Subir Sarkar

University of Oxford

H-index: 140

Europe-United Kingdom

Description

Subir Sarkar, With an exceptional h-index of 140 and a recent h-index of 82 (since 2020), a distinguished researcher at University of Oxford, specializes in the field of Astroparticle Physics, Cosmology, High energy physics, Plasma physics.

His recent articles reflect a diverse array of research interests and contributions to the field:

Search for Continuous and Transient Neutrino Emission Associated with IceCube’s Highest-energy Tracks: An 11 yr Analysis

In situ estimation of ice crystal properties at the South Pole using LED calibration data from the IceCube Neutrino Observatory

Mechanical design of the optical modules intended for IceCube-Gen2

Search for Cosmic-Ray Events Using Radio Signals and CNNs in Data from the IceTop Enhancement Prototype Station

Direction reconstruction performance for IceCube-Gen2 Radio

Searches for Neutrinos from Large High Altitude Air Shower Observatory Ultra-high-energy γ-Ray Sources Using the IceCube Neutrino Observatory

Constraining High-energy Neutrino Emission from Supernovae with IceCube

Measurement of atmospheric neutrino mixing with improved IceCube DeepCore calibration and data processing

Professor Information

University	University of Oxford
Position	Professor of Physics
Citations(all)	160217
Citations(since 2020)	47791
Cited By	133113
hIndex(all)	140
hIndex(since 2020)	82
i10Index(all)	396
i10Index(since 2020)	288
Email	Access Email
University Profile Page	University of Oxford

Research & Interests List

Astroparticle Physics

Cosmology

High energy physics

Plasma physics

Top articles of Subir Sarkar

Search for Continuous and Transient Neutrino Emission Associated with IceCube’s Highest-energy Tracks: An 11 yr Analysis

IceCube alert events are neutrinos with a moderate-to-high probability of having astrophysical origin. In this study, we analyze 11 yr of IceCube data and investigate 122 alert events and a selection of high-energy tracks detected between 2009 and the end of 2021. This high-energy event selection (alert events+ high-energy tracks) has an average probability of 0.5 of being of astrophysical origin. We search for additional continuous and transient neutrino emission within the high-energy events’ error regions. We find no evidence for significant continuous neutrino emission from any of the alert event directions. The only locally significant neutrino emission is the transient emission associated with the blazar TXS0506+ 056, with a local significance of 3σ, which confirms previous IceCube studies. When correcting for 122 test positions, the global p-value is 0.156 and compatible with the background hypothesis. We …

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Argüelles,Y Ashida,S Athanasiadou,SN Axani,X Bai,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,J Becker Tjus,J Beise,C Bellenghi,C Benning,S BenZvi,D Berley,E Bernardini,DZ Besson,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,E Bourbeau,J Braun,B Brinson,J Brostean-Kaiser,RT Burley,RS Busse,D Butterfield,MA Campana,K Carloni,EG Carnie-Bronca,S Chattopadhyay,N Chau,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,S Coenders,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,A Domi,H Dujmovic,MA DuVernois,T Ehrhardt,A Eimer,P Eller,E Ellinger,S El Mentawi,D Elsässer,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,A Fritz,P Fürst,J Gallagher,E Ganster,A Garcia,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glüsenkamp,N Goehlke,JG Gonzalez,S Goswami,D Grant,SJ Gray,O Gries,S Griffin,S Griswold,KM Groth,C Günther,P Gutjahr,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,K Helbing,J Hellrung,F Henningsen,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,S Hori,K Hoshina,W Hou,T Huber,K Hultqvist,M Hünnefeld,R Hussain,K Hymon

Journal

The Astrophysical Journal

Published Date

2024/3/13

In situ estimation of ice crystal properties at the South Pole using LED calibration data from the IceCube Neutrino Observatory

The IceCube Neutrino Observatory instruments about 1 km of deep, glacial ice at the geographic South Pole. It uses 5160 photomultipliers to detect Cherenkov light emitted by charged relativistic particles. An unexpected light propagation effect observed by the experiment is an anisotropic attenuation, which is aligned with the local flow direction of the ice. We examine birefringent light propagation through the polycrystalline ice microstructure as a possible explanation for this effect. The predictions of a first-principles model developed for this purpose, in particular curved light trajectories resulting from asymmetric diffusion, provide a qualitatively good match to the main features of the data. This in turn allows us to deduce ice crystal properties. Since the wavelength of the detected light is short compared to the crystal size, these crystal properties include not only the crystal orientation fabric, but also the average crystal size and shape, as a function of depth. By adding small empirical corrections to this first-principles model, a quantitatively accurate description of the optical properties of the IceCube glacial ice is obtained. In this paper, we present the experimental signature of ice optical anisotropy observed in IceCube light-emitting diode (LED) calibration data, the theory and parameterization of the birefringence effect, the fitting procedures of these parameterizations to experimental data, and the inferred crystal properties.

Authors

Rasha Abbasi,Markus Ackermann,Jenni Adams,Nakul Aggarwal,Juanan Aguilar,Markus Ahlers,Maryon Ahrens,Jean-Marco Alameddine,Antonio Augusto Alves Junior,Najia Moureen Binte Amin,Karen Andeen,Tyler Anderson,Gisela Anton,Carlos Argüelles,Yosuke Ashida,Sofia Athanasiadou,Spencer Axani,Xinhua Bai,Aswathi Balagopal V,Moreno Baricevic,Steve Barwick,Vedant Basu,Ryan Bay,James Beatty,Karl Heinz Becker,Julia Becker Tjus,Jakob Beise,Chiara Bellenghi,Samuel Benda,Segev BenZvi,David Berley,Elisa Bernardini,Dave Besson,Gary Binder,Daniel Bindig,Erik Blaufuss,Summer Blot,Federico Bontempo,Julia Book,Jürgen Borowka,Caterina Boscolo Meneguolo,Sebastian Böser,Olga Botner,Jakob Böttcher,Etienne Bourbeau,Jim Braun,Bennett Brinson,Jannes Brostean-Kaiser,Ryan Burley,Raffaela Busse,Michael Campana,Erin Carnie-Bronca,Chujie Chen,Zheyang Chen,Dmitry Chirkin,Koun Choi,Brian Clark,Lew Classen,Alan Coleman,Gabriel Collin,Amy Connolly,Janet Conrad,Paul Coppin,Pablo Correa,Stefan Countryman,Doug Cowen,Robert Cross,Christian Dappen,Pranav Dave,Catherine De Clercq,James DeLaunay,Diyaselis Delgado López,Hans Dembinski,Kunal Deoskar,Abhishek Desai,Paolo Desiati,Krijn de Vries,Gwenhael de Wasseige,Tyce DeYoung,Alejandro Diaz,Juan Carlos Díaz-Vélez,Markus Dittmer,Hrvoje Dujmovic,Michael DuVernois,Thomas Ehrhardt,Philipp Eller,Ralph Engel,Hannah Erpenbeck,John Evans,Paul Evenson,Kwok Lung Fan,Ali Fazely,Anatoli Fedynitch,Nora Feigl,Sebastian Fiedlschuster,Aaron Fienberg,Chad Finley,Leander Fischer,Derek Fox,Anna Franckowiak,Elizabeth Friedman,Alexander Fritz,Philipp Fürst,Tom Gaisser,Jay Gallagher,Erik Ganster,Alfonso Garcia,Simone Garrappa,Lisa Gerhardt,Ava Ghadimi,Christian Glaser,Thorsten Glüsenkamp,Theo Glauch,Noah Goehlke,Javier Gonzalez,Sreetama Goswami,Darren Grant,Shannon Gray,Timothée Grégoire,Spencer Griswold,Christoph Günther,Pascal Gutjahr,Christian Haack,Allan Hallgren,Robert Halliday,Lasse Halve,Francis Halzen,Hassane Hamdaoui,Martin Ha Minh,Kael Hanson,John Hardin,Alexander Harnisch,Patrick Hatch,Andreas Haungs,Klaus Helbing,Jonas Hellrung,Felix Henningsen,Lars Heuermann,Stephanie Hickford,Colton Hill,Gary Hill,Kara Hoffman,Kotoyo Hoshina,Wenjie Hou,Thomas Huber,Klas Hultqvist,Mirco Hünnefeld,Raamis Hussain,Karolin Hymon,Seongjin In

Journal

The Cryosphere

Published Date

2024/1/4

Mechanical design of the optical modules intended for IceCube-Gen2

IceCube-Gen2 is an expansion of the IceCube neutrino observatory at the South Pole that aims to increase the sensitivity to high-energy neutrinos by an order of magnitude. To this end, about 10,000 new optical modules will be installed, instrumenting a fiducial volume of about 8 km. Two newly developed optical module types increase IceCube’s current sensitivity per module by a factor of three by integrating 16 and 18 newly developed four-inch PMTs in specially designed 12.5-inch diameter pressure vessels. Both designs use conical silicone gel pads to optically couple the PMTs to the pressure vessel to increase photon collection efficiency. The outside portion of gel pads are pre-cast onto each PMT prior to integration, while the interiors are filled and cast after the PMT assemblies are installed in the pressure vessel via a pushing mechanism. This paper presents both the mechanical design, as well as the performance of prototype modules at high pressure (70 MPa) and low temperature (40C), characteristic of the environment inside the South Pole ice.

Authors

Rasha Abbasi,Markus Ackermann,Jenni Adams,Sanjib Agarwalla,Juanan Aguilar,Markus Ahlers,Jean-Marco Alameddine,Najia Moureen Binte Amin,Karen Andeen,Gisela Anton

Published Date

2023

Search for Cosmic-Ray Events Using Radio Signals and CNNs in Data from the IceTop Enhancement Prototype Station

Cosmic-ray air showers emit radio waves that can be used to measure the properties of cosmic-ray primary particles. The radio detection technique presents several advantages, such as low cost and year-round duty cycle as well as the ability to provide high sensitivity to Xmax and energy estimation with minimal theoretical uncertainties, making it a promising tool for studying cosmic rays at the highest energies. However, the primary limitation of radio detection is the irreducible background from various sources that obscure the impulsive signals generated by air showers. To address this issue, we investigated the use of Convolutional Neural Networks (CNNs), trained on CoREAS simulations and radio backgrounds measured by a prototype station at the South Pole. We developed two different CNNs: a Classifier that distinguishes between cosmic ray event radio signals and pure background waveforms, and a …

Authors

Abdul Rehman,Alan Coleman,Frank G Schröder,Dana Kullgren,Rasha Abbasi,Markus Ackermann,Jenni Adams,Sanjib Agarwalla,Juanan Aguilar,Markus Ahlers,Jean-Marco Alameddine,Najia Moureen Binte Amin,Karen Andeen,Gisela Anton,Carlos Argüelles,Yosuke Ashida,Sofia Athanasiadou,Spencer Axani,Xinhua Bai,V Balagopal,Moreno Baricevic,Steve Barwick,Vedant Basu,Ryan Bay,James Beatty,Julia Becker Tjus,Jakob Beise,Chiara Bellenghi,Charlotte Benning,Segev BenZvi,David Berley,Elisa Bernardini,Dave Besson,Erik Blaufuss,Summer Blot,Federico Bontempo,Julia Book,Caterina Boscolo Meneguolo,Sebastian Boser,Olga Botner,Jakob Bottcher,Etienne Bourbeau,Jim Braun,Bennett Brinson,Jannes Brostean-Kaiser,Ryan T Burley,Raffaela Busse,Delaney Butterfield,Michael Campana,Kiara Carloni,Erin Carnie-Bronca,Sharmistha Chattopadhyay,Thien Nhan Chau,Chujie Chen,Zheyang Chen,Dmitry Chirkin,Seowon Choi,Brian Clark,Lew Classen,Gabriel Collin,Amy Connolly,Janet Conrad,Paul Coppin,Doug Cowen,Pranav Dave,Catherine De Clercq,James DeLaunay,Diyaselis Delgado Lopez,Shuyang Deng,Kunal Deoskar,Abhishek Desai,Paolo Desiati,Krijn De Vries,Gwenhaël De Wasseige,Tyce DeYoung,Alejandro Diaz,Juan Carlos Diaz-Velez,Markus Dittmer,Alba Domi,Hrvoje Dujmovic,Michael DuVernois,Thomas Ehrhardt,Philipp Eller,Enrico Ellinger,Sharif El Mentawi,Dominik Elsässer,Ralph Engel,Hannah Erpenbeck,John Evans,Paul Evenson,Kwok Lung Fan,Ke Fang,Kareem Ramadan Farrag,Ali Fazely,Anatoli Fedynitch,Nora Feigl,Sebastian Fiedlschuster,Chad Finley,Leander Fischer,Derek B Fox,Anna Franckowiak,Alexander Fritz,Philipp Furst,Jay Gallagher,Erik Ganster,Alfonso Garcia,Lisa Gerhardt,Ava Ghadimi,Christian Glaser,Theo Glauch,Thorsten Glusenkamp,Noah Goehlke,Javier Gonzalez,Sreetama Goswami,Darren Grant,Shannon Gray,Oliver Gries,Sean Griffin,Spencer Griswold,Kathrine Morch Groth,Christoph Günther,Pascal Gutjahr,Christian Haack,Allan Hallgren,Robert Halliday,Lasse Halve,Francis Halzen,Hassane Hamdaoui,Martin Ha Minh,Kael Hanson,John Hardin,Alexander Harnisch,Patrick Hatch,Andreas Haungs,Klaus Helbing,Jonas Hellrung,Felix Henningsen,Lars Philipp Heuermann,Nils Heyer,Stephanie Hickford,Attila Hidvegi,Colton Hill,Gary Hill,Kara Hoffman,Sam Hori,Kotoyo Hoshina,Wenjie Hou,Thomas Huber,Klas Hultqvist,Mirco Hunnefeld

Journal

38th International Cosmic Ray Conference (ICRC2023)-Cosmic-Ray Physics (Indirect, CRI)

Published Date

2023

Direction reconstruction performance for IceCube-Gen2 Radio

The IceCube-Gen2 facility will extend the energy range of IceCube to ultra-high energies. The key component to detect neutrinos with energies above 10 PeV is a large array of in-ice radio detectors. In previous work, direction reconstruction algorithms using the forward-folding technique have been developed for both shallow (≲20 m) and deep in-ice detectors, and have also been successfully used to reconstruct cosmic rays with ARIANNA. Here, we focus on the reconstruction algorithm for the deep in-ice detector, which was recently introduced in the context of the Radio Neutrino Observatory in Greenland (RNO-G).

Authors

Sjoerd Bouma,Anna Nelles,Rasha Abbasi,Markus Ackermann,Jenni Adams,Sanjib Agarwalla,Juanan Aguilar,Markus Ahlers,Jean-Marco Alameddine,Najia Moureen Binte Amin,Karen Andeen,Gisela Anton,Carlos Argüelles,Yosuke Ashida,Sofia Athanasiadou,Jan Audehm,Spencer Axani,Xinhua Bai,V Balagopal,Moreno Baricevic,Steve Barwick,Vedant Basu,Ryan Bay,Julia Becker Tjus,Jakob Beise,Chiara Bellenghi,Charlotte Benning,Segev BenZvi,David Berley,Elisa Bernardini,Dave Besson,Abigail Bishop,Erik Blaufuss,Summer Blot,Michael Bohmer,Federico Bontempo,Julia Book,Jurgen Borowka,Caterina Boscolo Meneguolo,Sebastian Boser,Olga Botner,Jakob Bottcher,Etienne Bourbeau,Jim Braun,Bennett Brinson,Jannes Brostean-Kaiser,Ryan T Burley,Raffaela Busse,Delaney Butterfield,Michael Campana,Kiara Carloni,Erin Carnie-Bronca,Maddalena Cataldo,Sharmistha Chattopadhyay,Thien Nhan Chau,Chujie Chen,Zheyang Chen,Dmitry Chirkin,Seowon Choi,Brian Clark,Rogan Clark,Lew Classen,Alan Coleman,Gabriel Collin,Janet Conrad,Doug Cowen,Basudeb Dasgupta,Pranav Dave,Cosmin Deaconu,Catherine De Clercq,Simon De Kockere,James DeLaunay,Diyaselis Delgado Lopez,Shuyang Deng,Kunal Deoskar,Abhishek Desai,Paolo Desiati,Krijn De Vries,Gwenhaël De Wasseige,Tyce DeYoung,Alejandro Diaz,Juan Carlos Diaz-Velez,Markus Dittmer,Alba Domi,Hrvoje Dujmovic,Michael DuVernois,Thomas Ehrhardt,Philipp Eller,Enrico Ellinger,Sharif El Mentawi,Dominik Elsässer,Ralph Engel,Hannah Erpenbeck,John Evans,Justin Evans,Paul Evenson,Kwok Lung Fan,Ke Fang,Kareem Ramadan Farrag,Ali Fazely,Anatoli Fedynitch,Nora Feigl,Sebastian Fiedlschuster,Chad Finley,Leander Fischer,Benjamin Flaggs,Derek B Fox,Anna Franckowiak,Alexander Fritz,Toshihiro Fujii,Philipp Furst,Jay Gallagher,Erik Ganster,Alfonso Garcia,Lisa Gerhardt,Roman Gernhaeuser,Ava Ghadimi,Pawan Giri,Christian Glaser,Theo Glauch,Thorsten Glusenkamp,Noah Goehlke,Sreetama Goswami,Darren Grant,Shannon Gray,Oliver Gries,Sean Griffin,Spencer Griswold,David Joseph Guevel,Christoph Günther,Pascal Gutjahr,Christian Haack,Tara Haji Azim,Allan Hallgren,Robert Halliday,Steffen Hallmann,Lasse Halve,Francis Halzen,Hassane Hamdaoui,Martin Ha Minh,Kael Hanson,John Hardin,Alexander Harnisch,Patrick Hatch,Jim Haugen,Andreas Haungs,Dirk Heinen,Klaus Helbing,Jonas Hellrung,Brian Hendricks

Journal

38th International Cosmic Ray Conference (ICRC2023)-Neutrino Astronomy & Physics (NU)

Published Date

2023

Searches for Neutrinos from Large High Altitude Air Shower Observatory Ultra-high-energy γ-Ray Sources Using the IceCube Neutrino Observatory

Galactic PeV cosmic-ray accelerators (PeVatrons) are Galactic sources theorized to accelerate cosmic rays up to PeV in energy. The accelerated cosmic rays are expected to interact hadronically with nearby ambient gas or the interstellar medium, resulting in γ-rays and neutrinos. Recently, the Large High Altitude Air Shower Observatory (LHAASO) identified 12 γ-ray sources with emissions above 100 TeV, making them candidates for PeVatrons. While at these high energies the Klein–Nishina effect exponentially suppresses leptonic emission from Galactic sources, evidence for neutrino emission would unequivocally confirm hadronic acceleration. Here, we present the results of a search for neutrinos from these γ-ray sources and stacking searches testing for excess neutrino emission from all 12 sources as well as their subcatalogs of supernova remnants and pulsar wind nebulae with 11 yr of track events from the …

Authors

Rasha Abbasi,M Ackermann,J Adams,N Aggarwal,JA Aguilar,M Ahlers,JM Alameddine,AA Alves,NM Amin,K Andeen,T Anderson,G Anton,C Argüelles,Y Ashida,S Athanasiadou,SN Axani,X Bai,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,K-H Becker,J Becker Tjus,J Beise,C Bellenghi,S Benda,S BenZvi,D Berley,E Bernardini,DZ Besson,G Binder,D Bindig,E Blaufuss,S Blot,F Bontempo,JY Book,J Borowka,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,E Bourbeau,J Braun,B Brinson,J Brostean-Kaiser,RT Burley,RS Busse,MA Campana,EG Carnie-Bronca,YL Chang,C Chen,Z Chen,D Chirkin,K Choi,BA Clark,L Classen,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,S Countryman,DF Cowen,C Dappen,P Dave,C De Clercq,JJ DeLaunay,D Delgado López,H Dembinski,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,H Dujmovic,MA DuVernois,T Ehrhardt,P Eller,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,AT Fienberg,C Finley,L Fischer,D Fox,A Franckowiak,E Friedman,A Fritz,P Fürst,TK Gaisser,J Gallagher,E Ganster,A Garcia,S Garrappa,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glüsenkamp,N Goehlke,JG Gonzalez,S Goswami,D Grant,SJ Gray,T Grégoire,S Griswold,C Günther,P Gutjahr,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,K Helbing,J Hellrung,F Henningsen,L Heuermann,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,K Hoshina,W Hou,T Huber,K Hultqvist,M Hünnefeld,R Hussain,K Hymon,S In,N Iovine

Journal

The Astrophysical Journal Letters

Published Date

2023/3/1

Constraining High-energy Neutrino Emission from Supernovae with IceCube

Core-collapse supernovae are a promising potential high-energy neutrino source class. We test for correlation between seven years of IceCube neutrino data and a catalog containing more than 1000 core-collapse supernovae of types IIn and IIP and a sample of stripped-envelope supernovae. We search both for neutrino emission from individual supernovae as well as for combined emission from the whole supernova sample, through a stacking analysis. No significant spatial or temporal correlation of neutrinos with the cataloged supernovae was found. All scenarios were tested against the background expectation and together yield an overall p-value of 93%; therefore, they show consistency with the background only. The derived upper limits on the total energy emitted in neutrinos are 1.7× 1048 erg for stripped-envelope supernovae, 2.8× 1048 erg for type IIP, and 1.3× 1049 erg for type IIn SNe, the latter …

Authors

Rasha Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Argüelles,Y Ashida,S Athanasiadou,SN Axani,X Bai,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,K-H Becker,J Becker Tjus,J Beise,C Bellenghi,S BenZvi,D Berley,E Bernardini,DZ Besson,G Binder,D Bindig,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,E Bourbeau,J Braun,B Brinson,J Brostean-Kaiser,RT Burley,RS Busse,D Butterfield,MA Campana,K Carloni,EG Carnie-Bronca,S Chattopadhyay,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,L Classen,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,S Countryman,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado López,H Dembinski,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,A Domi,H Dujmovic,MA DuVernois,T Ehrhardt,P Eller,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,E Friedman,A Fritz,P Fürst,TK Gaisser,J Gallagher,E Ganster,A Garcia,S Garrappa,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glüsenkamp,N Goehlke,JG Gonzalez,S Goswami,D Grant,SJ Gray,S Griffin,S Griswold,C Günther,P Gutjahr,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,K Helbing,J Hellrung,F Henningsen,L Heuermann,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,K Hoshina,W Hou,T Huber,K Hultqvist,M Hünnefeld,R Hussain,K Hymon,S In,N Iovine,A Ishihara,M Jacquart

Journal

The Astrophysical Journal Letters

Published Date

2023/5/22

Measurement of atmospheric neutrino mixing with improved IceCube DeepCore calibration and data processing

We describe a new data sample of IceCube DeepCore and report on the latest measurement of atmospheric neutrino oscillations obtained with data recorded between 2011–2019. The sample includes significant improvements in data calibration, detector simulation, and data processing, and the analysis benefits from a sophisticated treatment of systematic uncertainties, with significantly greater level of detail since our last study. By measuring the relative fluxes of neutrino flavors as a function of their reconstructed energies and arrival directions we constrain the atmospheric neutrino mixing parameters to be sin 2 θ 23= 0.51±0.05 and Δ m 32 2= 2.41±0.07× 10− 3 eV 2, assuming a normal mass ordering. The errors include both statistical and systematic uncertainties. The resulting 40% reduction in the error of both parameters with respect to our previous result makes this the most precise measurement of oscillation …

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Argüelles,Y Ashida,S Athanasiadou,SN Axani,X Bai,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,K-H Becker,J Becker Tjus,J Beise,C Bellenghi,C Benning,S BenZvi,D Berley,E Bernardini,DZ Besson,G Binder,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,E Bourbeau,J Braun,B Brinson,J Brostean-Kaiser,RT Burley,RS Busse,D Butterfield,MA Campana,K Carloni,EG Carnie-Bronca,S Chattopadhyay,N Chau,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,L Classen,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,S Countryman,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,H Dembinski,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,A Domi,H Dujmovic,MA DuVernois,T Ehrhardt,P Eller,S El Mentawi,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,E Friedman,A Fritz,P Fürst,TK Gaisser,J Gallagher,E Ganster,A Garcia,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glüsenkamp,N Goehlke,JG Gonzalez,S Goswami,D Grant,SJ Gray,O Gries,S Griffin,S Griswold,C Günther,P Gutjahr,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,K Helbing,J Hellrung,F Henningsen,L Heuermann,N Heyer,S Hickford,A Hidvegi,J Hignight,C Hill,GC Hill,KD Hoffman,S Hori,K Hoshina,W Hou,T Huber,K Hultqvist

Journal

Physical Review D

Published Date

2023/7/20