lepton final states with the CMS detector at the LHC. A data set of proton-proton collisions corresponding to an integrated luminosity of 138 fb− 1 is used. Using the same data set, decays of the Higgs and Image 1 boson into quarkonium pairs are also searched for. An observation of such decays with this sample would indicate the presence of physics beyond the standard model. No evidence for these decays has been observed and upper limits at the 95% confidence level are placed on the corresponding branching fractions (B). Assuming longitudinal polarization of the Higgs boson decay products, 95% confidence level observed upper limits for Image 4 and Image 5 are 1.9× 10− 3 and 6.6× 10− 3, respectively.

Search for a vector-like quark T′ → tH via the diphoton decay mode of the Higgs boson in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,S Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Priya Sajid Hussain,Manfred Jeitler,N Krammer,L Lechner,D Liko,I Mikulec,P Paulitsch,FM Pitters,J Schieck,R Schöfbeck,D Schwarz,M Sonawane,S Templ,W Waltenberger,C-E Wulz,MR Darwish,T Janssen,T Kello,H Rejeb Sfar,P Van Mechelen,ES Bols,J D’hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,B Clerbaux,G De Lentdecker,L Favart,D Hohov,J Jaramillo,K Lee,M Mahdavikhorrami,I Makarenko,A Malara,S Paredes,L Pétré,N Postiau,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Dobur,J Knolle,L Lambrecht,G Mestdach,Cesar Rendón,A Samalan,K Skovpen,M Tytgat,N Van Den Bossche,B Vermassen,L Wezenbeek,A Benecke,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,A Taliercio,TT Tran,P Vischia,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,E Shumka,S Thakur,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,Z Hu,S Lezki,K Yi,GM Chen,HS Chen,M Chen,F Iemmi,CH Jiang,A Kapoor,H Liao,Z-A Liu

Journal

Journal of High Energy Physics

Published Date

2023/9

A search for the electroweak production of a vector-like quark T′, decaying to a top quark and a Higgs boson is presented. The search is based on a sample of proton-proton collision events recorded at the LHC at= 13 TeV, corresponding to an integrated luminosity of 138 fb− 1. This is the first T′ search that exploits the Higgs boson decay to a pair of photons. For narrow isospin singlet T′ states with masses up to 1.1 TeV, the excellent diphoton invariant mass resolution of 1–2% results in an increased sensitivity compared to previous searches based on the same production mechanism. The electroweak production of a T′ quark with mass up to 960 GeV is excluded at 95% confidence level, assuming a coupling strength κ T= 0. 25 and a relative decay width Γ/M T′< 5%.

Measurements of the Higgs boson production cross section and couplings in the W boson pair decay channel in proton-proton collisions at $$\sqrt {s}= 13\,\text {Te\hspace …

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,J Schieck,R Schöfbeck,D Schwarz,S Templ,W Waltenberger,C-E Wulz,MR Darwish,Tahys Janssen,T Kello,H Rejeb Sfar,P Van Mechelen,ES Bols,J D’Hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,B Clerbaux,G De Lentdecker,L Favart,D Hohov,J Jaramillo,K Lee,M Mahdavikhorrami,I Makarenko,A Malara,S Paredes,L Pétré,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Rendón,C Roskas,A Samalan,K Skovpen,M Tytgat,N Van Den Bossche,B Vermassen,L Wezenbeek,A Benecke,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,TT Tran,P Vischia,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Tomei,EM Gregores,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,E Shumka,S Thakur,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,Z Hu,S Lezki,K Yi,GM Chen,HS Chen,M Chen,F Iemmi

Journal

The European Physical Journal C

Published Date

2023/7

Production cross sections of the standard model Higgs boson decaying to a pair of W bosons are measured in proton-proton collisions at a center-of-mass energy of 13\(\,\text {Te\hspace {-. 08em} V}\). The analysis targets Higgs bosons produced via gluon fusion, vector boson fusion, and in association with a W or Z boson. Candidate events are required to have at least two charged leptons and moderate missing transverse momentum, targeting events with at least one leptonically decaying W boson originating from the Higgs boson. Results are presented in the form of inclusive and differential cross sections in the simplified template cross section framework, as well as couplings of the Higgs boson to vector bosons and fermions. The data set collected by the CMS detector during 2016–2018 is used, corresponding to an integrated luminosity of 138. The signal strength modifier, defined as the ratio of the …

Measurement of the Higgs boson width and evidence of its off-shell contributions to ZZ production

Journal

Nature Physics

Published Date

2022/11

Since the discovery of the Higgs boson in 2012, detailed studies of its properties have been ongoing. Besides its mass, its width—related to its lifetime—is an important parameter. One way to determine this quantity is to measure its off-shell production, where the Higgs boson mass is far away from its nominal value, and relating it to its on-shell production, where the mass is close to the nominal value. Here we report evidence for such off-shell contributions to the production cross-section of two Z bosons with data from the CMS experiment at the CERN Large Hadron Collider. We constrain the total rate of the off-shell Higgs boson contribution beyond the Z boson pair production threshold, relative to its standard model expectation, to the interval [0.0061, 2.0] at the 95% confidence level. The scenario with no off-shell contribution is excluded at a p-value of 0.0003 (3.6 standard deviations). We measure the width of the …

Search for Resonances Decaying to Three Bosons in Proton-Proton Collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Physical review letters

Published Date

2022/7/6

A search for resonances decaying into a W boson and a radion, where the radion decays into two W bosons, is presented. The data analyzed correspond to an integrated luminosity of 138 fb− 1 recorded in proton-proton collisions with the CMS detector at s= 13 TeV. One isolated charged lepton is required, together with missing transverse momentum and one or two massive large-radius jets, containing the decay products of either two or one W bosons, respectively. No excess over the background estimation is observed. The results are combined with those from a complementary channel with an all-hadronic final state, described in an accompanying paper. Limits are set on parameters of an extended warped extra-dimensional model. These searches are the first of their kind at the LHC.

Observation of B(2S)K and B(2S)K decays

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Vladimir Chekhovsky,Aliaksandr Litomin,Vladimir Makarenko,Mohamed Rashad Darwish,Eddi A De Wolf,Tahys Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,N Van Remortel,Emil Sørensen Bols,Jorgen D’Hondt,Alexandre De Moor,Martin Delcourt,H El Faham,Steven Lowette,Seth Moortgat,Alexander Morton,Denise Müller,Abanti Ranadhir Sahasransu,Stefaan Tavernier,W Van Doninck,David Vannerom,Diego Beghin,Bugra Bilin,Barbara Clerbaux,Gilles De Lentdecker,Laurent Favart,Amandeep Kaur Kalsi,Kyeongpil Lee,Mostafa Mahdavikhorrami,Inna Makarenko,Louis Moureaux,Santiago Paredes,Laurent Pétré,Andrey Popov,Nicolas Postiau,Elizabeth Starling,Laurent Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Rendon,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,L Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad

Journal

The European Physical Journal C

Published Date

2022/5/31

Using a data sample of proton-proton collisions collected by the CMS experiment at the LHC in 2017 and 2018 with an integrated luminosity of , the and decays are observed with significances exceeding 5 standard deviations. The resulting branching fraction ratios, measured for the first time, correspond to B(Bs0→ψ(2S)KS0)/B(B0→ψ(2S)KS0)=(3.33±0.69(stat)±0.11(syst)±0.34(fs/fd))×10-2 and B(B0→ψ(2S)KS0π+π-)/B(B0→ψ(2S)KS0)=0.480±0.013(stat)±0.032(syst), where the last uncertainty in the first ratio is related to the uncertainty in the ratio of production cross sections of and mesons, .

Search for flavor-changing neutral current interactions of the top quark and the Higgs boson decaying to a bottom quark-antiquark pair at = 13 TeV

Authors

Aram Hayrapetyan

Published Date

2023/12/11

A search for the production of a top quark in association with a photon and additional jets via flavor changing neutral current interactions is presented. The analysis uses proton-proton collision data recorded by the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 138 fb. The search is performed by looking for processes where a single top quark is produced in association with a photon, or a pair of top quarks where one of the top quarks decays into a photon and an up or charm quark. Events with an electron or a muon, a photon, one or more jets, and missing transverse momentum are selected. Multivariate analysis techniques are used to discriminate signal and standard model background processes. No significant deviation is observed over the predicted background. Observed (expected) upper limits are set on the branching fractions of top quark decays: (tu) 0.9510 (1.2010) and (tc) 1.5110 (1.5410) at 95% confidence level, assuming a single nonzero coupling at a time. The obtained limit for (tu) is similar to the current best limit, while the limit for (tc) is significantly tighter than previous results.

Study of quark and gluon jet substructure in Z+ jet and dijet events from pp collisions

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer

Journal

Journal of High Energy Physics

Published Date

2022/1

Measurements of jet substructure describing the composition of quark-and gluon-initiated jets are presented. Proton-proton (pp) collision data at= 13 TeV collected with the CMS detector are used, corresponding to an integrated luminosity of 35.9 fb− 1. Generalized angularities are measured that characterize the jet substructure and distinguish quark-and gluon-initiated jets. These observables are sensitive to the distributions of transverse momenta and angular distances within a jet. The analysis is performed using a data sample of dijet events enriched in gluon-initiated jets, and, for the first time, a Z+ jet event sample enriched in quark-initiated jets. The observables are measured in bins of jet transverse momentum, and as a function of the jet radius parameter. Each measurement is repeated applying a “soft drop” grooming procedure that removes soft and large angle radiation from the jet. Using these …

Inclusive nonresonant multilepton probes of new phenomena at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Cesar Rendon,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Liam Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu

Journal

Physical Review D

Published Date

2022/6/14

An inclusive search for nonresonant signatures of beyond the standard model (SM) phenomena in events with three or more charged leptons, including hadronically decaying τ leptons, is presented. The analysis is based on a data sample corresponding to an integrated luminosity of 138 fb− 1 of proton-proton collisions at s= 13 TeV, collected by the CMS experiment at the LHC in 2016–2018. Events are categorized based on the lepton and b-tagged jet multiplicities and various kinematic variables. Three scenarios of physics beyond the SM are probed, and signal-specific boosted decision trees are used for enhancing sensitivity. No significant deviations from the background expectations are observed. Lower limits are set at 95% confidence level on the mass of type-III seesaw heavy fermions in the range 845–1065 GeV for various decay branching fraction combinations to SM leptons. Doublet and singlet …

Identification of hadronic tau lepton decays using a deep neural network

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2201.08458

Published Date

2022/1/20

A new algorithm is presented to discriminate reconstructed hadronic decays of tau leptons () that originate from genuine tau leptons in the CMS detector against candidates that originate from quark or gluon jets, electrons, or muons. The algorithm inputs information from all reconstructed particles in the vicinity of a candidate and employs a deep neural network with convolutional layers to efficiently process the inputs. This algorithm leads to a significantly improved performance compared with the previously used one. For example, the efficiency for a genuine to pass the discriminator against jets increases by 10-30% for a given efficiency for quark and gluon jets. Furthermore, a more efficient reconstruction is introduced that incorporates additional hadronic decay modes. The superior performance of the new algorithm to discriminate against jets, electrons, and muons and the improved reconstruction method are validated with LHC proton-proton collision data at 13 TeV.

A new calibration method for charm jet identification validated with proton-proton collision events at√ s= 13 TeV

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2111.03027

Published Date

2021/11/4

Many measurements at the LHC require efficient identification of heavy-flavour jets, i.e. jets originating from bottom (b) or charm (c) quarks. An overview of the algorithms used to identify c jets is described and a novel method to calibrate them is presented. This new method adjusts the entire distributions of the outputs obtained when the algorithms are applied to jets of different flavours. It is based on an iterative approach exploiting three distinct control regions that are enriched with either b jets, c jets, or light-flavour and gluon jets. Results are presented in the form of correction factors evaluated using proton-proton collision data with an integrated luminosity of 41.5 fb at = 13 TeV, collected by the CMS experiment in 2017. The closure of the method is tested by applying the measured correction factors on simulated data sets and checking the agreement between the adjusted simulation and collision data. Furthermore, a validation is performed by testing the method on pseudodata, which emulate different miscalibration conditions. The calibrated results enable the use of the full distributions of heavy-flavour identification algorithm outputs, e.g. as inputs to machine-learning models. Thus, they are expected to increase the sensitivity of future physics analyses.

Search for strongly interacting massive particles generating trackless jets in proton–proton collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,Vladimir Chekhovsky,Aliaksandr Litomin,Vladimir Makarenko,J Suarez Gonzalez,Mohamed Rashad Darwish,Eddi A De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,N Van Remortel,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,Petra Van Mulders,Diego Beghin,Bugra Bilin,Barbara Clerbaux,Gilles De Lentdecker,Brian Dorney,Laurent Favart,Anastasia Grebenyuk,Amandeep Kaur Kalsi,Inna Makarenko,Louis Moureaux,Laurent Pétré,Andrey Popov,Nicolas Postiau,Elizabeth Starling,Laurent Thomas,C Vander Velde,Pascal Vanlaer,David Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Marek Gruchala,Illia Khvastunov,Marek Niedziela,Christos Roskas,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Martin Delcourt,Izzeddin Suat Donertas,Andrea Giammanco,Vincent Lemaitre,Kuntal Mondal,Jessica Prisciandaro,Angela Taliercio,Maksym Teklishyn,Pietro Vischia,Sébastien Wertz,Sophie Wuyckens,GA Alves,Carsten Hensel,Arthur Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eduardo Coelho,Eliza Melo Da Costa,Gustavo Gil Da Silveira,D De JesusDamiao,S Fonseca De Souza,Jordan Martins,D Matos Figueiredo,M Medina Jaime,C Mora Herrera,Luiz Mundim,Helio Nogima,P Rebello Teles,LJ Sanchez Rosas,Alberto Santoro,SM Silva Do Amaral,Andre Sznajder,Mauricio Thiel,F Torres Da SilvaDeAraujo,A Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,Pedro G Mercadante,Sergio F Novaes,Sandra S Padula,Aleksandar Aleksandrov,Georgy Antchev,Ivan Atanasov,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mircho Rodozov,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Todor Ivanov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Tongguang Cheng,Wenxing Fang,Qianying Guo

Journal

The European Physical Journal C

Published Date

2022/3

A search for dark matter in the form of strongly interacting massive particles (SIMPs) using the CMS detector at the LHC is presented. The SIMPs would be produced in pairs that manifest themselves as pairs of jets without tracks. The energy fraction of jets carried by charged particles is used as a key discriminator to suppress efficiently the large multijet background, and the remaining background is estimated directly from data. The search is performed using proton–proton collision data corresponding to an integrated luminosity of 16.1, collected with the CMS detector in 2016. No significant excess of events is observed above the expected background. For the simplified dark matter model under consideration, SIMPs with masses up to 100 are excluded and further sensitivity is explored towards higher masses.

Search for a right-handed W boson and a heavy neutrino in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,T Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,L Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins,Y Wang,K Yi

Journal

Journal of High Energy Physics

Published Date

2022/4

A search is presented for a right-handed W boson (W R) and a heavy neutrino (N), in a final state consisting of two same-flavor leptons (ee or μμ) and two quarks. The search is performed with the CMS experiment at the CERN LHC using a data sample of proton-proton collisions at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 138 fb− 1. The search covers two regions of phase space, one where the decay products of the heavy neutrino are merged into a single large-area jet, and one where the decay products are well separated. The expected signal is characterized by an excess in the invariant mass distribution of the final-state objects. No significant excess over the standard model background expectations is observed. The observations are interpreted as upper limits on the product of W R production cross sections and branching fractions assuming that couplings are identical to those of …

Search for a W′ boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state at = 13 TeV

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Ece Asilar,Thomas Bergauer,Johannes Brandstetter,Marko Dragicevic,Janos Erö,Alberto Escalante Del Valle,Martin Flechl,Rudolf Fruehwirth,Vasile Mihai Ghete,Josef Hrubec,Manfred Jeitler,Natascha Krammer,Ilse Krätschmer,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Navid Rad,Herbert Rohringer,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Daniel Spitzbart,Anton Taurok,Wolfgang Waltenberger,Johannes Wittmann,C-E Wulz,Mateusz Zarucki,EA De Wolf,D Di Croce,X Janssen,J Lauwers,M Pieters,H Van Haevermaet,P Van Mechelen,S Abu Zeid,F Blekman,J D’Hondt,J De Clercq,K Deroover,G Flouris,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,L Moreels,Q Python,K Skovpen,S Tavernier,W Van Doninck,P Van Mulders,I Van Parijs,D Beghin,B Bilin,H Brun,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,G Fasanella,L Favart,R Goldouzian,A Grebenyuk,AK Kalsi,T Lenzi,J Luetic,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,Q Wang,T Cornelis,D Dobur,A Fagot,M Gul,I Khvastunov,D Poyraz,C Roskas,D Trocino,M Tytgat,W Verbeke,B Vermassen,M Vit,N Zaganidis,H Bakhshiansohi,O Bondu,S Brochet,G Bruno,C Caputo,P David,C Delaere,M Delcourt,A Giammanco,G Krintiras,V Lemaitre,A Magitteri,K Piotrzkowski,A Saggio,M Vidal Marono,P Vischia,S Wertz,J Zobec,FL Alves,GA Alves,M Correa Martins Junior,G Correia Silva,C Hensel,A Moraes,ME Pol,P Rebello Teles,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,H Malbouisson,D Matos Figueiredo,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,WL Prado Da Silva,LJ Sanchez Rosas,A Santoro,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,S Ahuja,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,SandraS Padula,A Aleksandrov,R Hadjiiska,P Iaydjiev,Andrey Marinov

Journal

Journal of High Energy Physics

Published Date

2019/3

A search for a heavy W′ resonance decaying to one B or T vector-like quark and a top or bottom quark, respectively, is presented. The search uses proton-proton collision data collected in 2016 with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb− 1 at TeV. Both decay channels result in a final state with a top quark, a Higgs boson, and ab quark, each produced with significant energy. The all-hadronic decays of both the Higgs boson and the top quark are considered. The final-state jets, some of which correspond to merged decay products of a boosted top quark and a Higgs boson, are selected using jet substructure techniques, which help to suppress standard model backgrounds. AW′ boson signal would appear as a narrow peak in the invariant mass distribution of these jets. No significant deviation in data with respect to the standard model background predictions is …

Probing Charm Quark Dynamics via Multiparticle Correlations in Pb-Pb Collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,TT Tran,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan

Journal

Physical review letters

Published Date

2022/7/5

Multiparticle azimuthal correlations of prompt D 0 mesons are measured in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of s NN= 5.02 TeV. For the first time, a four-particle cumulant method is used to extract the second Fourier coefficient of the azimuthal distribution (v 2) of D 0 mesons as a function of event centrality and the D 0 transverse momentum. The ratios of the four-particle v 2 values to previously measured two-particle cumulant results provide direct experimental access to event-by-event fluctuations of charm quark azimuthal anisotropies. These ratios are also found to be comparable to those of inclusive charged particles in the event. However, hints of deviations are seen in the most central and peripheral collisions. To investigate the origin of flow fluctuations in the charm sector, these measurements are compared to a model implementing fluctuations of charm quark energy loss via …

A Monte Carlo muon generator for cosmic-ray muon applications

Authors

Germano Bonomi,Davide Pagano,Antonietta Donzella,Aldo Zenoni,Gianni Zumerle,Nicola Zurlo

Journal

Journal of Advanced Instrumentation in Science

Published Date

2022/5/13

Cosmic-ray radiation, thanks to its high penetration capability and relative abundance, has been successfully used in scientific research and civil applications for a long time. For example, techniques based on the attenuation of cosmic-ray muons (muon radiography) or on their angular scattering (muon tomography) have been used to study the inner structure of volcanoes, to search for hidden chambers in Egyptian pyramids, to inspect nuclear waste containers and to monitor blast furnaces. In addition to these imaging techniques, cosmic ray muons have also been used for the detector alignment in large experiments in nuclear and elementary particle physics, and, more recently, proposed for the alignment and stability monitoring of mechanical structures. Muon radiography applications are sensitive to the angular distribution of cosmic muons, and many applications of muon tomography are also sensitive to their momentum distribution. For these reasons, an accurate simulation of the dependency of the muon flux on momentum and direction is a key requirement for every generation tool targeting to such applications. Moreover, as the inspection of large structures requires a very large statistics, the generator has also to be fast. A new Monte Carlo generator of cosmic-ray muons, called EcoMug (Efficient COsmic MUon Generator) and specifically designed for muon radiography and tomography applications, is presented. It is a header-only C++ 11 library, based on a parametrization of experimental data. Unlike other tools, EcoMug gives the possibility of generating from different surfaces (plane, cylinder and half-sphere), while keeping the correct …

Measurement and QCD analysis of double-differential inclusive jet cross sections in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,J Schieck,R Schöfbeck,D Schwarz,S Templ,W Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Liam Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,Peicho Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins,Y Wang,K Yi

Journal

Journal of High Energy Physics

Published Date

2022/2

A measurement of the inclusive jet production in proton-proton collisions at the LHC at= 13 TeV is presented. The double-differential cross sections are measured as a function of the jet transverse momentum p T and the absolute jet rapidity| y|. The anti-k T clustering algorithm is used with distance parameter of 0.4 (0.7) in a phase space region with jet p T from 97 GeV up to 3.1 TeV and| y|< 2. 0. Data collected with the CMS detector are used, corresponding to an integrated luminosity of 36.3 fb− 1 (33.5 fb− 1). The measurement is used in a comprehensive QCD analysis at next-to-next-to-leading order, which results in significant improvement in the accuracy of the parton distributions in the proton. Simultaneously, the value of the strong coupling constant at the Z boson mass is extracted as α S (m Z)= 0. 1170±0. 0019. For the first time, these data are used in a standard model effective field theory analysis at next-to …

Evidence for X(3872) in Pb-Pb Collisions and Studies of its Prompt Production at

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Martin Flechl,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Ilse Krätschmer,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,Vladimir Drugakov,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,L Favart,A Grebenyuk,AK Kalsi,L Moureaux,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,Tom Cornelis,Didar Dobur,Illia Khvastunov,Marek Niedziela,Christos Roskas,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,G Bruno,C Caputo,P David,C Delaere,M Delcourt,A Giammanco,V Lemaitre,J Prisciandaro,A Saggio,P Vischia,J Zobec,GA Alves,G Correia Silva,C Hensel,A Moraes,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,H Malbouisson,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,WL Prado Da Silva,P Rebello Teles,LJ Sanchez Rosas,A Santoro,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,W Fang,X Gao,L Yuan,M Ahmad,Z Hu,Y Wang,GM Chen,HS Chen,M Chen,CH Jiang

Journal

Physical review letters

Published Date

2022/1/19

The first evidence for X (3872) production in relativistic heavy ion collisions is reported. The X (3872) production is studied in lead-lead (Pb-Pb) collisions at a center-of-mass energy of s NN= 5.02 TeV per nucleon pair, using the decay chain X (3872)→ J/ψ π+ π−→ μ+ μ− π+ π−. The data were recorded with the CMS detector in 2018 and correspond to an integrated luminosity of 1.7 nb− 1. The measurement is performed in the rapidity and transverse momentum ranges| y|< 1.6 and 15< p T< 50 GeV/c. The significance of the inclusive X (3872) signal is 4.2 standard deviations. The prompt X (3872) to ψ 2 S yield ratio is found to be ρ Pb− Pb= 1.08±0.49 (stat)±0.52 (syst), to be compared with typical values of 0.1 for p p collisions. This result provides a unique experimental input to theoretical models of the X (3872) production mechanism, and of the nature of this exotic state.

Analysis of the CP structure of the Yukawa coupling between the Higgs boson and τ leptons in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,M Vit,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

Journal of High Energy Physics

Published Date

2022/6

The first measurement of the CP structure of the Yukawa coupling between the Higgs boson and τ leptons is presented. The measurement is based on data collected in proton-proton collisions at= 13 TeV by the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb− 1. The analysis uses the angular correlation between the decay planes of τ leptons produced in Higgs boson decays. The effective mixing angle between CP-even and CP-odd τ Yukawa couplings is found to be− 1±19, compared to an expected value of 0±21 at the 68.3% confidence level. The data disfavour the pure CP-odd scenario at 3.0 standard deviations. The results are compatible with predictions for the standard model Higgs boson.

Search for Wγ resonances in proton-proton collisions at s= 13 TeV using hadronic decays of Lorentz-boosted W bosons

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D'Hondt,J De Clercq,M Delcourt,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,G Mestdach,M Niedziela,Christos Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

Physics Letters B

Published Date

2022/3/10

A search for W γ resonances in the mass range between 0.7 and 6.0 TeV is presented. The W boson is reconstructed via its hadronic decays, with the final-state products forming a single large-radius jet, owing to a high Lorentz boost of the W boson. The search is based on proton-proton collision data at s= 13 TeV, corresponding to an integrated luminosity of 137 fb− 1, collected with the CMS detector at the LHC in 2016–2018. The W γ mass spectrum is parameterized with a smoothly falling background function and examined for the presence of resonance-like signals. No significant excess above the predicted background is observed. Model-specific upper limits at 95% confidence level on the product of the cross section and branching fraction to the W γ channel are set. Limits for narrow resonances and for resonances with an intrinsic width equal to 5% of their mass, for spin-0 and spin-1 hypotheses, range …

Search for heavy resonances decaying to , , or boson pairs in a final state consisting of a lepton and a large-radius jet in proton-proton collisions at …

Authors

Armen Tumasyan,W Adam,JW Andrejkovic,T Bergauer,S Chatterjee,M Dragicevic,A Escalante Del Valle,R Frühwirth,M Jeitler,N Krammer,L Lechner,D Liko,I Mikulec,P Paulitsch,FM Pitters,J Schieck,R Schöfbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Physical Review D

Published Date

2022/2/25

A search for new heavy resonances decaying to pairs of bosons (W W, W Z, or W H) is presented. The analysis uses data from proton-proton collisions collected with the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 137 fb− 1. One of the bosons is required to be a W boson decaying to an electron or muon and a neutrino, while the other boson is required to be reconstructed as a single jet with mass and substructure compatible with a quark pair from a W, Z, or Higgs boson decay. The search is performed in the resonance mass range between 1.0 and 4.5 TeV and includes a specific search for resonances produced via vector boson fusion. The signal is extracted using a two-dimensional maximum likelihood fit to the jet mass and the diboson invariant mass distributions. No significant excess is observed above the estimated background. Model-independent upper …

Search for supersymmetry in final states with two or three soft leptons and missing transverse momentum in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Natascha Krammer,Sébastien Wertz,Bobae Kim,Dong Hee Kim,Gui Nyun Kim,Jiwoong Kim,Jeongeun Lee,Seh Wook Lee,Chang-Seong Moon,Young Do Oh,Sang Il Pak,Benjamin Charles Radburn-Smith,Gilvan Alves,Sezen Sekmen,Yu Chul Yang,Hyunchul Kim,Dong Ho Moon,Brieuc Francois,Tae Jeong Kim,Jiwon Park,Sungwoong Cho,Suyong Choi,Yeonju Go,Carsten Hensel,Byung-Sik Hong,Kisoo Lee,Kyong Sei Lee,Jaehoon Lim,Jaebeom Park,Sung Keun Park,Jaehyeok Yoo,Junghwan Goh,Atul Gurtu,Hyunsoo Kim,Arthur Moraes,Yongsun Kim,John Almond,Ji Hwan Bhyun,Junho Choi,Sihyun Jeon,Junho Kim,Jae Sung Kim,Sanghyun Ko,Hyejin Kwon,Haneol Lee,Walter Luiz Aldá Júnior,Sangeun Lee,Byung Hun Oh,Minseok Oh,Sung Bin Oh,Hyonsan Seo,Unki Yang,Inseok Yoon,Woojin Jang,Dajeong Jeon,Miguel Alves Gallo Pereira,Yechan Kang,Ji Hyun Kim,Seulgi Kim,Byeonghak Ko,Jason Sang Hun Lee,Yunjae Lee,Inkyu Park,Youn Roh,Min Sang Ryu,Donghyun Song,Mapse Barroso Ferreira Filho,IJ Watson,Seungjin Yang,Seungkyu Ha,Hwi Dong Yoo,Minuk Choi,Yongho Jeong,Heewon Lee,Yonghoon Lee,Intae Yu,Taha Beyrouthy,Helena Brandao Malbouisson,Yasser Maghrbi,Toms Torims,Viesturs Veckalns,Marijus Ambrozas,Alexandra Carvalho Antunes Oliveira,Andrius Juodagalvis,Aurelijus Rinkevicius,Gintautas Tamulaitis,Nurfikri Bin Norjoharuddeen,Wan Ahmad Tajuddin Wan Abdullah,Wagner Carvalho,Mohd Nizam Yusli,Zukhaimira Zolkapli,Jose F Benitez,Alfredo Castaneda Hernandez,Moisés León Coello,Javier Alberto Murillo Quijada,Ashish Sehrawat,Lizardo Valencia Palomo,Gabriel Ayala,Heriberto Castilla-Valdez,Jose Chinellato,Eduard La Cruz-Burelo,Ivan Heredia-De La Cruz,Ricardo Lopez-Fernandez,Cesar Atzin Mondragon Herrera,Daniel Alejandro Perez Navarro,Alberto Sánchez Hernández,Salvador Carrillo Moreno,Cristina Oropeza Barrera,Mateo Ramírez García,Fabiola Vazquez Valencia,Lukas Lechner,Eliza Melo Da Costa,Isabel Pedraza,Humberto Antonio Salazar Ibarguen,Cecilia Uribe Estrada,Jelena Mijuskovic,Natasa Raicevic,David Krofcheck,Srinidhi Bheesette,Philip H Butler,Ashfaq Ahmad,Muhammad Irfan Asghar,Gustavo Gil Da Silveira,Ali Awais,Muhammad Imran Malik Awan,Hafeez R Hoorani,Wajid Ali Khan,Mehar Ali Shah,Muhammad Shoaib,Muhammad Waqas,Valentina Avati,Leszek Grzanka,Maciej Malawski,Dilson Jesus Damiao,Helena Bialkowska,Michal Bluj,Bozena Boimska,Maciej Górski,Malgorzata Kazana,Michal Szleper,Piotr Zalewski,Karol Bunkowski,Krzysztof Doroba,Artur Kalinowski,Sandro Fonseca Souza,Marcin Konecki,Jan Krolikowski,Marek Walczak,Mariana Araujo

Published Date

2022/1/1

A search for supersymmetry in events with two or three low-momentum leptons and missing transverse momentum is performed. The search uses proton-proton collisions at= 13 TeV collected in the three-year period 2016–2018 by the CMS experiment at the LHC and corresponding to an integrated luminosity of up to 137 fb− 1. The data are found to be in agreement with expectations from standard model processes. The results are interpreted in terms of electroweakino and top squark pair production with a small mass difference between the produced supersymmetric particles and the lightest neutralino. For the electroweakino interpretation, two simplified models are used, a wino-bino model and a higgsino model. Exclusion limits at 95% confidence level are set on\({\overset {\sim}{\upchi}} _2^ 0/{\overset {\sim}{\upchi}} _1^{\pm}\) masses up to 275 GeV for a mass difference of 10 GeV in the wino-bino case, and …

Search for Higgs Boson Pair Production in the Four Quark Final State in Proton-Proton Collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Liam Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins,Y Wang,K Yi

Journal

Physical review letters

Published Date

2022/8/18

A search for pairs of Higgs bosons produced via gluon and vector boson fusion is presented, focusing on the four b quark final state. The data sample consists of proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the CMS detector at the LHC, and corresponds to an integrated luminosity of 138 fb− 1. No deviation from the background-only hypothesis is observed. A 95% confidence level upper limit on the Higgs boson pair production cross section is observed at 3.9 times the standard model prediction for an expected value of 7.8. Constraints are also set on the modifiers of the Higgs field self-coupling, κ λ, and of the coupling of two Higgs bosons to two vector bosons, κ 2 V. The observed (expected) allowed intervals at the 95% confidence level are− 2.3< κ λ< 9.4 (− 5.0< κ λ< 12.0) and− 0.1< κ 2 V< 2.2 (− 0.4< κ 2 V< 2.5). These are the most stringent observed constraints to date on the H H …

Search for long-lived heavy neutral leptons with displaced vertices in proton-proton collisions at =13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,Pascal Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Martina Vit,Liam Wezenbeek,Anna Benecke,Agni Bethani,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Khawla Jaffel,Sa Jain,Vincent Lemaitre,Kuntal Mondal,Jessica Prisciandaro,Angela Taliercio,Maksym Teklishyn,Tu Thong Tran,Pietro Vischia,Sébastien Wertz,GA Alves,Carsten Hensel,Arthur Moraes,Patricia Rebello Teles,Walter Luiz Aldá Júnior,Miguel Alves Gallo Pereira,Barroso Ferreira Filho,Helena Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eliza Melo Da Costa,Gustavo Gil Da Silveira,Dilson De Jesus Damiao,Sandro Fonseca De Souza,Clemencia Mora Herrera,Kevin Mota Amarilo,Luiz Mundim,Helio Nogima,Alberto Santoro,Sheila Mara Silva Do Amaral,Andre Sznajder,Mauricio Thiel,Felipe Torres Da Silva De Araujo,Antonio Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,Pedro G Mercadante,Sergio F Novaes,Sandra S Padula,Aleksandar Aleksandrov,Georgy Antchev,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mircho Rodozov,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Todor Ivanov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Tongguang Cheng,Tahir Javaid,Monika Mittal,Li Yuan,Muhammad Ahmad,Gerry Bauer,Candan Dozen,Zhen Hu,Jordan Martins,Yi Wang

Journal

Journal of High Energy Physics

Published Date

2022/7

A search for heavy neutral leptons (HNLs), the right-handed Dirac or Majorana neutrinos, is performed in final states with three charged leptons (electrons or muons) using proton-proton collision data collected by the CMS experiment at= 13 TeV at the CERN LHC. The data correspond to an integrated luminosity of 138 fb− 1. The HNLs could be produced through mixing with standard model neutrinos ν. For small values of the HNL mass (< 20 GeV) and the square of the HNL-ν mixing parameter (10− 7–10− 2), the decay length of these particles can be large enough so that the secondary vertex of the HNL decay can be resolved with the CMS silicon tracker. The selected final state consists of one lepton emerging from the primary proton-proton collision vertex, and two leptons forming a displaced, secondary vertex. No significant deviations from the standard model expectations are observed, and constraints are …

Search for charged-lepton flavor violation in top quark production and decay in pp collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,J Schieck,R Schöfbeck,D Schwarz,S Templ,W Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Martina Vit,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

Journal of High Energy Physics

Published Date

2022/6

Results are presented from a search for charged-lepton flavor violating (CLFV) interactions in top quark production and decay in pp collisions at a center-of-mass energy of 13 TeV. The events are required to contain one oppositely charged electron-muon pair in the final state, along with at least one jet identified as originating from a bottom quark. The data correspond to an integrated luminosity of 138 fb− 1, collected by the CMS experiment at the LHC. This analysis includes both the production (q→ eμt) and decay (t→ eμq) modes of the top quark through CLFV interactions, with q referring to au or c quark. These interactions are parametrized using an effective field theory approach. With no significant excess over the standard model expectation, the results are interpreted in terms of vector-, scalar-, and tensor-like CLFV four-fermion effective interactions. Finally, observed exclusion limits are set at 95% confidence …

Search for higgsinos decaying to two Higgs bosons and missing transverse momentum in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Liam Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins,Y Wang,K Yi

Journal

Journal of High Energy Physics

Published Date

2022/5

Results are presented from a search for physics beyond the standard model in proton-proton collisions at= 13 TeV in channels with two Higgs bosons, each decaying via the process H→ b, and large missing transverse momentum. The search uses a data sample corresponding to an integrated luminosity of 137 fb− 1 collected by the CMS experiment at the CERN LHC. The search is motivated by models of supersymmetry that predict the production of neutralinos, the neutral partners of the electroweak gauge and Higgs bosons. The observed event yields in the signal regions are found to be consistent with the standard model background expectations. The results are interpreted using simplified models of supersymmetry. For the electroweak production of nearly mass-degenerate higgsinos, each of whose decay chains yields a neutralino\(\left ({\overset {\sim}{\upchi}} _1^ 0\right)\) that in turn decays to a …

Springer: Search for single production of a vector-like T quark decaying to a top quark and a Z boson in the final state with jets and missing transverse momentum at $\sqrt {s …

Authors

Armen Tumasyan,Robin Erbacher,Camilo Andres Carrillo Montoya,Wagner Carvalho,Maciej Górski,Danek Kotlinski,Cole Lindsey,Balazs Ujvari,Samila Muthumuni,Ayse Polatoz,Anna Tsatsos,Vinicius Massami Mikuni,Alfredo Gurrola,Basile Vermassen,Anne-Marie Magnan,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Ludivine Ceard,Pierre Van Hove,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Giuseppe Latino,Andrew Hart,Federico Vazzoler,Thomas Ferbel,Sinan Sagir,Changgi Huh,Georgios Tsipolitis,Sanghyun Ko,Dylan Apparu,Soureek Mitra,Jeroen Hegeman,Sergei Slabospitskii,Shamik Ghosh,Mircho Rodozov,Michael Tytgat,Robert Schöfbeck,Luc Pape,James Hirschauer,Andreas Nürnberg,Francisco Yumiceva,Reza Goldouzian,Victor Golovtcov,Ram Krishna Dewanjee,Chiara Rovelli,Eliza Melo Da Costa,Daniele Fasanella,Wei Shi,Robert Hirosky,Santeri Laurila,Zhen Hu,Hans Reithler,Lalit Mohan Pant,Danila Tlisov,Austin Baty,Soumya Mukherjee,Tomas Lindén,Jonathon Langford,Graham Wilson,William Tabb,Furkan Dolek,Attilio Santocchia,Jaehoon Lim,Christos Roskas,Sergio Sánchez Navas,Virgil E Barnes,Wolfram Dietrich Zeuner,Hesham El Faham,Jithin Madhusudanan Sreekala,Raphael Granier de Cassagnac,Antoine Lesauvage,Kin Ho Lo,Axel Buchot Perraguin,Andrés Abreu,Ernesto Migliore,Giacomo Ortona,Ece Asilar,Edoardo Bossini,Alexander Morton,Vivan Nguyen,Redwan Habibullah,Henri Petrow,Jonathan Guiang,Kai-Feng Chen,Matthew Nguyen,David Stickland,Giorgio Apollinari,Michael Oshiro,Damir Lelas,Gillian Kopp,Michel Della Negra,Scarlet Norberg,Amitabh Lath,Dennis Roy,Alexander Pauls,Martijn Mulders,Sandhya Jain,Lorenzo Uplegger,Marina Kolosova,Sunil Bansal,Jeremi Niedziela,Roberval Walsh,Hugo Becerril Gonzalez,Konstantin Shchablo,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Olmo Cerri,Chia-Ming Kuo,Siqi Yuan,Olena Karacheban,Alicia Calderon,Akshansh Singh,Pawan Kumar Netrakanti,Kevin Black,Thomas Kress,Georgia Karapostoli,Fotios Ptochos,Berkan Kaynak,Marc M Baarmand,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,De Hua Zhu,Abhishikth Mallampalli,Maria Cepeda,Mauricio Thiel,Cécile Caillol,Yannik Rath,John Paul Chou,Mohammed Mahmoud,Peicho Petkov,Davide Piccolo,Pawel de Barbaro,Vaia Papadimitriou,Robert White,Nural Akchurin,Qianying Guo,Olaf Behnke,Reham Aly,Vincenzo Innocente,Hyunchul Kim,Attila Racz,Paul Baillon,Viktor Savrin,Jyothsna Rani Komaragiri,Yuan Chen

Journal

JHEP

Published Date

2022/1/6

A search is presented for single production of a vector-like T quark with charge 2/3 e, in the decay channel featuring a top quark and a Z boson, with the top quark decaying hadronically and the Z boson decaying to neutrinos. The search uses data collected by the CMS experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 137 fb− 1 recorded at the CERN LHC in 2016–2018. The search is sensitive to a T quark mass between 0.6 and 1.8 TeV with decay widths ranging from negligibly small up to 30% of the T quark mass. Reconstruction strategies for the top quark are based on the degree of Lorentz boosting of its final state. At 95% confidence level, the upper limit on the product of the cross section and branching fraction for a T quark of small decay width varies between 15 and 602 fb, depending on its mass. For a T quark with decay widths between 10 and 30% of its mass, this upper limit ranges between 16 and 836 fb. For most of the studied range, the results provide the best limits to date. This is the first search for single T quark production based on the full Run 2 data set of the LHC.

Measurement of the Inclusive and Differential Higgs Boson Production Cross Sections in the Decay Mode to a Pair of Leptons in Collisions at

Authors

Albert M Sirunyan,Robin Erbacher,Camilo Andres Carrillo Montoya,Wagner Carvalho,Maciej Górski,Danek Kotlinski,Cole Lindsey,Balazs Ujvari,Samila Muthumuni,Shaaban Khalil,Vinicius Massami Mikuni,Alfredo Gurrola,Basile Vermassen,Young-Il Choi,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Lorenzo Uplegger,Pierre Van Hove,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Alessandro Thea,Giuseppe Latino,Andrew Hart,Federico Vazzoler,Sinan Sagir,Georgios Tsipolitis,Jennifer Chu,Sanghyun Ko,Jozsef Molnar,Soureek Mitra,Torben Dreyer,Sergei Slabospitskii,Shamik Ghosh,Mircho Rodozov,Michael Tytgat,Robert Schöfbeck,Luc Pape,James Hirschauer,Andreas Nürnberg,Burak Bilki,Francisco Yumiceva,Evrim Ersin Kangal,Reza Goldouzian,Victor Golovtcov,Ram Krishna Dewanjee,Chiara Rovelli,Daniele Fasanella,Wei Shi,Robert Hirosky,Santeri Laurila,Zhen Hu,Hans Reithler,Lalit Mohan Pant,Danila Tlisov,Austin Baty,Tomas Lindén,Zachary Lesko,Jonathon Langford,Graham Wilson,Giovanna Selvaggi,Furkan Dolek,Attilio Santocchia,Jaehoon Lim,Christos Roskas,Sergio Sánchez Navas,Bhawandeep Bhawandeep,Andrew Gilbert,Weifeng Ji,Wolfram Dietrich Zeuner,Tiziano Camporesi,Jithin Madhusudanan Sreekala,Raphael Granier de Cassagnac,Georgios Daskalakis,Kin Ho Lo,Ernesto Migliore,Giacomo Ortona,Paul Schütze,Salvatore Nuzzo,Alexander Morton,Vivan Nguyen,Nicola Cavallo,Anne-Marie Magnan,Christopher Mcginn,Chanwook Hwang,Redwan Habibullah,Kai-Feng Chen,Matthew Nguyen,David Stickland,Giorgio Apollinari,Marta Felcini,Damir Lelas,Xinmei Niu,Gillian Kopp,Michal Olszewski,Scarlet Norberg,Oleksandr Zenaiev,Paul Lujan,Dennis Roy,Alexander Pauls,Martijn Mulders,Fabrizio Palla,Satoshi Hasegawa,Elena Popova,Jeremi Niedziela,Roberval Walsh,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Andrea Carlo Marini,Olmo Cerri,Juozas Vaitkus,Prakash Thapa,Caroline Elisabeth Niniane Niemeyer,Olena Karacheban,Alicia Calderon,Akshansh Singh,Pawan Kumar Netrakanti,Kevin Black,Thomas Kress,Georgia Karapostoli,Fotios Ptochos,Noemi Beni,Berkan Kaynak,Anna Zanetti,Marc M Baarmand,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,De Hua Zhu,Clint Richardson,Maria Cepeda,Mauricio Thiel,William Tabb,Yannik Rath,John Paul Chou,Linwei Li,Peicho Petkov,Lorenzo Russo,Davide Piccolo,Pawel de Barbaro,Vaia Papadimitriou,Nural Akchurin,Olaf Behnke,Russell Richard Betts,Reham Aly,Vincenzo Innocente,Laura Dodd

Published Date

2020/7/4

Measurements of the fiducial inclusive and differential production cross sections of the Higgs boson in proton-proton collisions at= 13 TeV are performed using events where the Higgs boson decays into a pair of W bosons that subsequently decay into a final state with an electron, a muon, and a pair of neutrinos. The analysis is based on data collected with the CMS detector at the LHC during 2016–2018, corresponding to an integrated luminosity of 137 fb− 1. Production cross sections are measured as a function of the transverse momentum of the Higgs boson and the associated jet multiplicity. The Higgs boson signal is extracted and simultaneously unfolded to correct for selection efficiency and resolution effects using maximum-likelihood fits to the observed distributions in data. The integrated fiducial cross section is measured to be 86. 5±9. 5 fb, consistent with the Standard Model expectation of 82. 5±4. 2 fb …

Inclusive and differential cross section measurements of single top quark production in association with a Z boson in proton-proton collisions at = 13 TeV

Authors

Aram Hayrapetyan,Robin Erbacher,Camilo Andres Carrillo Montoya,Dave M Newbold,Wagner Carvalho,Nimmitha Karunarathna,Maciej Górski,Manuel Sommerhalder,Cole Lindsey,Balazs Ujvari,Samila Muthumuni,Ayse Polatoz,Anna Tsatsos,Vinicius Massami Mikuni,Elton Shumka,Alfredo Gurrola,Anne-Marie Magnan,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Ludivine Ceard,Pierre Van Hove,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Giuseppe Latino,Andrew Hart,Federico Vazzoler,Sinan Sagir,Changgi Huh,Georgios Tsipolitis,Joseph Lynn Dulemba,Sanghyun Ko,Dylan Apparu,Soureek Mitra,Sergei Slabospitskii,Shamik Ghosh,Maria Giulia Ratti,Michael Tytgat,Robert Schöfbeck,Julia Vazquez Escobar,James Hirschauer,Andreas Nürnberg,Ho Fung Tsoi,Francisco Yumiceva,Reza Goldouzian,Victor Golovtcov,Ram Krishna Dewanjee,Chiara Rovelli,Eliza Melo Da Costa,Daniele Fasanella,Polina Simkina,Vipin Bhatnagar,Zhen Hu,Hans Reithler,Austin Baty,Soumya Mukherjee,Tomas Lindén,Jonathon Langford,Graham Wilson,William Tabb,Furkan Dolek,Attilio Santocchia,Sergio Sánchez Navas,Manuel Calderon De La Barca Sanchez,Wolfram Dietrich Zeuner,Hesham El Faham,Jithin Madhusudanan Sreekala,Raphael Granier de Cassagnac,Georgios Daskalakis,Kin Ho Lo,Axel Buchot Perraguin,Andrés Abreu,Ernesto Migliore,Alexander Zotz,Tilman Rohe,Paul Schütze,Ece Asilar,Salvatore Nuzzo,Alexander Morton,Grace Cummings,Yasser Assran,Florian Joel J Bury,Gurkan Karaman,Henri Petrow,Jonathan Guiang,Kai-Feng Chen,Matthew Nguyen,Liam Brennan,Irene Dutta,Giorgio Apollinari,Michael Oshiro,Damir Lelas,Gillian Kopp,Michel Della Negra,Amitabh Lath,Dennis Roy,Alexander Pauls,Martijn Mulders,Fabrizio Palla,Nikolas Pervan,Lorenzo Uplegger,Marina Kolosova,Sunil Bansal,Roberval Walsh,Hugo Becerril Gonzalez,Vladimir Makarenko,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Olmo Cerri,George Stephans,Siqi Yuan,Luiz Mundim,Olena Karacheban,Alicia Calderon,Zhaozhong Shi,Kevin Black,Thomas Kress,Georgia Karapostoli,Samuel Lascio,Fotios Ptochos,Berkan Kaynak,Wei Wei,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,Abhishikth Mallampalli,Chenfeng Lu,Maria Cepeda,Mauricio Thiel,Dylan Blend,Cécile Caillol,Yannik Rath,John Paul Chou,Nihar Ranjan Saha,Orgho Neogi,Mohammed Mahmoud,Peicho Petkov,John Rotter,Davide Piccolo,Emanuel Pfeffer,Florian Rehm,Pawel de Barbaro,Vaia Papadimitriou,Robert White,Nural Akchurin,Qianying Guo,Patrice Verdier

Published Date

2023/9/25

Measurements of inclusive and normalized differential cross sections of the associated production of top quark-antiquark and bottom quark-antiquark pairs, ttbb, are presented. The results are based on data from proton-proton collisions collected by the CMS detector at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 138 fb− 1. The cross sections are measured in the lepton+ jets decay channel of the top quark pair, using events containing exactly one isolated electron or muon and at least five jets. Measurements are made in four fiducial phase space regions, targeting different aspects of the ttbb process. Distributions are unfolded to the particle level through maximum likelihood fits, and compared with predictions from several event generators. The inclusive cross section measurements of this process in the fiducial phase space regions are the most precise to date. In most cases, the measured inclusive cross sections exceed the predictions with the chosen generator settings. The only exception is when using a particular choice of dynamic renormalization scale, µR= 12 ni= t, t, b, b m1/4

Measurement of differential cross sections in proton-proton collisions at and effective field theory constraints

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Physical Review D

Published Date

2022/3/9

Differential cross section measurements of W±γ production in proton-proton collisions at s= 13 TeV are presented. The data set used in this study was collected with the CMS detector at the CERN LHC in 2016–2018 with an integrated luminosity of 138 fb− 1. Candidate events containing an electron or muon, a photon, and missing transverse momentum are selected. The measurements are compared with standard model predictions computed at next-to-leading and next-to-next-to-leading orders in perturbative quantum chromodynamics. Constraints on the presence of TeV-scale new physics affecting the W W γ vertex are determined within an effective field theory framework, focusing on the O 3 W operator. A simultaneous measurement of the photon transverse momentum and the azimuthal angle of the charged lepton in a special reference frame is performed. This two-dimensional approach provides up to a factor …

Search for long-lived particles decaying into muon pairs in proton-proton collisions at = 13 TeV collected with a dedicated high-rate data stream

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,M Vit,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

Journal of High Energy Physics

Published Date

2022/4

A search for long-lived particles decaying into muon pairs is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment at the LHC in 2017 and 2018, corresponding to an integrated luminosity of 101 fb− 1. The data sets used in this search were collected with a dedicated dimuon trigger stream with low transverse momentum thresholds, recorded at high rate by retaining a reduced amount of information, in order to explore otherwise inaccessible phase space at low dimuon mass and nonzero displacement from the primary interaction vertex. No significant excess of events beyond the standard model expectation is found. Upper limits on branching fractions at 95% confidence level are set on a wide range of mass and lifetime hypotheses in beyond the standard model frameworks with the Higgs boson decaying into a pair of long-lived dark photons, or with a long …

Nuclear modification of Y states in pPb collisions at sNN= 5.02 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Martin Flechl,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Ilse Krätschmer,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,Vladimir Drugakov,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,T Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D'Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,L Favart,A Grebenyuk,AK Kalsi,L Moureaux,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,T Cornelis,D Dobur,I Khvastunov,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,G Bruno,C Caputo,P David,C Delaere,M Delcourt,A Giammanco,V Lemaitre,J Prisciandaro,A Saggio,P Vischia,J Zobec,GA Alves,G Correia Silva,C Hensel,A Moraes,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,Hb Malbouisson,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,WL Prado Da Silva,P Rebello Teles,LJ Sanchez Rosas,A Santoro,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,W Fang,X Gao,L Yuan,M Ahmad,Z Hu,Y Wang,GM Chen,HS Chen,M Chen,CH Jiang,D Leggat

Journal

Physics Letters B

Published Date

2022/12/10

Production cross sections of Image 1, Image 2, and Image 3 states decaying into Image 4 in proton-lead (p Pb) collisions are reported using data collected by the CMS experiment at s NN= 5.02 TeV. A comparison is made with corresponding cross sections obtained with p p data measured at the same collision energy and scaled by the Pb nucleus mass number. The nuclear modification factor for Image 1 is found to be Image 5. Similar results for the excited states indicate a sequential suppression pattern, such that Image 6. The suppression of all states is much less pronounced in p Pb than in PbPb collisions, and independent of transverse momentum Image 7 and center-of-mass rapidity Image 8 of the individual Image 9 state in the studied range Image 10 and Image 11. Models that incorporate final-state effects of bottomonia in pPb collisions are in better agreement with the data than those which only assume …

Measurement of the Drell-Yan forward-backward asymmetry at high dilepton masses in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Vladimir Makarenko,Tatiana Nechaeva,Uladzislava Yevarouskaya,Mohamed Rashad Darwish,Eddi A De Wolf,Tahys Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,Pierre Van Mechelen,Senne Van Putte,ES Bols,J D’Hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,Pascal Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,César Rendón,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Liam Wezenbeek,Anna Benecke,Agni Bethani,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Khawla Jaffel,Sa Jain,Vincent Lemaitre,Kuntal Mondal,Jessica Prisciandaro,Angela Taliercio,Maksym Teklishyn,Tu Thong Tran,Pietro Vischia,Sébastien Wertz,GA Alves,Carsten Hensel,Arthur Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eliza Melo Da Costa,Gustavo Gil Da Silveira,Dilson de Jesus Damiao,Vitor Dos Santos Sousa,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,Luiz Mundim,Helio Nogima,Alberto Santoro,SM Silva Do Amaral,Andre Sznajder,Mauricio Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,Pedro G Mercadante,Sergio F Novaes,Sandra S Padula,Aleksandar Aleksandrov,Georgy Antchev,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mircho Rodozov,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Todor Ivanov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Tongguang Cheng,Tahir Javaid,Monika Mittal,Li Yuan,Muhammad Ahmad,Gerry Bauer

Journal

Journal of High Energy Physics

Published Date

2022/8

A measurement of the forward-backward asymmetry of pairs of oppositely charged leptons (dimuons and dielectrons) produced by the Drell-Yan process in proton-proton collisions is presented. The data sample corresponds to an integrated luminosity of 138 fb− 1 collected with the CMS detector at the LHC at a center-of-mass energy of 13 TeV. The asymmetry is measured as a function of lepton pair mass for masses larger than 170 GeV and compared with standard model predictions. An inclusive measurement across both channels and the full mass range yields an asymmetry of 0. 612±0. 005 (stat)±0. 007 (syst). As a test of lepton flavor universality, the difference between the dimuon and dielectron asymmetries is measured as well. No statistically significant deviations from standard model predictions are observed. The measurements are used to set limits on the presence of additional gauge bosons. For a Z …

Search for resonant production of strongly coupled dark matter in proton-proton collisions at 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,ES Bols,J D’Hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Rendón,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,L Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu

Journal

Journal of High Energy Physics

Published Date

2022/6

The first collider search for dark matter arising from a strongly coupled hidden sector is presented and uses a data sample corresponding to 138 fb− 1, collected with the CMS detector at the CERN LHC, at= 13 TeV. The hidden sector is hypothesized to couple to the standard model (SM) via a heavy leptophobic Z′ mediator produced as a resonance in proton-proton collisions. The mediator decay results in two “semivisible” jets, containing both visible matter and invisible dark matter. The final state therefore includes moderate missing energy aligned with one of the jets, a signature ignored by most dark matter searches. No structure in the dijet transverse mass spectra compatible with the signal is observed. Assuming the Z′ boson has a universal coupling of 0.25 to the SM quarks, an inclusive search, relevant to any model that exhibits this kinematic behavior, excludes mediator masses of 1.5–4.0 TeV at 95 …

First Search for Exclusive Diphoton Production at High Mass with Tagged Protons in Proton-Proton Collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,Illia Khvastunov,Marek Niedziela,Christos Roskas,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,H Wang,L Yuan,M Ahmad,G Bauer,Z Hu

Journal

Physical review letters

Published Date

2022/6/28

A search for exclusive two-photon production via photon exchange in proton-proton collisions, p p→ p γ γ p with intact protons, is presented. The data correspond to an integrated luminosity of 9.4 fb− 1 collected in 2016 using the CMS and TOTEM detectors at a center-of-mass energy of 13 TeV at the LHC. Events are selected with a diphoton invariant mass above 350 GeV and with both protons intact in the final state, to reduce backgrounds from strong interactions. The events of interest are those where the invariant mass and rapidity calculated from the momentum losses of the forward-moving protons match the mass and rapidity of the central, two-photon system. No events are found that satisfy this condition. Interpreting this result in an effective dimension-8 extension of the standard model, the first limits are set on the two anomalous four-photon coupling parameters. If the other parameter is constrained to its …

Searches for long-lived charged particles in pp collisions at root s= 7 and 8 TeV (vol 07, 122, 2013)

Authors

S Chatrchyan,V Khachatryan,AM Sirunyan,A Tumasyan,W Adam,T Bergauer,M Dragicevic,J Eroe,C Fabjan,M Friedl,R Fruehwirth,VM Ghete,N Hoermann,J Hrubec,M Jeitler,W Kiesenhofer,V Knuenz,M Krammer,I Kraetschmer,D Liko,I Mikulec,D Rabady,B Rahbaran,C Rohringer,H Rohringer,R Schoefbeck,J Strauss,A Taurok,W Treberer-Treberspurg,W Waltenberger,C-E Wulz,N Shumeiko,S Alderweireldt,M Bansal,S Bansal,T Cornelis,EA De Wolf,X Janssen,A Knutsson,S Luyckx,L Mucibello,S Ochesanu,B Roland,R Rougny,H Van Haevermaet,P Van Mechelen,A Van Spilbeeck,F Blekman,S Blyweert,J D'Hondt,A Kalogeropoulos,J Keaveney,M Maes,A Olbrechts,S Tavernier,W Van Doninck,P Van Mulders,GP Van Onsem,I Villella,B Clerbaux,G De Lentdecker,L Favart,APR Gay,T Hreus,A Leonard,PE Marage,A Mohammadi,L Pernie,T Reis,T Seva,L Thomas,C Vander Velde,P Vanlaer,J Wang,V Adler,K Beernaert,L Benucci,A Cimmino,S Costantini,S Dildick,G Garcia,B Klein,J Lellouch,A Marinov,J Mccartin,AA Ocampo Rios,Dirk Ryckbosch,M Sigamani,Nadja Strobbe,F Thyssen,Michael Tytgat,S Walsh,E Yazgan,N Zaganidis,S Basegmez,C Beluffi,G Bruno,R Castello,A Caudron,L Ceard,C Delaere,T du Pree,D Favart,L Forthomme,A Giammanco,J Hollar,P Jez,V Lemaitre,J Liao,O Militaru,C Nuttens,D Pagano,A Pin,K Piotrzkowski,A Popov,M Selvaggi,N Beliy,T Caebergs,E Daubie,GH Hammad,GA Alves,M Correa Martins Junior,T Martins,ME Pol,MHG Souza,WL Alda Junior,W Carvalho,J Chinellato,A Custodio,EM Da Costa,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,H Malbouisson,M Malek,D Matos Figueiredo,L Mundim,H Nogima,WL Prado Da Silva,A Santoro,A Sznajder,EJ Tonelli Manganote,A Vilela Pereira,CA Bernardes,FA Dias,TR Fernandez Perez Tomei,EM Gregores,C Lagana,F Marinho,PG Mercadante

Journal

Journal of High Energy Physics

Published Date

2022

CMS has uncovered an issue with the muon trigger simulation that impacts particles with| Q|= e/3. Consequently, we retract the cross section and mass limits, and related analysis details for| Q|= e/3 particles set in JHEP 07(2013) 122. The| Q|= 2e/3 results are not affected within the uncertainties. We are supplying in attachment revised plots for figure 10 and figure 11 plus a revised table 8 that have the| Q|= e/3 results removed.

Measurement of the inclusive and differential t γ cross sections in the dilepton channel and effective field theory interpretation in proton-proton collisions at = 13 …

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Rendón,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,L Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

Journal of High Energy Physics

Published Date

2022/5

The production cross section of a top quark pair in association with a photon is measured in proton-proton collisions in the decay channel with two oppositely charged leptons (e±μ∓, e+ e−, or μ+ μ−). The measurement is performed using 138 fb− 1 of proton-proton collision data recorded by the CMS experiment at= 13 TeV during the 2016–2018 data-taking period of the CERN LHC. A fiducial phase space is defined such that photons radiated by initial-state particles, top quarks, or any of their decay products are included. An inclusive cross section of 175. 2±2. 5 (stat)±6. 3 (syst) fb is measured in a signal region with at least one jet coming from the hadronization of a bottom quark and exactly one photon with transverse momentum above 20 GeV. Differential cross sections are measured as functions of several kinematic observables of the photon, leptons, and jets, and compared to standard model predictions. The …

Search for new physics in the lepton plus missing transverse momentum final state in proton-proton collisions at 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Journal of High Energy Physics

Published Date

2022/7

A search for physics beyond the standard model (SM) in final states with an electron or muon and missing transverse momentum is presented. The analysis uses data from proton-proton collisions at a centre-of-mass energy of 13 TeV, collected with the CMS detector at the LHC in 2016–2018 and corresponding to an integrated luminosity of 138 fb− 1. No significant deviation from the SM prediction is observed. Model-independent limits are set on the production cross section of W’bosons decaying into lepton-plus-neutrino final states. Within the framework of the sequential standard model, with the combined results from the electron and muon decay channels a W’boson with mass less than 5.7 TeV is excluded at 95% confidence level. Results on a SM precision test, the determination of the oblique electroweak W parameter, are presented using LHC data for the first time. These results together with those from the …

Search for invisible decays of the Higgs boson produced via vector boson fusion in proton-proton collisions at 13 TeV

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2201.11585

Published Date

2022/1/27

A search for invisible decays of the Higgs boson produced via vector boson fusion (VBF) has been performed with 101 fb of proton-proton collisions delivered by the LHC at 13 TeV and collected by the CMS detector in 2017 and 2018. The sensitivity to the VBF production mechanism is enhanced by constructing two analysis categories, one based on missing transverse momentum, and a second based on the properties of jets. In addition to control regions with Z and W boson candidate events, a highly populated control region, based on the production of a photon in association with jets, is used to constrain the dominant irreducible background from the invisible decay of a Z boson produced in association with jets. The results of this search are combined with all previous measurements in the VBF topology, based on data collected in 2012 (at 8 TeV), 2015, and 2016, corresponding to integrated luminosities of 19.7, 2.3, and 36.3 fb, respectively. The observed (expected) upper limit on the invisible branching fraction of the Higgs boson is found to be 0.18 (0.10) at the 95% confidence level, assuming the standard model production cross section. The results are also interpreted in the context of Higgs-portal models.

Erratum to: Search for heavy Higgs bosons decaying to a top quark pair in proton-proton collisions at = 13 TeV

Authors

Albert M Sirunyan,A Tumasyan,W Adam,F Ambrogi,T Bergauer,J Brandstetter,M Dragicevic,J Erö,A Escalante Del Valle,M Flechl,R Frühwirth,M Jeitler,N Krammer,I Krätschmer,D Liko,T Madlener,I Mikulec,N Rad,J Schieck,R Schöfbeck,M Spanring,D Spitzbart,W Waltenberger,C-E Wulz,M Zarucki,V Drugakov,MR Darwish,EA De Wolf,D Di Croce,X Janssen,J Lauwers,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,L Moreels,Q Python,K Skovpen,S Tavernier,W Van Doninck,P Van Mulders,I Van Parijs,D Beghin,B Bilin,H Brun,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,L Favart,A Grebenyuk,AK Kalsi,J Luetic,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,T Cornelis,D Dobur,I Khvastunov,M Niedziela,C Roskas,D Trocino,M Tytgat,W Verbeke,B Vermassen,M Vit,N Zaganidis,O Bondu,G Bruno,C Caputo,P David,C Delaere,M Delcourt,A Giammanco,V Lemaitre,A Magitteri,J Prisciandaro,A Saggio,M Vidal Marono,P Vischia,J Zobec,FL Alves,GA Alves,G Correia Silva,C Hensel,A Moraes,P Rebello Teles,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,LM Huertas Guativa,H Malbouisson,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,WL Prado Da Silva,LJ Sanchez Rosas,A Santoro,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,S Ahuja,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,A Marinov,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov

Journal

Journal of High Energy Physics

Published Date

2022/3

The CMS collaboration., Sirunyan, AM, Tumasyan, A. et al. Erratum to: Search for heavy Higgs bosons decaying to a top quark pair in proton-proton collisions at= 13 TeV. J. High Energ. Phys. 2022, 187 (2022). https://doi. org/10.1007/JHEP03 (2022) 187

Search for electroweak production of charginos and neutralinos in proton-proton collisions at = 13 TeV

Authors

Georges Aad,Brad Abbott,Dale Charles Abbott,A Abed Abud,K Abeling,DK Abhayasinghe,SH Abidi,OS AbouZeid,NL Abraham,H Abramowicz,H Abreu,Y Abulaiti,BS Acharya,B Achkar,S Adachi,L Adam,L Adamczyk,L Adamek,J Adelman,M Adersberger,A Adiguzel,S Adorni,T Adye,AA Affolder,Y Afik,C Agapopoulou,MN Agaras,A Aggarwal,C Agheorghiesei,JA Aguilar-Saavedra,F Ahmadov,WS Ahmed,X Ai,G Aielli,S Akatsuka,TPA Åkesson,E Akilli,AV Akimov,K Al Khoury,GL Alberghi,J Albert,MJ Verzini,S Alderweireldt,M Aleksa,IN Aleksandrov,C Alexa,D Alexandre,T Alexopoulos,A Alfonsi,M Alhroob,B Ali,G Alimonti,J Alison,SP Alkire,C Allaire,BMM Allbrooke,BW Allen,PP Allport,A Aloisio,A Alonso,F Alonso,C Alpigiani,AA Alshehri,M Alvarez Estevez,D Álvarez Piqueras,MG Alviggi,Y Amaral Coutinho,A Ambler,L Ambroz,C Amelung,D Amidei,SP Santos,S Amoroso,CS Amrouche,F An,C Anastopoulos,N Andari,T Andeen,CF Anders,JK Anders,A Andreazza,V Andrei,CR Anelli,S Angelidakis,A Angerami,AV Anisenkov,A Annovi,C Antel,MT Anthony,M Antonelli,DJA Antrim,F Anulli,M Aoki,J Aparisi Pozo,L Aperio Bella,G Arabidze,JP Araque,V Araujo Ferraz,R Araujo Pereira,C Arcangeletti,ATH Arce,FA Arduh,JF Arguin,S Argyropoulos,J-H Arling,AJ Armbruster,A Armstrong,O Arnaez,H Arnold,A Artamonov,G Artoni,S Artz,S Asai,N Asbah,EM Asimakopoulou,L Asquith,K Assamagan,R Astalos,RJ Atkin,M Atkinson,NB Atlay,H Atmani,K Augsten,G Avolio,R Avramidou,MK Ayoub,AM Azoulay,G Azuelos,MJ Baca,H Bachacou,K Bachas,M Backes,F Backman,P Bagnaia,M Bahmani,H Bahrasemani,AJ Bailey,VR Bailey,JT Baines,M Bajic,C Bakalis,OK Baker,PJ Bakker,D Bakshi Gupta,S Balaji,EM Baldin,P Balek,F Balli,WK Balunas,J Balz

Journal

The European Physical Journal C

Published Date

2020/2

A search for the electroweak production of charginos and sleptons decaying into final states with two electrons or muons is presented. The analysis is based on 139 fb of proton–proton collisions recorded by the ATLAS detector at the Large Hadron Collider at. Three R-parity-conserving scenarios where the lightest neutralino is the lightest supersymmetric particle are considered: the production of chargino pairs with decays via either W bosons or sleptons, and the direct production of slepton pairs. The analysis is optimised for the first of these scenarios, but the results are also interpreted in the others. No significant deviations from the Standard Model expectations are observed and limits at 95% confidence level are set on the masses of relevant supersymmetric particles in each of the scenarios. For a massless lightest neutralino, masses up to 420 are excluded for the production of the lightest-chargino …

Erratum to: Searches for long-lived charged particles in pp collisions at = 7 and 8 TeV

Authors

S Chatrchyan,V Khachatryan,AM Sirunyan,A Tumasyan,W Adam,T Bergauer,M Dragicevic,J Erö,C Fabjan,M Friedl,R Frühwirth,VM Ghete,N Hörmann,J Hrubec,M Jeitler,W Kiesenhofer,V Knünz,M Krammer,I Krätschmer,D Liko,I Mikulec,D Rabady,B Rahbaran,C Rohringer,H Rohringer,R Schöfbeck,J Strauss,A Taurok,W Treberer-Treberspurg,W Waltenberger,C-E Wulz,N Shumeiko,S Alderweireldt,M Bansal,S Bansal,T Cornelis,EA De Wolf,X Janssen,A Knutsson,S Luyckx,L Mucibello,S Ochesanu,B Roland,R Rougny,H Van Haevermaet,P Van Mechelen,A Van Spilbeeck,F Blekman,S Blyweert,J D’Hondt,A Kalogeropoulos,J Keaveney,M Maes,A Olbrechts,S Tavernier,W Van Doninck,P Van Mulders,GP Van Onsem,I Villella,B Clerbaux,G De Lentdecker,L Favart,APR Gay,T Hreus,A Léonard,PE Marage,A Mohammadi,L Perniè,T Reis,T Seva,L Thomas,C Vander Velde,P Vanlaer,J Wang,V Adler,K Beernaert,L Benucci,A Cimmino,S Costantini,S Dildick,G Garcia,B Klein,J Lellouch,A Marinov,J Mccartin,AA Ocampo Rios,D Ryckbosch,M Sigamani,N Strobbe,F Thyssen,M Tytgat,S Walsh,E Yazgan,N Zaganidis,S Basegmez,C Beluffi,G Bruno,R Castello,A Caudron,L Ceard,C Delaere,T du Pree,D Favart,L Forthomme,A Giammanco,J Hollar,P Jez,V Lemaitre,J Liao,O Militaru,C Nuttens,D Pagano,A Pin,K Piotrzkowski,A Popov,M Selvaggi,N Beliy,T Caebergs,E Daubie,GH Hammad,GA Alves,M Correa Martins Junior,T Martins,ME Pol,MHG Souza,WL Aldá Júnior,W Carvalho,J Chinellato,A Custódio,EM Da Costa,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,H Malbouisson,M Malek,D Matos Figueiredo,L Mundim,H Nogima,WL Prado Da Silva,A Santoro,A Sznajder,EJ Tonelli Manganote,A Vilela Pereira,CA Bernardes,FA Dias,TR Fernandez Perez Tomei,EM Gregores,C Lagana,F Marinho,PG Mercadante

Journal

Journal of High Energy Physics

Published Date

2022/11

CMS has uncovered an issue with the muon trigger simulation that impacts particles with| Q|= e/3. Consequently, we retract the cross section and mass limits, and related analysis details for| Q|= e/3 particles set in JHEP 07(2013) 122. The| Q|= 2e/3 results are not affected within the uncertainties. We are supplying in attachment revised plots for figure 10 and figure 11 plus a revised table 8 that have the| Q|= e/3 results removed.

Constraining new physics with SModelS version 2

Authors

Gaël Alguero,Jan Heisig,Charanjit K Khosa,Sabine Kraml,Suchita Kulkarni,Andre Lessa,Humberto Reyes-González,Wolfgang Waltenberger,Alicia Wongel

Journal

Journal of High Energy Physics

Published Date

2022/8

We present version 2 of SM odel S, a program package for the fast reinterpretation of LHC searches for new physics on the basis of simplified model results. The major novelty of the SM odel S v2 series is an extended topology description with a flexible number of particle attributes, such as spin, charge, decay width, etc. This enables, in particular, the treatment of a wide range of signatures with long-lived particles. Moreover, constraints from prompt and long-lived searches can be evaluated simultaneously in the same run. The current database includes results from searches for heavy stable charged particles, disappearing tracks, displaced jets and displaced leptons, in addition to a large number of prompt searches. The capabilities of the program are demonstrated by two physics applications: constraints on long-lived charged scalars in the scotogenic model, and constraints on the electroweak-ino sector in the …

Measurement of the production cross section for jets in proton-proton collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Liam Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins,Y Wang,K Yi

Journal

Physical Review D

Published Date

2022/5/31

The measurement of the cross section for the production of a Z boson, decaying to dielectrons or dimuons, in association with at least one bottom quark jet is performed with proton-proton collision data at s= 13 TeV. The data sample corresponds to an integrated luminosity of 137 fb− 1, collected by the CMS experiment at the LHC during 2016–2018. The integrated cross sections for Z+≥ 1 b jet and Z+≥ 2 b jets are reported for the electron, muon, and combined channels. The fiducial cross sections in the combined channel are 6.52±0.04 (stat)±0.40 (syst)±0.14 (theo) pb for Z+≥ 1 b jet and 0.65±0.03 (stat)±0.07 (syst)±0.02 (theo) pb for Z+≥ 2 b jets. The differential cross section distributions are measured as functions of various kinematic observables that are useful for precision tests of perturbative quantum chromodynamics predictions. The ratios of integrated and differential cross sections for Z+≥ 2 b jets and Z+≥ …

Observation of the Meson in Pb-Pb and Collisions at and Measurement of its Nuclear Modification Factor

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,T Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Martina Vit,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

Physical review letters

Published Date

2022/6/21

The B c+ meson is observed for the first time in heavy ion collisions. Data from the CMS detector are used to study the production of the B c+ meson in lead-lead (Pb-Pb) and proton-proton (p p) collisions at a center-of-mass energy per nucleon pair of s N N= 5.02 TeV, via the B c+→(J/ψ→ μ+ μ−) μ+ ν μ decay. The B c+ nuclear modification factor, derived from the Pb-Pb–to–p p ratio of production cross sections, is measured in two bins of the trimuon transverse momentum and of the Pb-Pb collision centrality. The B c+ meson is shown to be less suppressed than quarkonia and most of the open heavy-flavor mesons, suggesting that effects of the hot and dense nuclear matter created in heavy ion collisions contribute to its production. This measurement sets forth a promising new probe of the interplay of suppression and enhancement mechanisms in the production of heavy-flavor mesons in the quark-gluon plasma.

Fragmentation of jets containing a prompt J/ψ meson in PbPb and pp collisions at sNN= 5.02 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Florian Michael Pitters,Navid Rad,J Schieck,R Schöfbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,M Zarucki,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D'Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,I Khvastunov,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,J Zobec,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,W Fang,Q Guo,H Wang,L Yuan

Journal

Physics Letters B

Published Date

2022/2/10

Jets containing a prompt J/ψ meson are studied in lead-lead collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV, using the CMS detector at the LHC. Jets are selected to be in the transverse momentum range of 30< p T< 40 GeV. The J/ψ yield in these jets is evaluated as a function of the jet fragmentation variable z, the ratio of the J/ψ p T to the jet p T. The nuclear modification factor, R AA, is then derived by comparing the yield in lead-lead collisions to the corresponding expectation based on proton-proton data, at the same nucleon-nucleon center-of-mass energy. The suppression of the J/ψ yield shows a dependence on z, indicating that the interaction of the J/ψ with the quark-gluon plasma formed in heavy ion collisions depends on the fragmentation that gives rise to the J/ψ meson.

A new Monte Carlo muon generator for cosmic-ray muon applications

Authors

Nicola Zurlo,Germano Bonomi,Antonietta Donzella,Davide Pagano,A Zenoni,G Zumerle

Journal

POS PROCEEDINGS OF SCIENCE

Published Date

2022

Cosmic rays, thanks to their ubiquity and high penetration capability, have been successfully used in scientific research ever since their discovery. As soon as their knowledge improved, applications in the civil/environmental field were also developed: muon radiography (or muography, based on the flux attenuation) and muon tomography (based on the scattering angle) have been used to study the inner structure of volcanoes, to seek hidden rooms in Egyptian pyramids, to search for heavy metals in containers, and so on. And besides these imaging techniques, cosmic ray muons are also widely used for detector testing and alignment practically in every Nuclear Physics or Particle Physics experiment. Since most of these applications are sensitive to the angular and momentum distribution of cosmic muons, an accurate modelling of these distributions is a key feature for any generation tool conceived to simulate the cosmic muon flux. This can make the generator quite time-consuming, which is a strong limit when one needs to reach high statistics or to study large structures. A new Monte Carlo generator for cosmic-ray muons, named Efficient COsmic MUon Generator (EcoMug for short), especially designed to be fast (≳ 10^5 muons generated per second on a standard machine) without losing accuracy, is presented here. It is written as a header-only C++11 library, ready to be integrated into whatever C++ code, in particular C++ code based on Geant4 simulation tool. By default, EcoMug relies on a simple and effective parametrisation of the experimental data of cosmic ray differential flux at sea level, taken from the literature, but the library is …

Publishing statistical models: Getting the most out of particle physics experiments

Authors

Kyle Cranmer,Sabine Kraml,Harrison Prosper,Philip Bechtle,Florian Urs Bernlochner,Itay M Bloch,Enzo Canonero,Marcin Chrzaszcz,Andrea Coccaro,Jan Conrad,Glen Cowan,Matthew Feickert,Nahuel Ferreiro,Andrew Fowlie,Lukas A Heinrich,Alexander Held,Thomas Kuhr,Anders Kvellestad,Maeve Madigan,Farvah Nazila Mahmoudi,Knut Dundas Morå,Mark S Neubauer,Maurizio Pierini,Juan Rojo,Sezen Sekmen,Luca Silvestrini,Veronica Sanz,Giordon H Stark,Riccardo Torre,Robert Thorne,Wolfgang Waltenberger,Nicholas Wardle,Jonas Wittbrodt

Journal

SciPost Physics

Published Date

2022/1/25

The statistical models used to derive the results of experimental analyses are of incredible scientific value and are essential information for analysis preservation and reuse. In this paper, we make the scientific case for systematically publishing the full statistical models and discuss the technical developments that make this practical. By means of a variety of physics cases--including parton distribution functions, Higgs boson measurements, effective field theory interpretations, direct searches for new physics, heavy flavor physics, direct dark matter detection, world averages, and beyond the Standard Model global fits--we illustrate how detailed information on the statistical modelling can enhance the short-and long-term impact of experimental results.

Study of dijet events with large rapidity separation in proton-proton collisions at = 2.76 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,L Lambrecht,G Mestdach,M Niedziela,Christos Roskas,K Skovpen,TT Tran,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanassov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer

Journal

Journal of High Energy Physics

Published Date

2022/3

The cross sections for inclusive and Mueller-Navelet dijet production are measured as a function of the rapidity separation between the jets in proton-proton collisions at= 2. 76 TeV for jets with transverse momentum p T> 35 GeV and rapidity| y|< 4. 7. Various dijet production cross section ratios are also measured. A veto on additional jets with p T> 20 GeV is introduced to improve the sensitivity to the effects of the Balitsky-Fadin-Kuraev-Lipatov (BFKL) evolution. The measurement is compared with the predictions of various Monte Carlo models based on leading-order and next-to-leading-order calculations including the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi leading-logarithm (LL) parton shower as well as the LL BFKL resummation.

Precision measurement of the boson decay branching fractions in proton-proton collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Physical Review D

Published Date

2022/4/26

The leptonic and inclusive hadronic decay branching fractions of the W boson are measured using proton-proton collision data collected at s= 13 TeV by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of 35.9 fb− 1. Events characterized by the production of one or two W bosons are selected and categorized based on the multiplicity and flavor of reconstructed leptons, the number of jets, and the number of jets identified as originating from the hadronization of b quarks. A binned maximum likelihood estimate of the W boson branching fractions is performed simultaneously in each event category. The measured branching fractions of the W boson decaying into electron, muon, and tau lepton final states are (10.83±0.10)%,(10.94±0.08)%, and (10.77±0.21)%, respectively, consistent with lepton flavor universality for the weak interaction. The average leptonic and inclusive hadronic …

Using Boson Events to Study Parton-Medium Interactions in Pb-Pb Collisions

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Florian Michael Pitters,Navid Rad,J Schieck,R Schöfbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,M Zarucki,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,Illia Khvastunov,Marek Niedziela,Christos Roskas,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wuyckens,J Zobec,GA Alves,G Correia Silva,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov

Journal

Physical review letters

Published Date

2022/3/23

The spectra measurements of charged hadrons produced in the shower of a parton originating in the same hard scattering with a leptonically decaying Z boson are reported in lead-lead nuclei (Pb-Pb) and proton-proton (p p) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV. Both Pb-Pb and p p data sets are recorded by the CMS experiment at the LHC and correspond to an integrated luminosity of 1.7 nb− 1 and 320 pb− 1, respectively. Hadronic collision data with one reconstructed Z boson candidate with the transverse momentum p T> 30 GeV/c are analyzed. The Z boson constrains the initial energy and direction of the associated parton. In heavy ion events, azimuthal angular distributions of charged hadrons with respect to the direction of a Z boson are sensitive to modifications of the in-medium parton shower and medium response. compared to reference data from p p interactions, the results …

Study of Z boson plus jets events using variables sensitive to double-parton scattering in pp collisions at 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,TT Tran,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Mal-Bouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan

Journal

Journal of High Energy Physics

Published Date

2021/10

Double-parton scattering is investigated using events with a Z boson and jets. The Z boson is reconstructed using only the dimuon channel. The measurements are performed with proton-proton collision data recorded by the CMS experiment at the LHC at= 13 TeV, corresponding to an integrated luminosity of 35.9 fb− 1 collected in the year 2016. Differential cross sections of Z+≥ 1 jet and Z+≥ 2 jets are measured with transverse momentum of the jets above 20 GeV and pseudorapidity| η|< 2. 4. Several distributions with sensitivity to double-parton scattering effects are measured as functions of the angle and the transverse momentum imbalance between the Z boson and the jets. The measured distributions are compared with predictions from several event generators with different hadronization models and different parameter settings for multiparton interactions. The measured distributions show a dependence …

Searching for solar KDAR with DUNE

Authors

A Abed Abud,B Abi,R Acciarri,MA Acero,MR Adames,G Adamov,D Adams,M Adinolfi,A Aduszkiewicz,J Aguilar,Z Ahmad,J Ahmed,B Ali-Mohammadzadeh,T Alion,K Allison,S Alonso Monsalve,M Alrashed,C Alt,A Alton,P Amedo,J Anderson,C Andreopoulos,M Andreotti,MP Andrews,F Andrianala,S Andringa,N Anfimov,A Ankowski,M Antoniassi,M Antonova,A Antoshkin,S Antusch,A Aranda-Fernandez,A Ariga,LO Arnold,MA Arroyave,J Asaadi,L Asquith,A Aurisano,V Aushev,D Autiero,M Ayala-Torres,F Azfar,A Back,H Back,JJ Back,C Backhouse,P Baesso,I Bagaturia,L Bagby,N Balashov,S Balasubramanian,P Baldi,B Baller,B Bambah,F Barao,G Barenboim,GJ Barker,W Barkhouse,C Barnes,G Barr,J Barranco Monarca,A Barros,N Barros,JL Barrow,A Basharina-Freshville,A Bashyal,V Basque,E Belchior,JBR Battat,F Battisti,F Bay,JL Bazo Alba,JF Beacom,E Bechetoille,B Behera,L Bellantoni,G Bellettini,V Bellini,O Beltramello,D Belver,N Benekos,C Benitez Montiel,F Bento Neves,J Berger,S Berkman,P Bernardini,RM Berner,H Berns,S Bertolucci,M Betancourt,A Betancur Rodríguez,A Bevan,TJC Bezerra,V Bhatnagar,M Bhattacharjee,S Bhuller,B Bhuyan,S Biagi,J Bian,M Biassoni,K Biery,B Bilki,M Bishai,A Bitadze,A Blake,FDM Blaszczyk,GC Blazey,E Blucher,J Boissevain,S Bolognesi,T Bolton,L Bomben,M Bonesini,M Bongrand,F Bonini,A Booth,C Booth,F Boran,S Bordoni,A Borkum,T Boschi,N Bostan,P Bour,C Bourgeois,SB Boyd,D Boyden,J Bracinik,D Braga,D Brailsford,A Branca,A Brandt,J Bremer,C Brew,E Brianne,SJ Brice,C Brizzolari,C Bromberg,G Brooijmans,J Brooke,A Bross,G Brunetti,M Brunetti,N Buchanan,H Budd,I Butorov,I Cagnoli,D Caiulo,R Calabrese,P Calafiura

Journal

Journal of Cosmology and Astroparticle Physics

Published Date

2021/10/22

The observation of 236MeV muon neutrinos from kaon-decay-at-rest (KDAR) originating in the core of the Sun would provide a unique signature of dark matter annihilation. Since excellent angle and energy reconstruction are necessary to detect this monoenergetic, directional neutrino flux, DUNE with its vast volume and reconstruction capabilities, is a promising candidate for a KDAR neutrino search. In this work, we evaluate the proposed KDAR neutrino search strategies by realistically modeling both neutrino-nucleus interactions and the response of DUNE. We find that, although reconstruction of the neutrino energy and direction is difficult with current techniques in the relevant energy range, the superb energy resolution, angular resolution, and particle identification offered by DUNE can still permit great signal/background discrimination. Moreover, there are non-standard scenarios in which searches at DUNE …

Search for a heavy resonance decaying to a top quark and a W boson at = 13 TeV in the fully hadronic final state

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,E Asilar,Thomas Bergauer,Johannes Brandstetter,Erica Brondolin,Marko Dragicevic,Janos Erö,Martin Flechl,Markus Friedl,Rudolf Fruehwirth,Vasile Mihai Ghete,Christian Hartl,Natascha Hörmann,Josef Hrubec,Manfred Jeitler,Axel König,Ilse Krätschmer,Dietrich Liko,Takashi Matsushita,Ivan Mikulec,Dinyar Rabady,Navid Rad,Babak Rahbaran,Herbert Rohringer,Jochen Schieck,Josef Strauss,Wolfgang Waltenberger,C-E Wulz,Oleg Dvornikov,Vladimir Makarenko,J Suarez Gonzalez,V Zykunov,N Shumeiko,S Alderweireldt,EA De Wolf,X Janssen,J Lauwers,M Van De Klundert,H Van Haevermaet,P Van Mechelen,A Van Spilbeeck,S Abu Zeid,F Blekman,J D’hondt,N Daci,I De Bruyn,K Deroover,S Lowette,S Moortgat,L Moreels,A Olbrechts,Q Python,K Skovpen,S Tavernier,W Van Doninck,P Van Mulders,I Van Parijs,H Brun,B Clerbaux,G De Lentdecker,H Delannoy,G Fasanella,L Favart,R Goldouzian,A Grebenyuk,G Karapostoli,T Lenzi,A Léonard,J Luetic,T Maerschalk,Andrey Marinov,A Randle-Conde,T Seva,C Vander Velde,Pascal Vanlaer,David Vannerom,Ryo Yonamine,Florian Zenoni,Fengwangdong Zhang,Anna Cimmino,Tom Cornelis,Didar Dobur,Alexis Fagot,Muhammad Gul,Illia Khvastunov,Deniz Poyraz,Sinem Salva,Robert Schöfbeck,Michael Tytgat,Ward Van Driessche,Efe Yazgan,Nikolaos Zaganidis,Hamed Bakhshiansohi,Camille Beluffi,Olivier Bondu,Sébastien Brochet,Giacomo Bruno,Adrien Caudron,Simon De Visscher,Christophe Delaere,Martin Delcourt,Brieuc Francois,Andrea Giammanco,Abideh Jafari,Matthias Komm,Georgios Krintiras,Vincent Lemaitre,Alessio Magitteri,Alexandre Mertens,Marco Musich,Krzysztof Piotrzkowski,Loic Quertenmont,Michele Selvaggi,M Vidal Marono,Sébastien Wertz,Nikita Beliy,WL Júnior,Fábio Lúcio Alves,GA Alves,Lucas Brito,Carsten Hensel,Arthur Moraes,Maria Elena Pol,P Rebello Teles,E Chagas,Wagner Carvalho,Jose Chinellato,Analu Custódio,EM Da Costa,Gustavo Gil Da Silveira,Dilson De Jesus Damiao,Carley De Oliveira Martins,S Fonseca De Souza,LM Guativa,Helena Malbouisson,D Matos Figueiredo,C Mora Herrera,Luiz Mundim,Helio Nogima,WL Da Silva,Alberto Santoro,Andre Sznajder,EJ Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,Sudha Ahuja,Cesar Augusto Bernardes,Sunil Dogra

Journal

Journal of High Energy Physics

Published Date

2017/9

A search is presented for massive spin-1 Z′ resonances decaying to a top quark and a heavy vector-like top quark partner T. The search is based on a 2.6 fb− 1 sample of proton-proton collisions at 13 TeV collected with the CMS detector at the LHC. The analysis is optimized for final states in which the T quark decays to a W boson and a bottom quark. The focus is on all-jet final states in which both the W boson and the top quark decay into quarks that evolve into jets. The decay products of the top quark and of the W boson are assumed to be highly Lorentz-boosted and cannot be reconstructed as separate jets, but are instead reconstructed as merged, wide jets. Techniques for the identification of jet substructure and jet flavour are used to distinguish signal from background events. Several models for Z′ bosons decaying to T quarks are excluded at 95% confidence level, with upper limits on the cross section …

Measurements of the Electroweak Diboson Production Cross Sections in Proton-Proton Collisions at Using Leptonic Decays

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,Christos Roskas,A Samalan,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Physical review letters

Published Date

2021/11/2

The first measurements of diboson production cross sections in proton-proton interactions at a center-of-mass energy of 5.02 TeV are reported. They are based on data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 302 pb− 1. Events with two, three, or four charged light leptons (electrons or muons) in the final state are analyzed. The W W, W Z, and Z Z total cross sections are measured as σ W W= 37. 0− 5.2+ 5.5 (stat)− 2.6+ 2.7 (syst) pb, σ W Z= 6. 4− 2.1+ 2.5 (stat)− 0.3+ 0.5 (syst) pb, and σ Z Z= 5. 3− 2.1+ 2.5 (stat)− 0.4+ 0.5 (syst) pb. All measurements are in good agreement with theoretical calculations at combined next-to-next-to-leading order quantum chromodynamics and next-to-leading order electroweak accuracy.

Search for W′ bosons decaying to a top and a bottom quark at s= 13TeV in the hadronic final state

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,J Schieck,R Schöfbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D'Hondt,J De Clercq,M Delcourt,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,G Mestdach,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu

Journal

Physics Letters B

Published Date

2021/9/10

A search is performed for W′ bosons decaying to a top and a bottom quark in the all-hadronic final state, in proton-proton collisions at a center-of-mass energy of 13 TeV. The analyzed data were collected by the CMS experiment between 2016 and 2018 and correspond to an integrated luminosity of 137 fb− 1. Deep neural network algorithms are used to identify the jet initiated by the bottom quark and the jet containing the decay products of the top quark when the W boson from the top quark decays hadronically. No excess above the estimated standard model background is observed. Upper limits on the production cross sections of W′ bosons decaying to a top and a bottom quark are set. Both left-and right-handed W′ bosons with masses below 3.4 TeV are excluded at 95% confidence level, and the most stringent limits to date on W′ bosons decaying to a top and a bottom quark in the all-hadronic final state …

Evidence for WW/WZ vector boson scattering in the decay channel qq produced in association with two jets in proton-proton collisions at 13 TeV

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2112.05259

Published Date

2021/12/10

Evidence is reported for electroweak (EW) vector boson scattering in the decay channel qq of two weak vector bosons WV (V = W or Z), produced in association with two parton jets. The search uses a data set of proton-proton collisions at 13 TeV collected with the CMS detector during 2016-2018 with an integrated luminosity of 138 fb. Events are selected requiring one lepton (electron or muon), moderate missing transverse momentum, two jets with a large pseudorapidity separation and a large dijet invariant mass, and a signature consistent with the hadronic decay of a W/Z boson. The cross section is computed in a fiducial phase space defined at parton level requiring all parton transverse momenta 10 GeV and at least one pair of outgoing partons with invariant mass 100 GeV. The measured and expected EW WV production cross sections are 1.90 pb and 2.23 (scale) 0.05 (PDF) pb, respectively, where PDF is the parton distribution function. The observed EW signal strength is = 0.85 0.12 (stat) (syst), corresponding to a signal significance of 4.4 standard deviations with 5.1 expected, and it is measured keeping the quantum chromodynamics (QCD) associated diboson production fixed to the standard model prediction. This is the first evidence of vector boson scattering in the qq decay channel at LHC. The simultaneous measurement of the EW and QCD associated diboson production agrees with the standard model prediction.

Measurements of

Authors

Albert M Sirunyan,A Tumasyan,W Adam,E Asilar,T Bergauer,J Brandstetter,E Brondolin,M Dragicevic,J Erö,M Flechl,M Friedl,R Frühwirth,VM Ghete,N Hörmann,J Hrubec,M Jeitler,A König,I Krätschmer,D Liko,T Matsushita,I Mikulec,D Rabady,N Rad,H Rohringer,J Schieck,J Strauss,W Waltenberger,C-E Wulz,N Shumeiko,S Alderweireldt,EA De Wolf,X Janssen,J Lauwers,M Van De Klundert,H Van Haevermaet,P Van Mechelen,A Van Spilbeeck,S Abu Zeid,F Blekman,J D'Hondt,I De Bruyn,J De Clercq,K Deroover,S Lowette,S Moortgat,L Moreels,A Olbrechts,Q Python,K Skovpen,S Tavernier,W Van Doninck,P Van Mulders,I Van Parijs,H Brun,B Clerbaux,G De Lentdecker,H Delannoy,G Fasanella,L Favart,R Goldouzian,A Grebenyuk,G Karapostoli,T Lenzi,J Luetic,T Maerschalk,A Marinov,A Randle-conde,T Seva,C Vander Velde,P Vanlaer,D Vannerom,R Yonamine,F Zenoni,F Zhang,A Cimmino,T Cornelis,D Dobur,A Fagot,M Gul,I Khvastunov,D Poyraz,S Salva,R Schöfbeck,M Tytgat,W Van Driessche,W Verbeke,N Zaganidis,H Bakhshiansohi,O Bondu,S Brochet,G Bruno,A Caudron,S De Visscher,C Delaere,M Delcourt,B Francois,A Giammanco,A Jafari,M Komm,G Krintiras,V Lemaitre,A Magitteri,A Mertens,M Musich,K Piotrzkowski,L Quertenmont,M Vidal Marono,S Wertz,N Beliy,WL Aldá Júnior,FL Alves,GA Alves,L Brito,C Hensel,A Moraes,ME Pol,P Rebello Teles,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,A Custódio,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,LM Huertas Guativa,H Malbouisson,C Mora Herrera,L Mundim,H Nogima,A Santoro,A Sznajder,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,S Ahuja,CA Bernardes,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,CS Moon,SF Novaes,Sandra S Padula,D Romero Abad,JC Ruiz Vargas,A Aleksandrov,R Hadjiiska,P Iaydjiev,M Rodozov,S Stoykova

Published Date

2021/9/20

s= 13 TeV with the CMS detector at the LHC. Events with two leptons (e or μ) and at least four reconstructed jets, including at least two identified as b quark jets, in the final state are selected. In the full phase space, the measured ratio is 0. 022±0. 003 (stat)±0. 006 (syst), the cross section σt tbb is 4. 0±0. 6 (stat)±1. 3 (syst) pb and σt tjj is 184±6 (stat)±33 (syst) pb. The measurements are compared with the standard model expectations obtained from a powheg simulation at next-to-leading-order interfaced with pythia.© 2017 The Author. Published by Elsevier BV This is an open access article under the CC BY license

Search for chargino-neutralino production in events with Higgs and W bosons using 137 fb−1 of proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,Christos Roskas,A Samalan,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Journal of High Energy Physics

Published Date

2021/10

A search for electroweak production of supersymmetric (SUSY) particles in final states with one lepton, a Higgs boson decaying to a pair of bottom quarks, and large missing transverse momentum is presented. The search uses data from proton-proton collisions at a center-of-mass energy of 13 TeV collected using the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb− 1. The observed yields are consistent with backgrounds expected from the standard model. The results are interpreted in the context of a simplified SUSY model of chargino-neutralino production, with the chargino decaying to a W boson and the lightest SUSY particle (LSP) and the neutralino decaying to a Higgs boson and the LSP. Charginos and neutralinos with masses up to 820 GeV are excluded at 95% confidence level when the LSP mass is small, and LSPs with mass up to 350 GeV are excluded when the masses of …

Search for top squark production in fully hadronic final states in proton-proton collisions at

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,G Mestdach,M Niedziela,Christos Roskas,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,Y Wang

Journal

Physical Review D

Published Date

2021/9/10

A search for production of the supersymmetric partners of the top quark, top squarks, is presented. The search is based on proton-proton collision events containing multiple jets, no leptons, and large transverse momentum imbalance. The data were collected with the CMS detector at the CERN LHC at a center-of-mass energy of 13 TeV, and correspond to an integrated luminosity of 137 fb− 1. The targeted signal production scenarios are direct and gluino-mediated top squark production, including scenarios in which the top squark and neutralino masses are nearly degenerate. The search utilizes novel algorithms based on deep neural networks that identify hadronically decaying top quarks and W bosons, which are expected in many of the targeted signal models. No statistically significant excess of events is observed relative to the expectation from the standard model, and limits on the top squark production cross …

Springer : Measurement of the inclusive and differential WZ production cross sections, polarization angles, and triple gauge couplings in pp collisions at = 13 TeV

Authors

Armen Tumasyan,Robin Erbacher,Camilo Andres Carrillo Montoya,Dave M Newbold,Wagner Carvalho,Maciej Górski,Danek Kotlinski,Cole Lindsey,Balazs Ujvari,Samila Muthumuni,Ayse Polatoz,Anna Tsatsos,Vinicius Massami Mikuni,Alfredo Gurrola,Basile Vermassen,Anne-Marie Magnan,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Ludivine Ceard,Pierre Van Hove,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Giuseppe Latino,Andrew Hart,Federico Vazzoler,Thomas Ferbel,Sinan Sagir,Changgi Huh,Georgios Tsipolitis,Sanghyun Ko,Dylan Apparu,Soureek Mitra,Jeroen Hegeman,Sergei Slabospitskii,Shamik Ghosh,Mircho Rodozov,Michael Tytgat,Robert Schöfbeck,Luc Pape,James Hirschauer,Andreas Nürnberg,Francisco Yumiceva,Reza Goldouzian,Victor Golovtcov,Ram Krishna Dewanjee,Chiara Rovelli,Eliza Melo Da Costa,Daniele Fasanella,Wei Shi,Robert Hirosky,Santeri Laurila,Zhen Hu,Hans Reithler,Lalit Mohan Pant,Danila Tlisov,Austin Baty,Soumya Mukherjee,Tomas Lindén,Jonathon Langford,Graham Wilson,William Tabb,Furkan Dolek,Attilio Santocchia,Jaehoon Lim,Christos Roskas,Sergio Sánchez Navas,Wolfram Dietrich Zeuner,Hesham El Faham,Jithin Madhusudanan Sreekala,Raphael Granier de Cassagnac,Antoine Lesauvage,Kin Ho Lo,Axel Buchot Perraguin,Andrés Abreu,Ernesto Migliore,Hafeez R Hoorani,Ece Asilar,Stavros Mallios,Edoardo Bossini,Alexander Morton,Vivan Nguyen,Redwan Habibullah,Florian Joel J Bury,Henri Petrow,Jonathan Guiang,Kai-Feng Chen,Matthew Nguyen,David Stickland,Giorgio Apollinari,Michael Oshiro,Damir Lelas,Gillian Kopp,Michel Della Negra,Scarlet Norberg,Amitabh Lath,Dennis Roy,Alexander Pauls,Martijn Mulders,Sandhya Jain,Lorenzo Uplegger,Marina Kolosova,Elena Popova,Jeremi Niedziela,Roberval Walsh,Hugo Becerril Gonzalez,Konstantin Shchablo,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Olmo Cerri,Chia-Ming Kuo,Siqi Yuan,Olena Karacheban,Alicia Calderon,Akshansh Singh,Pawan Kumar Netrakanti,Kevin Black,Thomas Kress,Georgia Karapostoli,Fotios Ptochos,Berkan Kaynak,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,De Hua Zhu,Abhishikth Mallampalli,Maria Cepeda,Mauricio Thiel,J William Gary,Cécile Caillol,Yannik Rath,John Paul Chou,Mohammed Mahmoud,Peicho Petkov,Davide Piccolo,Pawel de Barbaro,Vaia Papadimitriou,Robert White,Nural Akchurin,Qianying Guo,Olaf Behnke,Reham Aly,Vincenzo Innocente,Hyunchul Kim,Attila Racz,Paul Baillon,Viktor Savrin

Journal

JHEP

Published Date

2021/10/21

The associated production of a W and a Z boson is studied in final states with multiple leptons produced in proton-proton (pp) collisions at a centre-of-mass energy of 13TeV using 137fb− 1 of data collected with the CMS detector at the LHC. A measurement of the total inclusive production cross section yields σtot (pp→ WZ)= 50. 6±0. 8 (stat)±1. 5 (syst)±1. 1 (lumi)±0. 5 (theo) pb. Measurements of the fiducial and differential cross sections for several key observables are also performed in all the finalstate lepton flavour and charge compositions with a total of three charged leptons, which can be electrons or muons. All results are compared with theoretical predictions computed up to next-to-next-to-leading order in quantum chromodynamics plus next-to-leading order in electroweak theory and for various sets of parton distribution functions. The results include direct measurements of the charge asymmetry and the W and Z vector boson polarization. The first observation of longitudinally polarized W bosons in WZ production is reported. Anomalous gauge couplings are searched for, leading to new constraints on beyond-the-standard-model contributions to the WZ triple gauge coupling.

Combined searches for the production of supersymmetric top quark partners in proton–proton collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Vladimir Chekhovsky,Aliaksandr Litomin,Vladimir Makarenko,Mohamed Rashad Darwish,Eddi A De Wolf,X Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,N Van Remortel,Freya Blekman,Emil Sørensen Bols,Jorgen D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,Pascal Vanlaer,David Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,Agni Bethani,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Khawla Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal

Journal

The European Physical Journal C

Published Date

2021/11

A combination of searches for top squark pair production using proton–proton collision data at a center-of-mass energy of 13 at the CERN LHC, corresponding to an integrated luminosity of 137 collected by the CMS experiment, is presented. Signatures with at least 2 jets and large missing transverse momentum are categorized into events with 0, 1, or 2 leptons. New results for regions of parameter space where the kinematical properties of top squark pair production and top quark pair production are very similar are presented. Depending on the model, the combined result excludes a top squark mass up to 1325 for a massless neutralino, and a neutralino mass up to 700 for a top squark mass of 1150. Top squarks with masses from 145 to 295, for neutralino masses from 0 to 100, with a mass difference between the top squark and the neutralino in a window of 30 around the mass of …

Measurement of differential production cross sections in the full kinematic range using events from proton-proton collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,Christos Roskas,A Samalan,K Skovpen,Michael Tytgat,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer,C Dozen

Journal

Physical Review D

Published Date

2021/11/30

Measurements of differential and double-differential cross sections of top-quark pair (t t) production are presented in the lepton+ jets channels with a single electron or muon and jets in the final state. The analysis combines for the first time signatures of top quarks with low transverse momentum p T, where the top-quark decay products can be identified as separated jets and isolated leptons, and with high p T, where the decay products are collimated and overlap. The measurements are based on proton-proton collision data at s= 13 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 137 fb− 1. The cross sections are presented at the parton and particle levels, where the latter minimizes extrapolations based on theoretical assumptions. Most of the measured differential cross sections are well described by standard model predictions with the exception of some double …

Springer : Search for heavy resonances decaying to a pair of Lorentz-boosted Higgs bosons in final states with leptons and a bottom quark pair at = 13 TeV

Authors

Armen Tumasyan,Robin Erbacher,Camilo Andres Carrillo Montoya,Wagner Carvalho,Maciej Górski,Danek Kotlinski,Cole Lindsey,Balazs Ujvari,Samila Muthumuni,Ayse Polatoz,Anna Tsatsos,Vinicius Massami Mikuni,Alfredo Gurrola,Basile Vermassen,Anne-Marie Magnan,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Ludivine Ceard,Pierre Van Hove,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Giuseppe Latino,Andrew Hart,Federico Vazzoler,Thomas Ferbel,Sinan Sagir,Changgi Huh,Georgios Tsipolitis,Sanghyun Ko,Dylan Apparu,Soureek Mitra,Sergei Slabospitskii,Shamik Ghosh,Mircho Rodozov,Michael Tytgat,Robert Schöfbeck,James Hirschauer,Andreas Nürnberg,Francisco Yumiceva,Reza Goldouzian,Victor Golovtcov,Ram Krishna Dewanjee,Chiara Rovelli,Eliza Melo Da Costa,Daniele Fasanella,Wei Shi,Robert Hirosky,Santeri Laurila,Zhen Hu,Hans Reithler,Lalit Mohan Pant,Austin Baty,Soumya Mukherjee,Tomas Lindén,Jonathon Langford,Graham Wilson,William Tabb,Furkan Dolek,Attilio Santocchia,Jaehoon Lim,Christos Roskas,Sergio Sánchez Navas,Virgil E Barnes,Wolfram Dietrich Zeuner,Hesham El Faham,Jithin Madhusudanan Sreekala,Raphael Granier de Cassagnac,Antoine Lesauvage,Kin Ho Lo,Axel Buchot Perraguin,Michael Reichmann,Ernesto Migliore,Alexander Zotz,Giacomo Ortona,Paul Schütze,Ece Asilar,Stavros Mallios,Edoardo Bossini,Alexander Morton,Vivan Nguyen,Redwan Habibullah,Henri Petrow,Jonathan Guiang,Kai-Feng Chen,Matthew Nguyen,David Stickland,Giorgio Apollinari,Michael Oshiro,Damir Lelas,Gillian Kopp,Michel Della Negra,Scarlet Norberg,Amitabh Lath,Dennis Roy,Alexander Pauls,Martijn Mulders,Sandhya Jain,Nikolas Pervan,Lorenzo Uplegger,Marina Kolosova,Sunil Bansal,Jeremi Niedziela,Roberval Walsh,Hugo Becerril Gonzalez,Konstantin Shchablo,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Olmo Cerri,Chia-Ming Kuo,Siqi Yuan,Olena Karacheban,Alicia Calderon,Angelo Giacomo Zecchinelli,Pawan Kumar Netrakanti,Kevin Black,Thomas Kress,Georgia Karapostoli,Samuel Lascio,Fotios Ptochos,Berkan Kaynak,Marc M Baarmand,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,De Hua Zhu,Abhishikth Mallampalli,Maria Cepeda,Mauricio Thiel,Cécile Caillol,Yannik Rath,John Paul Chou,Peicho Petkov,John Rotter,Davide Piccolo,Pawel de Barbaro,Vaia Papadimitriou,Robert White,Nural Akchurin,Olaf Behnke,Reham Aly,Vincenzo Innocente,Hyunchul Kim,Attila Racz,Paul Baillon,Viktor Savrin,Jyothsna Rani Komaragiri

Journal

JHEP

Published Date

2021/12/6

A search for new heavy resonances decaying to a pair of Higgs bosons (HH) in proton-proton collisions at a center-of-mass energy of 13TeV is presented. Data were collected with the CMS detector at the LHC in 2016–2018, corresponding to an integrated luminosity of 138 fb− 1. Resonances with a mass between 0.8 and 4.5 TeV are considered using events in which one Higgs boson decays into a bottom quark pair and the other into final states with either one or two charged leptons. Specifically, the single-lepton decay channel HH→ bbWW∗→ bblνqq and the dilepton decay channels HH→ bbWW∗→ bblνlν and HH→ bbττ→ bblννlνν are examined, where l in the final state corresponds to an electron or muon. The signal is extracted using a two-dimensional maximum likelihood fit of the H→ bb jet mass and HH invariant mass distributions. No significant excess above the standard model expectation is observed in data. Model-independent exclusion limits are placed on the product of the cross section and branching fraction for narrow spin-0 and spin-2 massive bosons decaying to HH. The results are also interpreted in the context of radion and bulk graviton production in models with a warped extra spatial dimension. The results provide the most stringent limits to date for X→ HH signatures with final-state leptons and at some masses provide the most sensitive limits of all X→ HH searches.

Observation of the decay B+→ ψ (2S) ϕ (1020) K+ in pp collisions at

Authors

V Khachatryan,AM Sirunyan,A Tumasyan,W Adam,E Asilar,T Bergauer,J Brandstetter,E Brondolin,M Dragicevic,J Erö,M Flechl,M Friedl,R Frühwirth,VM Ghete,C Hartl,N Hörmann,J Hrubec,M Jeitler,A König,I Krätschmer,D Liko,T Matsushita,I Mikulec,D Rabady,N Rad,B Rahbaran,H Rohringer,J Schieck,J Strauss,W Treberer-Treberspurg,W Waltenberger,C-E Wulz,N Shumeiko,S Alderweireldt,EA De Wolf,X Janssen,J Lauwers,M Van De Klundert,H Van Haevermaet,P Van Mechelen,A Van Spilbeeck,S Abu Zeid,F Blekman,J D'Hondt,N Daci,I De Bruyn,K Deroover,N Heracleous,S Lowette,S Moortgat,L Moreels,A Olbrechts,Q Python,S Tavernier,W Van Doninck,P Van Mulders,I Van Parijs,H Brun,C Caillol,B Clerbaux,G De Lentdecker,H Delannoy,G Fasanella,L Favart,R Goldouzian,A Grebenyuk,G Karapostoli,T Lenzi,A Léonard,J Luetic,T Maerschalk,A Marinov,A Randle-conde,T Seva,C Vander Velde,P Vanlaer,R Yonamine,F Zenoni,F Zhang,A Cimmino,T Cornelis,D Dobur,A Fagot,G Garcia,M Gul,D Poyraz,S Salva,R Schöfbeck,M Tytgat,W Van Driessche,E Yazgan,N Zaganidis,H Bakhshiansohi,C Beluffi,O Bondu,S Brochet,G Bruno,A Caudron,S De Visscher,C Delaere,M Delcourt,L Forthomme,B Francois,A Giammanco,A Jafari,P Jez,M Komm,V Lemaitre,A Magitteri,A Mertens,M Musich,C Nuttens,K Piotrzkowski,L Quertenmont,M Selvaggi,M Vidal Marono,S Wertz,N Beliy,WL Aldá Júnior,FL Alves,GA Alves,L Brito,C Hensel,A Moraes,ME Pol,P Rebello Teles,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,A Custódio,EM Da Costa,GG Da Silveira,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,LM Huertas Guativa,H Malbouisson,D Matos Figueiredo,C Mora Herrera,L Mundim,H Nogima,WL Prado Da Silva,A Santoro,A Sznajder,EJ Tonelli Manganote,A Vilela Pereira,S Ahuja,CA Bernardes,S Dogra,TR Fernandez Perez Tomei

Published Date

2021/9/20

The large cross section for b quark production at the CERN LHC and the high luminosity of the accelerator provide the possibility to study rare B meson decays. Recently, several experiments have reported the likely presence of structures in the J/ψφ (1020) mass spectrum from B±→ J/ψφ (1020) K±decays [1–7]. A natural extension of these results is to study the ψ (2S) φ (1020) K±and the ψ (2S) φ (1020) mass spectra. As part of that investigation, we report the first observation of the decay B±→ ψ (2S) φ (1020) K±, with ψ (2S)→ μ+ μ− and φ (1020)→ K+K−. We measure the corresponding branching fraction using data collected at the LHC with the CMS detector in proton–proton (pp) collisions at

Springer : Search for long-lived particles decaying into muon pairs in proton-proton collisions at = 13 TeV collected with a dedicated high-rate data stream

Authors

Armen Tumasyan,Robin Erbacher,Camilo Andres Carrillo Montoya,Wagner Carvalho,Maciej Górski,Danek Kotlinski,Cole Lindsey,Balazs Ujvari,Samila Muthumuni,Ayse Polatoz,Shaaban Khalil,Vinicius Massami Mikuni,Alfredo Gurrola,Basile Vermassen,Anne-Marie Magnan,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Ludivine Ceard,Pierre Van Hove,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Giuseppe Latino,Andrew Hart,Federico Vazzoler,Thomas Ferbel,Sinan Sagir,Changgi Huh,Georgios Tsipolitis,Sanghyun Ko,Dylan Apparu,Soureek Mitra,Sergei Slabospitskii,Shamik Ghosh,Mircho Rodozov,Michael Tytgat,Robert Schöfbeck,Luc Pape,James Hirschauer,Andreas Nürnberg,Francisco Yumiceva,Reza Goldouzian,Victor Golovtcov,Ram Krishna Dewanjee,Chiara Rovelli,Eliza Melo Da Costa,Daniele Fasanella,Wei Shi,Robert Hirosky,Santeri Laurila,Zhen Hu,Hans Reithler,Lalit Mohan Pant,Austin Baty,Soumya Mukherjee,Tomas Lindén,Jonathon Langford,Graham Wilson,William Tabb,Furkan Dolek,Attilio Santocchia,Jaehoon Lim,Christos Roskas,Sergio Sánchez Navas,Virgil E Barnes,Anna Tsatsos,Wolfram Dietrich Zeuner,Hesham El Faham,Jithin Madhusudanan Sreekala,Raphael Granier de Cassagnac,Antoine Lesauvage,Kin Ho Lo,Axel Buchot Perraguin,Michael Reichmann,Ernesto Migliore,Alexander Zotz,Giacomo Ortona,Paul Schütze,Ece Asilar,Edoardo Bossini,Alexander Morton,Vivan Nguyen,Redwan Habibullah,Henri Petrow,Jonathan Guiang,Kai-Feng Chen,Matthew Nguyen,David Stickland,Giorgio Apollinari,Michael Oshiro,Damir Lelas,Gillian Kopp,Michel Della Negra,Scarlet Norberg,Amitabh Lath,Dennis Roy,Alexander Pauls,Martijn Mulders,Sandhya Jain,Nikolas Pervan,Lorenzo Uplegger,Marina Kolosova,Sunil Bansal,Jeremi Niedziela,Roberval Walsh,Hugo Becerril Gonzalez,Konstantin Shchablo,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Olmo Cerri,Chia-Ming Kuo,Siqi Yuan,Olena Karacheban,Alicia Calderon,Angelo Giacomo Zecchinelli,Pawan Kumar Netrakanti,Kevin Black,Thomas Kress,Georgia Karapostoli,Fotios Ptochos,Berkan Kaynak,Marc M Baarmand,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,De Hua Zhu,Abhishikth Mallampalli,Maria Cepeda,Mauricio Thiel,Cécile Caillol,Yannik Rath,John Paul Chou,Mohammed Mahmoud,Peicho Petkov,John Rotter,Davide Piccolo,Pawel de Barbaro,Vaia Papadimitriou,Robert White,Nural Akchurin,Olaf Behnke,Reham Aly,Vincenzo Innocente,Hyunchul Kim,Attila Racz,Paul Baillon,Viktor Savrin

Journal

JHEP

Published Date

2021/12/27

A search for long-lived particles decaying into muon pairs is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment at the LHC in 2017 and 2018, corresponding to an integrated luminosity of 101 fb− 1. The data sets used in this search were collected with a dedicated dimuon trigger stream with low transverse momentum thresholds, recorded at high rate by retaining a reduced amount of information, in order to explore otherwise inaccessible phase space at low dimuon mass and nonzero displacement from the primary interaction vertex. No significant excess of events beyond the standard model expectation is found. Upper limits on branching fractions at 95% confidence level are set on a wide range of mass and lifetime hypotheses in beyond the standard model frameworks with the Higgs boson decaying into a pair of long-lived dark photons, or with a long-lived scalar resonance arising from a decay of a b hadron. The limits are the most stringent to date for substantial regions of the parameter space. These results can be also used to constrain models of displaced dimuons that are not explicitly considered in this paper.

Measurements of the pp → W±γγ and pp → Zγγ cross sections at = 13 TeV and limits on anomalous quartic gauge couplings

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,TT Tran,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan

Journal

Journal of High Energy Physics

Published Date

2021/10

The cross section for W or Z boson production in association with two photons is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV. The data set corresponds to an integrated luminosity of 137 fb− 1 collected by the CMS experiment at the LHC. The W→ ℓν and Z→ ℓℓ decay modes (where ℓ= e, μ) are used to extract the Wγγ and Zγγ cross sections in a phase space defined by electron (muon) with transverse momentum larger than 30 GeV and photon transverse momentum larger than 20 GeV. All leptons and photons are required to have absolute pseudorapidity smaller than 2.5. The measured cross sections in this phase space are σ (Wγγ)=(syst)±0. 08 (PDF+ scale) fb and σ (Zγγ)=(syst)±0. 06 (PDF+ scale) fb. Limits on anomalous quartic gauge couplings are set in the framework of an effective field theory with dimension-8 operators.

The 2021 ECFA detector research and development roadmap

Authors

Anna Colaleo,Leszek Ropelewski,Klaus Dehmelt,Barbara Liberti,Maxim Titov,Joao Veloso,Jocelyn Monroe,Auke-Pieter Colijn,Antonio Ereditato,Ines Gil Botella,Manfred Lindner,Nicolo Cartiglia,Giulio Pellegrini,Daniela Bortoletto,Didier Contardo,Ingrid-Maria Gregor,Gregor Kramberger,Heinz Pernegger,Neville Harnew,Peter Krizan,Ichiro Adachi,Eugenio Nappi,Christian Joram,Hans-Christian Schultz-Coulon,Marcel Demarteau,Michael Doser,Caterina Braggio,Andy Geraci,Peter Graham,Anna Grasselino,John March Russell,Stafford Withington,Roberto Ferrari,Roman Poschl,Martin Aleksa,Dave Barney,Frank Simon,Tommaso Tabarelli De Fatis,Dave Newbold,Francois Vasey,Niko Neufeld,Valerio Re,Christophe de La Taille,Marc Weber,Frank Hartmann,Werner Riegler,Corrado Gargiulo,Filippo Resnati,Herman Ten Kate,Bart Verlaat,Marcel Vos,Johann Collot,Erika Garutti,Richard Brenner,Niels Van Bakel,Claire Gwenlan,Jeff Wiener,Robert Appleby,Phil Allport,Silvia Dalla Torre,Manfred Krammer,Felix Sefkow,Ian Shipsey,Karl Jakobs,Jorgen D’hondt,Lenny Rivkin

Published Date

2021/10/21

IN2P3 CEA CNRS UNIV-LYON1 DSM-IRFU CEA-UPSAY UNIV-PARIS-SACLAY CEA-DRF IP2I UDL IJCLAB CMS IPM PHABIO MANOIR THEORIE COSMOLOGIE MATNUC NEUTRINOS_IP2I ALICE_IP2I ONDES_GRAVITATIONNELLES GS-PHYSIQUE MATICE

First measurement of the cross section for top quark pair production with additional charm jets using dileptonic final states in pp collisions at s= 13TeV

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D'Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,K Lee,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,Illia Khvastunov,G Mestdach,M Niedziela,Christos Roskas,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,Peicho Petkov,A Petrov,T Cheng,W Fang,Q Guo,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer

Journal

Physics Letters B

Published Date

2021/9/10

The first measurement of the inclusive cross section for top quark pairs (t t‾) produced in association with two additional charm jets is presented. The analysis uses the dileptonic final states of t t‾ events produced in proton-proton collisions at a centre-of-mass energy of 13 TeV. The data correspond to an integrated luminosity of 41.5 fb− 1, recorded by the CMS experiment at the LHC. A new charm jet identification algorithm provides input to a neural network that is trained to distinguish among t t‾ events with two additional charm (t t‾ c c‾), bottom (t t‾ b b‾), and light-flavour or gluon (t t‾ LL) jets. By means of a template fitting procedure, the inclusive t t‾ c c‾, t t‾ b b‾, and t t‾ LL cross sections are simultaneously measured, together with their ratios to the inclusive t t‾+ two jets cross section. This provides measurements of the t t‾ c c‾ and t t‾ b b‾ cross sections of 10.1±1.2 (stat)±1.4 (syst) pb and 4.54±0.35 (stat)±0.56 (syst) pb …

Measurement of prompt open-charm production cross sections in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Thomas Bergauer,Marko Dragicevic,Janos Erö,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Florian Michael Pitters,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,V Makarenko,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,I Khvastunov,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wuyckens,J Zobec,GA Alves,G Correia Silva,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov

Journal

Journal of high energy physics

Published Date

2021/11

The production cross sections for prompt open-charm mesons in proton-proton collisions at a center-of-mass energy of 13 TeV are reported. The measurement is performed using a data sample collected by the CMS experiment corresponding to an integrated luminosity of 29 nb− 1. The differential production cross sections of the D∗±, D±, and D 0 mesons are presented in ranges of transverse momentum and pseudorapidity 4< p T< 100 GeV and| η|< 2. 1, respectively. The results are compared to several theoretical calculations and to previous measurements.

The phase-2 upgrade of the CMS tracker

Authors

K Klein,Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Ece Asilar,Thomas Bergauer,Johannes Brandstetter,Erica Brondolin,Marko Dragicevic,Janos Erö,Alberto Escalante del Valle,Martin Flechl,Markus Friedl,Rudolf Fruehwirth,Vasile Mihai Ghete,Johannes Grossmann,Josef Hrubec,Manfred Jeitler,Axel König,Natascha Krammer,Ilse Krätschmer,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Elias Pree,Navid Rad,Herbert Rohringer,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Daniel Spitzbart,Wolfgang Waltenberger,Johannes Wittmann,Claudia-Elisabeth Wulz,Mateusz Zarucki,Vladimir Chekhovsky,Vladimir Mossolov,Juan Suarez Gonzalez,Eddi A de Wolf,Davide Di Croce,Xavier Janssen,Jasper Lauwers,Merijn van de Klundert,Hans van Haevermaet,Pierre van Mechelen,Nick van Remortel,Shimaa Abu Zeid,Freya Blekman,Jorgen d'Hondt,Isabelle de Bruyn,Jarne de Clercq,Kevin Deroover,Giannis Flouris,Denys Lontkovskyi,Steven Lowette,Ivan Marchesini,Seth Moortgat,Lieselotte Moreels,Quentin Python,Kirill Skovpen,Stefaan Tavernier,Walter van Doninck,Petra van Mulders,Isis van Parijs,Diego Beghin,Bugra Bilin,Hugues Brun,Barbara Clerbaux,Gilles de Lentdecker,Hugo Delannoy,Brian Dorney,Giuseppe Fasanella,Laurent Favart,Reza Goldouzian,Anastasia Grebenyuk,Amandeep Kaur Kalsi,Thomas Lenzi,Jelena Luetic,Thierry Maerschalk,Andrey Marinov,Tomislav Seva,Elizabeth Starling,Pascal Vanlaer,David Vannerom,Ryo Yonamine,Florian Zenoni,Tom Cornelis,Didar Dobur,Alexis Fagot,Muhammad Gul,Illia Khvastunov,Deniz Poyraz,Christos Roskas,Sinem Salva Diblen,Michael Tytgat,Willem Verbeke,Nicolas Zaganidis,Hamed Bakhshiansohi,Olivier Bondu,Sébastien Brochet,Giacomo Bruno,Claudio Caputo,Adrien Caudron,Pieter David,Simon de Visscher,Christophe Delaere,Martin Delcourt,Brieuc Francois,Andrea Giammanco,Matthias Komm,Georgios Krintiras,Vincent Lemaitre,Alessio Magitteri,Alexandre Mertens,Marco Musich,Krzysztof Piotrzkowski,Loic Quertenmont,Alessia Saggio,Miguel Vidal Marono,Sébastien Wertz,Joze Zobec,Walter Luiz Aldá Júnior,Fábio Lúcio Alves,Gilvan Alves,Lucas Brito,Marcos Correa Martins,Carsten Hensel,Arthur Moraes,Maria Elena Pol,Patricia Rebello Teles,Ewerton Belchior Batista das Chagas,Wagner Carvalho,Jose Chinellato,Eduardo Coelho,Eliza Melo da Costa,Gustavo Gil da Silveira,Dilson de Jesus Damiao,Sandro Fonseca de Souza,Lina Milena Huertas Guativa,Helena Malbouisson,Miqueias Melo de Almeida,Clemencia Mora Herrera,Luiz Mundim,Helio Nogima,Luis Sanchez Rosas,Alberto Santoro,Andre Sznajder,Mauricio Thiel,Edmilson José Tonelli Manganote,Felipe Torres da Silva de Araujo

Published Date

2021/11/25

This is the final version, approved by the LHCC, of the CMS TDR devoted to the upgrade of the CMS tracker in view of the HL-LHC running.

Search for heavy resonances decaying to Z()V(qq') in proton-proton collisions at 13 TeV

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2109.08268

Published Date

2021/9/17

A search is presented for heavy bosons decaying to Z()V(qq'), where V can be a W or a Z boson. A sample of proton-proton collision data at 13 TeV was collected by the CMS experiment during 2016-2018. The data correspond to an integrated luminosity of 137 fb. The event categorization is based on the presence of high-momentum jets in the forward region to identify production through weak vector boson fusion. Additional categorization uses jet substructure techniques and the presence of large missing transverse momentum to identify W and Z bosons decaying to quarks and neutrinos, respectively. The dominant standard model backgrounds are estimated using data taken from control regions. The results are interpreted in terms of radion, W' boson, and graviton models, under the assumption that these bosons are produced via gluon-gluon fusion, Drell-Yan, or weak vector boson fusion processes. No evidence is found for physics beyond the standard model. Upper limits are set at 95% confidence level on various types of hypothetical new bosons. Observed (expected) exclusion limits on the masses of these bosons range from 1.2 to 4.0 (1.1 to 3.7) TeV.

Measurements of the associated production of a W boson and a charm quark in proton-proton collisions at 8 TeV

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2112.00895

Published Date

2021/12/2

Measurements of the associated production of a W boson and a charm (c) quark in proton-proton collisions at a centre-of-mass energy of 8 TeV are reported. The analysis uses a data sample corresponding to a total integrated luminosity of 19.7 fb collected by the CMS detector at the LHC. The W bosons are identified through their leptonic decays to an electron or a muon, and a neutrino. Charm quark jets are selected using distinctive signatures of charm hadron decays. The product of the cross section and branching fraction (pp W + c + X) (W ), where = e or , and the cross section ratio (pp W + c + X) / (pp W + + X) are measured inclusively and differentially as functions of the pseudorapidity and of the transverse momentum of the lepton from the W boson decay. The results are compared with theoretical predictions. The impact of these measurements on the determination of the strange quark distribution is assessed.

Higgs and top physics reconstruction challenges and opportunities at FCC-ee

Authors

Patrizia Azzi,Loukas Gouskos,Michele Selvaggi,Frank Simon

Published Date

2021/12/18

The Higgs bosons and the top quark decay into rich and diverse final states, containing both light and heavy quarks, gluons, photons as well as W and Z bosons. This article reviews the challenges involved in reconstructing Higgs and top events at the FCC-ee and identifies the areas where novel developments are needed. The precise identification and reconstruction of these final states at the FCC-ee rely on the capability of the detector to provide excellent flavour tagging, jet energy and angular resolution, and global kinematic event reconstruction. Excellent flavour tagging performance requires low-material vertex and tracking detectors, and advanced machine learning techniques as successfully employed in LHC experiments. In addition, the Z pole run will provide abundant samples of heavy flavour partons that can be used for calibration of the tagging algorithms. For the reconstruction of jets, leptons, and …

Deep underground neutrino experiment (DUNE) near detector conceptual design report

Authors

Adam Abed Abud,Babak Abi,Roberto Acciarri,Mario Acero,Giorge Adamov,David Adams,Marco Adinolfi,Antoni Aduszkiewicz,Zubayer Ahmad,Jhanzeb Ahmed,Tyler Alion,Saul Alonso Monsalve,Munerah Alrashed,Christoph Alt,Andrew Alton,Pablo Amedo,John Anderson,Costas Andreopoulos,Michael P Andrews,Fenompanirina Andrianala,Sofia Andringa,Nikolay Anfimov,Artur Ankowski,Maria Antonova,Stefan Antusch,Alfredo Aranda-Fernandez,Akitaka Ariga,Lukas Arnold,Manuel Arroyave,Jonathan Asaadi,Adam Aurisano,Vladimir Aushev,Dario Autiero,Marco Alberto Ayala-Torres,Farrukh Azfar,Henning Back,John Back,Chris Backhouse,Paolo Baesso,Iuri Bagaturia,Linda Bagby,Supraja Balasubramanian,Pierre Baldi,Bruce Baller,Bindu Bambah,Fernando Barao,Gabriela Barenboim,Gary J Barker,Wayne Barkhouse,Christopher Barnes,Giles Barr,Juan Barranco Monarca,Nuno Barros,Joshua Barrow,Anastasia Basharina-Freshville,Amit Bashyal,Vincent Basque,Ewerton Batista das Chagas,James Battat,Federico Battisti,Fatih Bay,José Luis Bazo Alba,John Beacom,Edouard Bechetoille,Biswaranjan Behera,Leo Bellantoni,Giorgio Bellettini,Vincenzo Bellini,Olga Beltramello,Daniel Belver,Nektarios Benekos,Francisco Bento Neves,Sophie Berkman,Paolo Bernardini,Roman Berner,Hans-Gerd Berns,Sergio Bertolucci,Minerba Betancourt,Amalia Betancur Rodríguez,Maharnab Bhattacharjee,Shyam Bhuller,Bipul Bhuyan,Simone Biagi,Jianming Bian,Matteo Biassoni,Kurt Biery,Burak Bilki,Mary Bishai,Alexander Bitadze,Andrew Blake,Flor de Maria Blaszczyk,Gerald C Blazey,Edward Blucher,Jan Boissevain,Sara Bolognesi,Timothy Bolton,Luca Bomben,Maurizio Bonesini,Mathieu Bongrand,Filiberto Bonini,Alexander Booth,Chris Booth,Stefania Bordoni,Aran Borkum,Tommaso Boschi,Nilay Bostan,Petr Bour,Christian Bourgeois,Steve B Boyd,Daniel Boyden,Juraj Bracinik,Davide Braga,Dominic Brailsford,Andrew Brandt,Johan Bremer,Christopher Brew,Eldwan Brianne,Stephen Brice,Claudia Brizzolari,Carl Bromberg,Gustaaf Brooijmans,Jim Brooke,Alan Bross,Giulia Brunetti,Maria Brunetti,Norman Buchanan,Howard Budd,Davide Caiulo,Paolo Calafiura,Jacob Calcutt,Marius Calin,Steven Calvez,Enrique Calvo,Alessio Caminata,Mario Campanelli,Kerem Cankocak,David Caratelli,Gabriella Carini,Bruno Carlus,Paolo Carniti,Ivan Caro Terrazas,Hector Carranza,Thomas Carroll,Javier Castaño Forero,Andrés Castillo,Cesar Castromonte,Erika Catano-Mur,Carla Cattadori,Fabien Cavalier,Flavio Cavanna

Published Date

2021/4/27

The Deep Underground Neutrino Experiment (DUNE) is an international, world-class experiment aimed at exploring fundamental questions about the universe that are at the forefront of astrophysics and particle physics research. DUNE will study questions pertaining to the preponderance of matter over antimatter in the early universe, the dynamics of supernovae, the subtleties of neutrino interaction physics, and a number of beyond the Standard Model topics accessible in a powerful neutrino beam. A critical component of the DUNE physics program involves the study of changes in a powerful beam of neutrinos, i.e., neutrino oscillations, as the neutrinos propagate a long distance. The experiment consists of a near detector, sited close to the source of the beam, and a far detector, sited along the beam at a large distance. This document, the DUNE Near Detector Conceptual Design Report (CDR), describes the design of the DUNE near detector and the science program that drives the design and technology choices. The goals and requirements underlying the design, along with projected performance are given. It serves as a starting point for a more detailed design that will be described in future documents.

EcoMug: an Efficient COsmic MUon Generator for cosmic-ray muon applications

Authors

D Pagano,G Bonomi,A Donzella,A Zenoni,G Zumerle,N Zurlo

Journal

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Published Date

2021/10/21

Applications of cosmic-ray (CR) muons have grown in numbers in the last decade. Measurements of flux attenuation (radiography) and scattering angles (tomography) of CR muons have been successfully applied to the inspection or monitoring of large natural and civil structures, to the search for heavy metals in container and trucks, to the control of nuclear wastes, and much more. In the present work, a new Monte Carlo generator of CR muons, called EcoMug and specifically designed for muon radiography and tomography applications, is presented. It is a header-only C++11 library, based on a parametrization of experimental data. Unlike other tools, EcoMug gives the possibility of generating from different surfaces (plane, cylinder and half-sphere), while keeping the correct angular and momentum distribution of generated tracks. For example, this flexibility allows for a very efficient generation of nearly horizontal …

Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,M Vit,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

Journal of High Energy Physics

Published Date

2021/11

A search is presented for new particles produced at the LHC in proton-proton collisions at= 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb− 1, collected in 2017–2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb− 1, collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on …

Performance of a triple-GEM demonstrator in pp collisions at the CMS detector

Authors

M Abbas,M Abbrescia,H Abdalla,A Abdelalim,S AbuZeid,A Agapitos,A Ahmad,A Ahmed,W Ahmed,C Aimè,C Aruta,I Asghar,P Aspell,C Avila,J Babbar,Y Ban,R Band,S Bansal,L Benussi,V Bhatnagar,M Bianco,S Bianco,K Black,L Borgonovi,O Bouhali,A Braghieri,S Braibant,S Butalla,S Calzaferri,M Caponero,J Carlson,F Cassese,N Cavallo,SS Chauhan,S Colafranceschi,A Colaleo,A Conde Garcia,M Dalchenko,A De Iorio,G De Lentdecker,D Dell Olio,G De Robertis,W Dharmaratna,S Dildick,B Dorney,R Erbacher,F Fabozzi,F Fallavollita,A Ferraro,D Fiorina,E Fontanesi,M Franco,C Galloni,P Giacomelli,S Gigli,J Gilmore,M Gola,M Gruchala,A Gutierrez,R Hadjiiska,T Hakkarainen,J Hauser,K Hoepfner,M Hohlmann,H Hoorani,T Huang,P Iaydjiev,A Irshad,A Iorio,F Ivone,W Jang,J Jaramillo,A Juodagalvis,E Juska,B Kailasapathy,T Kamon,Y Kang,P Karchin,A Kaur,H Kaur,H Keller,H Kim,J Kim,S Kim,B Ko,A Kumar,S Kumar,N Lacalamita,JSH Lee,A Levin,Q Li,F Licciulli,L Lista,K Liyanage,F Loddo,M Luhach,M Maggi,Y Maghrbi,N Majumdar,K Malagalage,S Malhotra,S Martiradonna,C McLean,J Merlin,M Misheva,G Mocellin,L Moureaux,A Muhammad,S Muhammad,S Mukhopadhyay,M Naimuddin,S Nuzzo,R Oliveira,P Paolucci,IC Park,L Passamonti,G Passeggio,A Peck,A Pellecchia,N Perera,L Petre,H Petrow,D Piccolo,D Pierluigi,G Raffone,M Rahmani,F Ramirez,A Ranieri,G Rashevski,B Regnery,M Ressegotti,C Riccardi,M Rodozov,E Romano,C Roskas,B Rossi,P Rout,JD Ruiz,A Russo,A Safonov,AK Sahota,D Saltzberg,G Saviano,A Shah,A Sharma,R Sharma,T Sheokand,M Shopova,FM Simone,J Singh

Journal

Journal of Instrumentation

Published Date

2021/11/12

After the Phase-2 high-luminosity upgrade to the Large Hadron Collider (LHC), the collision rate and therefore the background rate will significantly increase, particularly in the high η region. To improve both the tracking and triggering of muons, the Compact Muon Solenoid (CMS) Collaboration plans to install triple-layer Gas Electron Multiplier (GEM) detectors in the CMS muon endcaps. Demonstrator GEM detectors were installed in CMS during 2017 to gain operational experience and perform a preliminary investigation of detector performance. We present the results of triple-GEM detector performance studies performed in situ during normal CMS and LHC operations in 2018. The distribution of cluster size and the efficiency to reconstruct high p T muons in proton-proton collisions are presented as well as the measurement of the environmental background rate to produce hits in the GEM detector.

Measurement of the top quark mass using events with a single reconstructed top quark in pp collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Alda Junior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Mal-Bouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Journal of high energy physics

Published Date

2021/12

A measurement of the top quark mass is performed using a data sample enriched with single top quark events produced in the t channel. The study is based on proton-proton collision data, corresponding to an integrated luminosity of 35.9 fb− 1, recorded at= 13 TeV by the CMS experiment at the LHC in 2016. Candidate events are selected by requiring an isolated high-momentum lepton (muon or electron) and exactly two jets, of which one is identified as originating from a bottom quark. Multivariate discriminants are designed to separate the signal from the background. Optimized thresholds are placed on the discriminant outputs to obtain an event sample with high signal purity. The top quark mass is found to be GeV, where the uncertainty includes both the statistical and systematic components, reaching sub-GeV precision for the first time in this event topology. The masses of the top quark and antiquark are …

Observation of Forward Neutron Multiplicity Dependence of Dimuon Acoplanarity in Ultraperipheral Pb-Pb Collisions at

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic,János Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Florian Michael Pitters,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,Illia Khvastunov,Marek Niedziela,Christos Roskas,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wuyckens,J Zobec,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,W Fang,Q Guo,H Wang

Journal

Physical review letters

Published Date

2021/9/17

The first measurement of the dependence of γ γ→ μ+ μ− production on the multiplicity of neutrons emitted very close to the beam direction in ultraperipheral heavy ion collisions is reported. Data for lead-lead interactions at s N N= 5.02 TeV, with an integrated luminosity of approximately 1.5 nb− 1, are collected using the CMS detector at the LHC. The azimuthal correlations between the two muons in the invariant mass region 8< m μ μ< 60 GeV are extracted for events including 0, 1, or at least 2 neutrons detected in the forward pseudorapidity range| η|> 8.3. The back-to-back correlation structure from leading-order photon-photon scattering is found to be significantly broader for events with a larger number of emitted neutrons from each nucleus, corresponding to interactions with a smaller impact parameter. This observation provides a data-driven demonstration that the average transverse momentum of photons …

Benchmarking LHC background particle simulation with the CMS triple-GEM detector

Authors

M Abbas,M Abbrescia,H Abdalla,A Abdelalim,S AbuZeid,A Agapitos,A Ahmad,A Ahmed,W Ahmed,C Aimè,C Aruta,I Asghar,P Aspell,C Avila,I Azhgirey,J Babbar,Y Ban,R Band,S Bansal,L Benussi,V Bhatnagar,M Bianco,S Bianco,K Black,L Borgonovi,O Bouhali,D Bozzato,A Braghieri,S Braibant,S Butalla,S Calzaferri,M Caponero,F Cassese,A Castaneda,N Cavallo,SS Chauhan,A Colaleo,A Conde Garcia,M Dalchenko,A De Iorio,G De Lentdecker,D Dell Olio,G De Robertis,W Dharmaratna,S Dildick,B Dorney,R Erbacher,F Fabozzi,F Fallavollita,A Ferraro,D Fiorina,E Fontanesi,M Franco,C Galloni,D Gancarcik,P Giacomelli,S Gigli,J Gilmore,M Gola,M Gruchala,A Gutierrez,R Hadjiiska,T Hakkarainen,J Hauser,K Hoepfner,M Hohlmann,H Hoorani,T Huang,P Iaydjiev,A Irshad,A Iorio,F Ivone,W Jang,J Jaramillo,V Jha,A Juodagalvis,E Juska,B Kailasapathy,T Kamon,Y Kang,P Karchin,A Kaur,H Kaur,H Keller,H Kim,J Kim,S Kim,B Ko,A Kumar,S Kumar,H Kumawat,I Kurochkin,N Lacalamita,JSH Lee,A Levin,Q Li,F Licciulli,L Lista,K Liyanage,F Loddo,M Luhach,M Maggi,Y Maghrbi,N Majumdar,K Malagalage,S Malhotra,S Mallows,S Martiradonna,N Mccoll,C McLean,J Merlin,M Misheva,D Mishra,G Mocellin,L Moureaux,A Muhammad,S Muhammad,S Mukhopadhyay,M Naimuddin,P Netrakanti,S Nuzzo,R Oliveira,L Pant,P Paolucci,IC Park,L Passamonti,G Passeggio,A Peck,A Pellecchia,N Perera,L Petre,H Petrow,D Piccolo,D Pierluigi,G Raffone,M Rahmani,F Ramirez,A Ranieri,G Rashevski,B Regnery,M Ressegotti,A Riabchikova,C Riccardi,M Rodozov,E Romano,C Roskas,B Rossi,P Rout,D Roy,JD Ruiz

Journal

Journal of Instrumentation

Published Date

2021/12/16

In 2018, a system of large-size triple-GEM demonstrator chambers was installed in the CMS experiment at CERN's Large Hadron Collider (LHC). The demonstrator's design mimicks that of the final detector, installed for Run-3. A successful Monte Carlo (MC) simulation of the collision-induced background hit rate in this system in proton-proton collisions at 13 TeV is presented. The MC predictions are compared to CMS measurements recorded at an instantaneous luminosity of 1.5× 10 34 cm-2 s-1. The simulation framework uses a combination of the FLUKA and GEANT4 packages. FLUKA simulates the radiation environment around the GE1/1 chambers. The particle flux by FLUKA covers energy spectra ranging from 10-11 to 10 4 MeV for neutrons, 10-3 to 10 4 MeV for γ's, 10-2 to 10 4 MeV for e±, and 10-1 to 10 4 MeV for charged hadrons. GEANT4 provides an estimate of the detector response (sensitivity) based …

Measurement of double-parton scattering in inclusive production of four jets with low transverse momentum in proton-proton collisions at = 13 TeV

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2109.13822

Published Date

2021/9/28

A measurement of inclusive four-jet production in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The transverse momenta of jets within $\lvert\eta\rvert$ 4.7 reach down to 35, 30, 25, and 20 GeV for the first-, second-, third-, and fourth-leading jet, respectively. Differential cross sections are measured as functions of the jet transverse momentum, jet pseudorapidity, and several other observables that describe the angular correlations between the jets. The measured distributions show sensitivity to different aspects of the underlying event, parton shower, and matrix element calculations. In particular, the interplay between angular correlations caused by parton shower and double-parton scattering contributions is shown to be important. The double-parton scattering contribution is extracted by means of a template fit to the data, using distributions for single-parton scattering obtained from Monte Carlo event generators and a double-parton scattering distribution constructed from inclusive single-jet events in data. The effective double-parton scattering cross section is calculated and discussed in view of previous measurements and of its dependence on the models used to describe the single-parton scattering background.

Measurement of the electroweak production of and two jets in proton-proton collisions at and constraints on anomalous quartic gauge couplings

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,T Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,Christos Roskas,A Samalan,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer

Journal

Physical Review D

Published Date

2021/10/5

The first observation of the electroweak (EW) production of a Z boson, a photon, and two forward jets (Z γ jj) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. A data set corresponding to an integrated luminosity of 137 fb− 1, collected by the CMS experiment at the LHC in 2016–2018 is used. The measured fiducial cross section for EW Z γ jj is σ EW= 5.21±0.52 (stat)±0.56 (syst) fb= 5.21±0.76 fb. Single-differential cross sections in photon, leading lepton, and leading jet transverse momenta, and double-differential cross sections in m jj and| Δ η jj| are also measured. Exclusion limits on anomalous quartic gauge couplings are derived at 95% confidence level in terms of the effective field theory operators M 0 to M 5, M 7, T 0 to T 2, and T 5 to T 9.

Search for a heavy Higgs boson decaying into two lighter Higgs bosons in the ττbb final state at 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Journal of High Energy Physics

Published Date

2021/11

A search for a heavy Higgs boson H decaying into the observed Higgs boson h with a mass of 125 GeV and another Higgs boson h S is presented. The h and h S bosons are required to decay into a pair of tau leptons and a pair of b quarks, respectively. The search uses a sample of proton-proton collisions collected with the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 137 fb− 1. Mass ranges of 240–3000 GeV for m H and 60–2800 GeV for are explored in the search. No signal has been observed. Model independent 95% confidence level upper limits on the product of the production cross section and the branching fractions of the signal process are set with a sensitivity ranging from 125 fb (for m H= 240 GeV) to 2. 7 fb (for m H= 1000 GeV). These limits are compared to maximally allowed products of the production cross section and the branching fractions of …

Observation of triple J/ meson production in proton-proton collisions at 13 TeV

Authors

Armen Tumasyan,Robin Erbacher,Camilo Andres Carrillo Montoya,Dave M Newbold,Wagner Carvalho,Maciej Górski,Danek Kotlinski,Cole Lindsey,Balazs Ujvari,Samila Muthumuni,Ayse Polatoz,Anna Tsatsos,Vinicius Massami Mikuni,Alfredo Gurrola,Basile Vermassen,Anne-Marie Magnan,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Ludivine Ceard,Pierre Van Hove,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Giuseppe Latino,Andrew Hart,Federico Vazzoler,Thomas Ferbel,Sinan Sagir,Changgi Huh,Georgios Tsipolitis,Sanghyun Ko,Dylan Apparu,Soureek Mitra,Sergei Slabospitskii,Shamik Ghosh,Mircho Rodozov,Michael Tytgat,Robert Schöfbeck,James Hirschauer,Andreas Nürnberg,Francisco Yumiceva,Reza Goldouzian,Victor Golovtcov,Ram Krishna Dewanjee,Chiara Rovelli,Eliza Melo Da Costa,Daniele Fasanella,Wei Shi,Robert Hirosky,Santeri Laurila,Zhen Hu,Hans Reithler,Lalit Mohan Pant,Austin Baty,Soumya Mukherjee,Tomas Lindén,Jonathon Langford,Graham Wilson,William Tabb,Furkan Dolek,Attilio Santocchia,Jaehoon Lim,Christos Roskas,Sergio Sánchez Navas,Wolfram Dietrich Zeuner,Hesham El Faham,Jithin Madhusudanan Sreekala,Raphael Granier de Cassagnac,Antoine Lesauvage,Kin Ho Lo,Axel Buchot Perraguin,Michael Reichmann,Ernesto Migliore,Alexander Zotz,Hafeez R Hoorani,Paul Schütze,Ece Asilar,Edoardo Bossini,Alexander Morton,Vivan Nguyen,Redwan Habibullah,Florian Joel J Bury,Henri Petrow,Jonathan Guiang,Kai-Feng Chen,Matthew Nguyen,David Stickland,Giorgio Apollinari,Michael Oshiro,Damir Lelas,Gillian Kopp,Michel Della Negra,Scarlet Norberg,Amitabh Lath,Dennis Roy,Alexander Pauls,Martijn Mulders,Sandhya Jain,Nikolas Pervan,Lorenzo Uplegger,Marina Kolosova,Sunil Bansal,Jeremi Niedziela,Roberval Walsh,Hugo Becerril Gonzalez,Konstantin Shchablo,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Olmo Cerri,Chia-Ming Kuo,Siqi Yuan,Olena Karacheban,Alicia Calderon,Angelo Giacomo Zecchinelli,Pawan Kumar Netrakanti,Kevin Black,Thomas Kress,Georgia Karapostoli,Samuel Lascio,Fotios Ptochos,Berkan Kaynak,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,De Hua Zhu,Abhishikth Mallampalli,Maria Cepeda,Mauricio Thiel,J William Gary,Cécile Caillol,Yannik Rath,John Paul Chou,Mohammed Mahmoud,Peicho Petkov,John Rotter,Davide Piccolo,Pawel de Barbaro,Vaia Papadimitriou,Robert White,Nural Akchurin,Olaf Behnke,Reham Aly,Vincenzo Innocente,Hyunchul Kim,Attila Racz,Paul Baillon,Viktor Savrin

Published Date

2021/11/9

Protons consist of three valence quarks, two up-quarks and one down-quark, held together by gluons and a sea of quark-antiquark pairs. Collectively, quarks and gluons are referred to as partons. In a proton-proton collision, typically only one parton of each proton undergoes a hard scattering–referred to as single-parton scattering–leaving the remainder of each proton only slightly disturbed. Here, we report the study of double-and triple-parton scatterings through the simultaneous production of three J/ψ mesons, which consist of a charm quark-antiquark pair, in proton-proton collisions recorded with the CMS experiment at the Large Hadron Collider. We observed this process–reconstructed through the decays of J/ψ mesons into pairs of oppositely charged muons–with a statistical significance above five standard deviations. We measured the inclusive fiducial cross section to be 272+141

Probing effective field theory operators in the associated production of top quarks with a Z boson in multilepton final states at = 13 TeV

Authors

N Tonon,H Aarup Petersen,M Aldaya Martin,P Asmuss,S Baxter,M Bayatmakou,O Behnke,A Bermúdez Martínez,S Bhattacharya,AA Bin Anuar,K Borras,D Brunner,A Campbell,A Cardini,C Cheng,F Colombina,S Consuegra Rodríguez,G Correia Silva,V Danilov,M De Silva,L Didukh,G Eckerlin,D Eckstein,LI Estevez Banos,O Filatov,E Gallo,A Geiser,A Giraldi,A Grohsjean,M Guthoff,A Jafari,NZ Jomhari,H Jung,A Kasem,M Kasemann,H Kaveh,C Kleinwort,D Kruecker,W Lange,J Lidrych,K Lipka,W Lohmann,R Mankel,I-A Melzer-Pellmann,M Mendizabal Morentin,J Metwally,AB Meyer,M Meyer,J Mnich,A Mussgiller,Y Otarid,D Pérez Adán,D Pitzl,A Raspereza,B Ribeiro Lopes,J Rübenach,A Saggio,A Saibel,M Savitskyi,M Scham,V Scheurer,P Schuetze,C Schwanenberger,A Singh,RE Sosa Ricardo,D Stafford,M Van De Klundert,R Walsh,D Walter,Y Wen,K Wichmann,L Wiens,C Wissing,S Wuchterl,A Tumasyan,W Adam,JW Andrejkovic,T Bergauer,S Chatterjee,M Dragicevic,A Escalante Del Valle,R Frühwirth,M Jeitler,N Krammer,L Lechner,D Liko,I Mikulec,P Paulitsch,FM Pitters,J Schieck,R Schöfbeck,D Schwarz,S Templ,W Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,T Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,M Vit,A Benecke

Journal

Journal of High Energy Physics

Published Date

2021/12

A search for new top quark interactions is performed within the framework of an effective field theory using the associated production of either one or two top quarks with a Z boson in multilepton final states. The data sample corresponds to an integrated luminosity of 138 fb− 1 of proton-proton collisions at= 13 TeV collected by the CMS experiment at the LHC. Five dimension-six operators modifying the electroweak interactions of the top quark are considered. Novel machine-learning techniques are used to enhance the sensitivity to effects arising from these operators. Distributions used for the signal extraction are parameterized in terms of Wilson coefficients describing the interaction strengths of the operators. All five Wilson coefficients are simultaneously fit to data and 95% confidence level intervals are computed. All results are consistent with the SM expectations.

Constraints on anomalous Higgs boson couplings to vector bosons and fermions in its production and decay using the four-lepton final state

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2104.12152

Published Date

2021/4/25

Studies of CP violation and anomalous couplings of the Higgs boson to vector bosons and fermions are presented. The data were acquired by the CMS experiment at the LHC and correspond to an integrated luminosity of 137 fb-1 at a proton-proton collision energy of 13 TeV. The kinematic effects in the Higgs boson's four-lepton decay H→4ℓ and its production in association with two jets, a vector boson, or top quarks are analyzed, using a full detector simulation and matrix element techniques to identify the production mechanisms and to increase sensitivity to the tensor structure of the Higgs boson interactions. A simultaneous measurement is performed of up to five Higgs boson couplings to electroweak vector bosons (HVV), two couplings to gluons (Hgg), and two couplings to top quarks (Htt). The CP measurement in the Htt interaction is combined with the recent measurement in the H→γγ channel. The results are presented in the framework of anomalous couplings and are also interpreted in the framework of effective field theory, including the first study of CP properties of the Htt and effective Hgg couplings from a simultaneous analysis of the gluon fusion and top-associated processes. The results are consistent with the standard model of particle physics.

Tracking Detectors

Authors

Rudolf Frühwirth,Are Strandlie,Rudolf Frühwirth,Are Strandlie

Journal

Pattern Recognition, Tracking and Vertex Reconstruction in Particle Detectors

Published Date

2021

The chapter gives an overview of particle detectors, with the emphasis on tracking detectors. The working principles and the calibration of gaseous, semiconductor, and fiber detectors are explained, followed by a brief review of detector alignment. As an illustration, the tracking systems of the four experiments at the LHC and two non-LHC experiments, Belle II and CBM, are presented.

Measurement of the differential inclusive B+ hadron cross sections in pp collisions at

Authors

V Khachatryan,AM Sirunyan,A Tumasyan,W Adam,E Asilar,T Bergauer,J Brandstetter,E Brondolin,M Dragicevic,J Erö,M Flechl,M Friedl,R Frühwirth,VM Ghete,C Hartl,N Hörmann,J Hrubec,M Jeitler,A König,I Krätschmer,D Liko,T Matsushita,I Mikulec,D Rabady,N Rad,B Rahbaran,H Rohringer,J Schieck,J Strauss,W Treberer-Treberspurg,W Waltenberger,C-E Wulz,N Shumeiko,S Alderweireldt,EA De Wolf,X Janssen,J Lauwers,M Van De Klundert,H Van Haevermaet,P Van Mechelen,A Van Spilbeeck,S Abu Zeid,F Blekman,J D'Hondt,N Daci,I De Bruyn,K Deroover,N Heracleous,S Lowette,S Moortgat,L Moreels,A Olbrechts,Q Python,S Tavernier,W Van Doninck,P Van Mulders,I Van Parijs,H Brun,C Caillol,B Clerbaux,G De Lentdecker,H Delannoy,G Fasanella,L Favart,R Goldouzian,A Grebenyuk,G Karapostoli,T Lenzi,A Léonard,J Luetic,T Maerschalk,A Marinov,A Randle-conde,T Seva,C Vander Velde,P Vanlaer,R Yonamine,F Zenoni,F Zhang,A Cimmino,T Cornelis,D Dobur,A Fagot,G Garcia,M Gul,D Poyraz,S Salva,R Schöfbeck,A Sharma,M Tytgat,W Van Driessche,E Yazgan,N Zaganidis,H Bakhshiansohi,C Beluffi,O Bondu,S Brochet,G Bruno,A Caudron,S De Visscher,C Delaere,M Delcourt,B Francois,A Giammanco,A Jafari,P Jez,M Komm,V Lemaitre,A Magitteri,A Mertens,M Musich,C Nuttens,K Piotrzkowski,L Quertenmont,M Selvaggi,M Vidal Marono,S Wertz,N Beliy,WL Aldá Júnior,FL Alves,GA Alves,L Brito,C Hensel,A Moraes,ME Pol,P Rebello Teles,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,A Custódio,EM Da Costa,GG Da Silveira,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,LM Huertas Guativa,H Malbouisson,D Matos Figueiredo,C Mora Herrera,L Mundim,H Nogima,WL Prado Da Silva,A Santoro,A Sznajder,EJ Tonelli Manganote,A Vilela Pereira,S Ahuja,CA Bernardes,S Dogra,TR Fernandez Perez Tomei

Published Date

2021/9/20

Measuring the production of hadrons that contain b quarks plays an important role in testing quantum chromodynamics (QCD). Such studies have been carried out by several experiments, including UA1 [1, 2] at CERN, as well as CDF [3–6] and D0 [7, 8] at Fermilab. The most recent measurements are from the ATLAS [9, 10], CMS [11–17], and LHCb [18–20] Collaborations at the CERN LHC in pp collisions at centre-of-mass energies at 7 and 8 TeV. Similar studies at the higher LHC energy of 13 TeV provide a new test of theoretical calculations [21, 22]. This Letter describes a measurement of the inclusive B+ differential production cross sections as a function of the transverse momentum (pB

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Muon Tomography for Reverification of Spent Fuel Casks (the MUTOMCA Project)

Search for long-lived heavy neutral leptons decaying in the CMS muon detectors in proton-proton collisions at = 13 TeV

Search for a charged Higgs boson decaying into a heavy neutral Higgs boson and a W boson in proton-proton collisions at = 13 TeV

Search for Higgs boson pairs decaying to WW*WW*, WW*ττ, and ττττ in proton-proton collisions at = 13 TeV

Search for direct pair production of supersymmetric partners of τ leptons in the final state with two hadronically decaying τ leptons and missing transverse momentum in proton …

Search for nonresonant Higgs boson pair production in the four leptons plus twob jets final state in proton-proton collisions at = 13 TeV

Measurement of the mass dependence of the transverse momentum of lepton pairs in Drell–Yan production in proton–proton collisions at

Measurement of the top quark mass using a profile likelihood approach with the lepton + jets final states in proton–proton collisions at

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are the top articles of Majid Arabgol at Purdue University.

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Majid Arabgol has 241,967 citations in total.

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