Vardan Khachatryan
Cornell University
H-index: 194
North America-United States
Description
Vardan Khachatryan, With an exceptional h-index of 194 and a recent h-index of 91 (since 2020), a distinguished researcher at Cornell University, specializes in the field of High energy physics, particle physics, cosmic ray physics, accelerator physics.
His recent articles reflect a diverse array of research interests and contributions to the field:
Form factors and two-photon exchange in high-energy elastic electron-proton scattering
Deep exclusive electroproduction of at high in the quark valence regime
The very forward CASTOR calorimeter of the CMS experiment
Optical stochastic cooling with an arc bypass in the Cornell Electron Storage Ring
Analysis of the APEX Experiment Data
Limit on the anisotropy of the one-way maximum attainable speed of the electron
Professor Information
University | Cornell University |
|---|---|
Position | ___ |
Citations(all) | 135134 |
Citations(since 2020) | 36969 |
Cited By | 111441 |
hIndex(all) | 194 |
hIndex(since 2020) | 91 |
i10Index(all) | 491 |
i10Index(since 2020) | 396 |
University Profile Page | Cornell University |
Research & Interests List
High energy physics
particle physics
cosmic ray physics
accelerator physics
Top articles of Vardan Khachatryan
Form factors and two-photon exchange in high-energy elastic electron-proton scattering
We present new precision measurements of the elastic electron-proton scattering cross section for momentum transfer (Q 2) up to 15.75 (GeV/c) 2. Combined with existing data, these provide an improved extraction of the proton magnetic form factor at high Q 2 and double the range over which a longitudinal or transverse separation of the cross section can be performed. The difference between our results and polarization data agrees with that observed at lower Q 2 and attributed to hard two-photon exchange (TPE) effects, extending to 8 (GeV/c) 2 the range of Q 2 for which a discrepancy is established at> 95% confidence. We use the discrepancy to quantify the size of TPE contributions needed to explain the cross section at high Q 2.
Authors
ME Christy,T Gautam,L Ou,B Schmookler,Y Wang,D Adikaram,Z Ahmed,H Albataineh,SF Ali,B Aljawrneh,K Allada,SL Allison,S Alsalmi,D Androic,K Aniol,John Annand,J Arrington,H Atac,T Averett,C Ayerbe Gayoso,X Bai,J Bane,S Barcus,K Bartlett,V Bellini,R Beminiwattha,J Bericic,H Bhatt,D Bhetuwal,D Biswas,E Brash,D Bulumulla,CM Camacho,J Campbell,A Camsonne,M Carmignotto,J Castellanos,C Chen,JP Chen,T Chetry,E Cisbani,B Clary,E Cohen,N Compton,JC Cornejo,S Covrig Dusa,B Crowe,S Danagoulian,T Danley,W Deconinck,M Defurne,C Desnault,D Di,M Dlamini,M Duer,B Duran,R Ent,C Fanelli,E Fuchey,C Gal,D Gaskell,F Georges,S Gilad,O Glamazdin,K Gnanvo,AV Gramolin,VM Gray,C Gu,A Habarakada,T Hague,G Hamad,David Hamilton,K Hamilton,O Hansen,F Hauenstein,AV Hernandez,W Henry,DW Higinbotham,T Holmstrom,T Horn,Y Huang,GM Huber,C Hyde,H Ibrahim,N Israel,CM Jen,K Jin,M Jones,A Kabir,B Karki,C Keppel,V Khachatryan,PM King,S Li,W Li,H Liu,J Liu,AH Liyanage,D Mack,J Magee,S Malace,J Mammei,P Markowitz,S Mayilyan,E McClellan,F Meddi,D Meekins,K Mesick,R Michaels,A Mkrtchyan,B Moffit,Rachel Montgomery,LS Myers,P Nadel-Turonski,SJ Nazeer,V Nelyubin,D Nguyen,N Nuruzzaman,M Nycz,RF Obrecht,K Ohanyan,C Palatchi,B Pandey,K Park,S Park,C Peng,FD Persio,R Pomatsalyuk,E Pooser,AJR Puckett,V Punjabi,B Quinn,S Rahman,MNH Rashad,PE Reimer,S Riordan,J Roche,I Sapkota,A Sarty,B Sawatzky,NH Saylor,MH Shabestari,A Shahinyan,S Širca,GR Smith,S Sooriyaarachchilage,N Sparveris,R Spies,A Stefanko,T Su
Journal
Physical review letters
Published Date
2022/3/11
Deep exclusive electroproduction of at high in the quark valence regime
We report measurements of the exclusive neutral pion electroproduction cross section off protons at large values of x B (0.36, 0.48, and 0.60) and Q 2 (3.1 to 8.4 GeV 2) obtained from Jefferson Lab Hall A experiment E12-06-014. The corresponding structure functions d σ T/d t+ ε d σ L/d t, d σ T T/d t, d σ L T/d t, and d σ L T′/d t are extracted as a function of the proton momentum transfer t− t min. The results suggest the amplitude for transversely polarized virtual photons continues to dominate the cross section throughout this kinematic range. The data are well described by calculations based on transversity generalized parton distributions coupled to a helicity flip distribution amplitude of the pion, thus providing a unique way to probe the structure of the nucleon.
Authors
M Dlamini,B Karki,SF Ali,PJ Lin,F Georges,HS Ko,N Israel,MNH Rashad,A Stefanko,D Adikaram,Z Ahmed,H Albataineh,B Aljawrneh,K Allada,S Allison,S Alsalmi,D Androic,K Aniol,J Annand,H Atac,T Averett,C Ayerbe Gayoso,X Bai,J Bane,S Barcus,K Bartlett,V Bellini,R Beminiwattha,J Bericic,D Biswas,E Brash,D Bulumulla,J Campbell,A Camsonne,M Carmignotto,J Castellano,C Chen,JP Chen,T Chetry,ME Christy,E Cisbani,B Clary,E Cohen,N Compton,JC Cornejo,S Covrig Dusa,B Crowe,S Danagoulian,T Danley,F De Persio,W Deconinck,M Defurne,C Desnault,D Di,M Duer,B Duran,R Ent,C Fanelli,G Franklin,E Fuchey,C Gal,D Gaskell,T Gautam,O Glamazdin,K Gnanvo,VM Gray,C Gu,T Hague,G Hamad,D Hamilton,K Hamilton,O Hansen,F Hauenstein,W Henry,DW Higinbotham,T Holmstrom,T Horn,Y Huang,GM Huber,C Hyde,H Ibrahim,CM Jen,K Jin,M Jones,A Kabir,C Keppel,V Khachatryan,PM King,S Li,W Li,J Liu,H Liu,A Liyanage,J Magee,S Malace,J Mammei,P Markowitz,E McClellan,F Meddi,D Meekins,K Mesik,R Michaels,A Mkrtchyan,R Montgomery,C Muñoz Camacho,LS Myers,P Nadel-Turonski,SJ Nazeer,V Nelyubin,D Nguyen,N Nuruzzaman,M Nycz,OF Obretch,L Ou,C Palatchi,B Pandey,S Park,K Park,C Peng,R Pomatsalyuk,E Pooser,AJR Puckett,V Punjabi,B Quinn,S Rahman,PE Reimer,J Roche,I Sapkota,A Sarty,B Sawatzky,NH Saylor,B Schmookler,MH Shabestari,A Shahinyan,S Sirca,GR Smith,S Sooriyaarachchilage,N Sparveris,R Spies,T Su,A Subedi,V Sulkosky,A Sun,L Thorne,Y Tian,N Ton,F Tortorici,R Trotta,GM Urciuoli,E Voutier
Journal
Physical review letters
Published Date
2021/10/5
The very forward CASTOR calorimeter of the CMS experiment
The physics motivation, detector design, triggers, calibration, alignment, simulation, and overall performance of the very forward CASTOR calorimeter of the CMS experiment are reviewed. The CASTOR Cherenkov sampling calorimeter is located very close to the LHC beam line, at a radial distance of about 1 cm from the beam pipe, and at 14.4 m from the CMS interaction point, covering the pseudorapidity range of -6.6 < eta < - 5.2. It was designed to withstand high ambient radiation and strong magnetic fields. The performance of the detector in measurements of forward energy density, jets, and processes characterized by rapidity gaps, is reviewed using data collected in proton and nuclear collisions at the LHC.
Authors
Vardan Khachatryan,Robin Erbacher,Camilo Andres Carrillo Montoya,Wagner Carvalho,Maciej Górski,Danek Kotlinski,Cole Lindsey,Balazs Ujvari,Samila Muthumuni,Ayse Polatoz,Vinicius Massami Mikuni,Alfredo Gurrola,Basile Vermassen,Young-Il Choi,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Ludivine Ceard,Pierre Van Hove,Federica Legger,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Alessandro Thea,Giuseppe Latino,Andrew Hart,Federico Vazzoler,Thomas Ferbel,Sinan Sagir,Changgi Huh,Georgios Tsipolitis,Jennifer Chu,Sanghyun Ko,Jozsef Molnar,Soureek Mitra,Torben Dreyer,Shamik Ghosh,Mircho Rodozov,Michael Tytgat,Robert Schöfbeck,Luc Pape,James Hirschauer,Burak Bilki,Francisco Yumiceva,Mustafa Numan Bakirci,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,Soumya Mukherjee,Tomas Lindén,Zachary Lesko,Jonathon Langford,Graham Wilson,William Tabb,Furkan Dolek,Attilio Santocchia,Jaehoon Lim,Christos Roskas,Sergio Sánchez Navas,Erhan Gülmez,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,Ece Asilar,Salvatore Nuzzo,Alexander Morton,Vivan Nguyen,Nicola Cavallo,Anne-Marie Magnan,Christopher Mcginn,Chanwook Hwang,Redwan Habibullah,Peter Goettlicher,Serguei Volkov,Kai-Feng Chen,Matthew Nguyen,David Stickland,Giorgio Apollinari,Marta Felcini,Damir Lelas,Xinmei Niu,Gillian Kopp,Michal Olszewski,Scarlet Norberg,Oleksandr Zenaiev,Albert M Sirunyan,Alexander Pauls,Martijn Mulders,Fabrizio Palla,Satoshi Hasegawa,Lorenzo Uplegger,Elena Popova,Jeremi Niedziela,Roberval Walsh,Hugo Becerril Gonzalez,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Piotr Traczyk,Olmo Cerri,Prakash Thapa,D Agyel,Caroline Elisabeth Niniane Niemeyer,Siqi Yuan,Olena Karacheban,Alicia Calderon,Akshansh Singh,Pawan Kumar Netrakanti,Kevin Black,Thomas Kress,Georgia Karapostoli,Fotios Ptochos,Noemi Beni,Berkan Kaynak,Marc M Baarmand,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,De Hua Zhu,Clint Richardson,Maria Cepeda,Mauricio Thiel,Cécile Caillol,Yannik Rath,John Paul Chou,Linwei Li,Mohammed Mahmoud,Peicho Petkov,Lorenzo Russo,Davide Piccolo
Published Date
2020/11/2
Optical stochastic cooling with an arc bypass in the Cornell Electron Storage Ring
A proposed experiment to demonstrate optical stochastic cooling (OSC) in the Cornell Electron Storage Ring (CESR) based on an arc-bypass design is presented. This arc bypass provides significantly longer optical delay than the dog-leg style chicane, opening up the possibility of a multipass or staged optical amplifier that can achieve the gains required for effective cooling of hadron or heavy ions. Beyond introducing the arc bypass, in this paper we study the stability requirements for the dipoles comprising it and investigate the use of an optical feedback system to relax the dipole and light-path stability tolerances.
Authors
MB Andorf,WF Bergan,IV Bazarov,JM Maxson,V Khachatryan,DL Rubin,ST Wang
Journal
Physical Review Accelerators and Beams
Published Date
2020/10/13
Analysis of the APEX Experiment Data
The A-Prime Experiment (APEX) took data for the search for dark matter force mediator A'in the mass range 160-230 MeV decaying to e+ e-pairs with statistics corresponding to the signal sensitivity on the level of coupling constant 10-9. This experiment was carried out in Jefferson Lab experimental hall A in 2019 using the High Resolution Spectrometer (HRS) pair. We will present the results on the magnetic optics for accurate reconstruction of the particle momenta for the APEX configuration of the HRS spectrometers with the septum magnet. Preliminary results show that angular reconstruction could be accomplished with a precision of 0.5 msr or better.
Authors
Sean Jeffas,David Hamilton,Mark Jones,Vardan Khachatryan,Nilanga Liyanage,John Williamsom,Bogdan Wojtsekhowski
Journal
APS Division of Nuclear Physics Meeting Abstracts
Published Date
2020
Limit on the anisotropy of the one-way maximum attainable speed of the electron
We report here the first experimental result for the anisotropy of the one-way maximum attainable speed of the electron, Δ c→ 1, e, obtained via the study of a sidereal time dependence of the difference between momenta of the counterrotating electron and positron beams in the Cornell Electron Storage Ring at Cornell University. At 95% confidence, an upper limit for the component of Δ c→ 1, e/c perpendicular to Earth’s rotational axis is found to be 5.5× 10− 15.
Authors
W Bergan,MJ Forster,V Khachatryan,N Rider,DL Rubin,B Vlahovic,B Wojtsekhowski
Journal
Physical Review D
Published Date
2020/2/12
Professor FAQs
What is Vardan Khachatryan's h-index at Cornell University?
The h-index of Vardan Khachatryan has been 91 since 2020 and 194 in total.
What are Vardan Khachatryan's top articles?
The articles with the titles of
Form factors and two-photon exchange in high-energy elastic electron-proton scattering
Deep exclusive electroproduction of at high in the quark valence regime
The very forward CASTOR calorimeter of the CMS experiment
Optical stochastic cooling with an arc bypass in the Cornell Electron Storage Ring
Analysis of the APEX Experiment Data
Limit on the anisotropy of the one-way maximum attainable speed of the electron
are the top articles of Vardan Khachatryan at Cornell University.
What are Vardan Khachatryan's research interests?
The research interests of Vardan Khachatryan are: High energy physics, particle physics, cosmic ray physics, accelerator physics
What is Vardan Khachatryan's total number of citations?
Vardan Khachatryan has 135,134 citations in total.
Useful Links