Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV

Measurements of azimuthal angle and transverse momentum (pT) correlations of isolated photons and associated jets are reported for pp and PbPb collisions at √sNN = 5.02 TeV. The data were recorded with the CMS detector at the CERN LHC. For events containing a leading isolated photon with pγ T >...

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Main Authors:	Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Ambrogi, Federico, Asilar, Ece, Md. Ali, Mohd. Adli
Format:	Article
Language:	English English
Published:	Elsevier BV 2018
Subjects:	Q Science (General) QC Physics
Online Access:	http://irep.iium.edu.my/66770/ http://irep.iium.edu.my/66770/ http://irep.iium.edu.my/66770/ http://irep.iium.edu.my/66770/1/66770_Study%20of%20jet%20quenching%20with%20isolated-photon%2Bjet_article.pdf http://irep.iium.edu.my/66770/2/66770_Study%20of%20jet%20quenching%20with%20isolated-photon%2Bjet_scopus.pdf

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spelling	iium-667702018-10-10T08:06:59Z http://irep.iium.edu.my/66770/ Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Q Science (General) QC Physics Measurements of azimuthal angle and transverse momentum (pT) correlations of isolated photons and associated jets are reported for pp and PbPb collisions at √sNN = 5.02 TeV. The data were recorded with the CMS detector at the CERN LHC. For events containing a leading isolated photon with pγ T > 40 GeV/c and an associated jet with pjet T > 30 GeV/c, the photon+jet azimuthal correlation and pT imbalance in PbPb collisions are studied as functions of collision centrality and pγ T . The results are compared to pp reference data collected at the same collision energy and to predictions from several theoretical models for parton energy loss. No evidence of broadening of the photon+jet azimuthal correlations is observed, while the ratio pjet T /pγ T decreases significantly for PbPb data relative to the pp reference. All models considered agree within uncertainties with the data. The number of associated jets per photon with pγ T > 80 GeV/c is observed to be shifted towards lower pjet T values in central PbPb collisions compared to pp collisions Elsevier BV 2018-10-10 Article PeerReviewed application/pdf en http://irep.iium.edu.my/66770/1/66770_Study%20of%20jet%20quenching%20with%20isolated-photon%2Bjet_article.pdf application/pdf en http://irep.iium.edu.my/66770/2/66770_Study%20of%20jet%20quenching%20with%20isolated-photon%2Bjet_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 785. pp. 14-39. ISSN 0370-2693 https://reader.elsevier.com/reader/sd/pii/S0370269318306245?token=924149CB608BB57F244CBB47937572BEBA7929913E16F392401A38DCB27940035A5FD92672B50FDF7A74BE1ABF049433 10.1016/j.physletb.2018.07.061
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	Q Science (General) QC Physics
spellingShingle	Q Science (General) QC Physics Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV
description	Measurements of azimuthal angle and transverse momentum (pT) correlations of isolated photons and associated jets are reported for pp and PbPb collisions at √sNN = 5.02 TeV. The data were recorded with the CMS detector at the CERN LHC. For events containing a leading isolated photon with pγ T > 40 GeV/c and an associated jet with pjet T > 30 GeV/c, the photon+jet azimuthal correlation and pT imbalance in PbPb collisions are studied as functions of collision centrality and pγ T . The results are compared to pp reference data collected at the same collision energy and to predictions from several theoretical models for parton energy loss. No evidence of broadening of the photon+jet azimuthal correlations is observed, while the ratio pjet T /pγ T decreases significantly for PbPb data relative to the pp reference. All models considered agree within uncertainties with the data. The number of associated jets per photon with pγ T > 80 GeV/c is observed to be shifted towards lower pjet T values in central PbPb collisions compared to pp collisions
format	Article
author	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli
author_facet	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli
author_sort	Sirunyan, A. M.
title	Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV
title_short	Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV
title_full	Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV
title_fullStr	Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV
title_full_unstemmed	Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV
title_sort	study of jet quenching with isolated-photon+jet correlations in pbpb and pp collisions at snn=5.02 tev
publisher	Elsevier BV
publishDate	2018
url	http://irep.iium.edu.my/66770/ http://irep.iium.edu.my/66770/ http://irep.iium.edu.my/66770/ http://irep.iium.edu.my/66770/1/66770_Study%20of%20jet%20quenching%20with%20isolated-photon%2Bjet_article.pdf http://irep.iium.edu.my/66770/2/66770_Study%20of%20jet%20quenching%20with%20isolated-photon%2Bjet_scopus.pdf
first_indexed	2023-09-18T21:34:50Z
last_indexed	2023-09-18T21:34:50Z
_version_	1777412751407185920

Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV

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