Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV

The Fourier coefficients v2 and v3 characterizing the anisotropy of the azimuthal distribution of charged particles produced in PbPb collisions at sNN=5.02 TeV are measured with data collected by the CMS experiment. The measurements cover a broad transverse momentum range, 1<pT<100 GeV/c. The...

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Main Authors:	Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Asilar, Ece, Bergauer, Thomas, Md. Ali, Mohd. Adli
Format:	Article
Language:	English English English
Published:	Elsevier BV 2018
Subjects:	QC Physics QD Chemistry
Online Access:	http://irep.iium.edu.my/65013/ http://irep.iium.edu.my/65013/ http://irep.iium.edu.my/65013/ http://irep.iium.edu.my/65013/1/65013_Azimuthal%20anisotropy%20of%20charged%20particles_article.pdf http://irep.iium.edu.my/65013/2/65013_Azimuthal%20anisotropy%20of%20charged%20particles_scopus.pdf http://irep.iium.edu.my/65013/13/65013_Azimuthal%20anisotropy%20of%20charged%20particles%20with%20transverse%20momentum%20up%20to%20100%20GeVc%20in%20PbPb%20collisions%20at%20sNN_5.02%20TeV_WOS.pdf

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spelling	iium-650132019-01-24T02:00:21Z http://irep.iium.edu.my/65013/ Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli QC Physics QD Chemistry The Fourier coefficients v2 and v3 characterizing the anisotropy of the azimuthal distribution of charged particles produced in PbPb collisions at sNN=5.02 TeV are measured with data collected by the CMS experiment. The measurements cover a broad transverse momentum range, 1<pT<100 GeV/c. The analysis focuses on the pT>10 GeV/c range, where anisotropic azimuthal distributions should reflect the path-length dependence of parton energy loss in the created medium. Results are presented in several bins of PbPb collision centrality, spanning the 60% most central events. The v2 coefficient is measured with the scalar product and the multiparticle cumulant methods, which have different sensitivities to initial-state fluctuations. The values from both methods remain positive up to pT∼60–80 GeV/c, in all examined centrality classes. The v3 coefficient, only measured with the scalar product method, tends to zero for pT≳20 GeV/c. Comparisons between theoretical calculations and data provide new constraints on the path-length dependence of parton energy loss in heavy ion collisions and highlight the importance of the initial-state fluctuations. Elsevier BV 2018-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/65013/1/65013_Azimuthal%20anisotropy%20of%20charged%20particles_article.pdf application/pdf en http://irep.iium.edu.my/65013/2/65013_Azimuthal%20anisotropy%20of%20charged%20particles_scopus.pdf application/pdf en http://irep.iium.edu.my/65013/13/65013_Azimuthal%20anisotropy%20of%20charged%20particles%20with%20transverse%20momentum%20up%20to%20100%20GeVc%20in%20PbPb%20collisions%20at%20sNN_5.02%20TeV_WOS.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Asilar, Ece and Bergauer, Thomas and Md. Ali, Mohd. Adli (2018) Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 776. pp. 195-216. ISSN 0370-2693 https://www.sciencedirect.com/science/article/pii/S0370269317309334?via%3Dihub 10.1016/j.physletb.2017.11.041
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	QC Physics QD Chemistry
spellingShingle	QC Physics QD Chemistry Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV
description	The Fourier coefficients v2 and v3 characterizing the anisotropy of the azimuthal distribution of charged particles produced in PbPb collisions at sNN=5.02 TeV are measured with data collected by the CMS experiment. The measurements cover a broad transverse momentum range, 1<pT<100 GeV/c. The analysis focuses on the pT>10 GeV/c range, where anisotropic azimuthal distributions should reflect the path-length dependence of parton energy loss in the created medium. Results are presented in several bins of PbPb collision centrality, spanning the 60% most central events. The v2 coefficient is measured with the scalar product and the multiparticle cumulant methods, which have different sensitivities to initial-state fluctuations. The values from both methods remain positive up to pT∼60–80 GeV/c, in all examined centrality classes. The v3 coefficient, only measured with the scalar product method, tends to zero for pT≳20 GeV/c. Comparisons between theoretical calculations and data provide new constraints on the path-length dependence of parton energy loss in heavy ion collisions and highlight the importance of the initial-state fluctuations.
format	Article
author	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli
author_facet	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli
author_sort	Sirunyan, A. M.
title	Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV
title_short	Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV
title_full	Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV
title_fullStr	Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV
title_full_unstemmed	Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV
title_sort	azimuthal anisotropy of charged particles with transverse momentum up to 100 gev/c in pbpb collisions at snn=5.02 tev
publisher	Elsevier BV
publishDate	2018
url	http://irep.iium.edu.my/65013/ http://irep.iium.edu.my/65013/ http://irep.iium.edu.my/65013/ http://irep.iium.edu.my/65013/1/65013_Azimuthal%20anisotropy%20of%20charged%20particles_article.pdf http://irep.iium.edu.my/65013/2/65013_Azimuthal%20anisotropy%20of%20charged%20particles_scopus.pdf http://irep.iium.edu.my/65013/13/65013_Azimuthal%20anisotropy%20of%20charged%20particles%20with%20transverse%20momentum%20up%20to%20100%20GeVc%20in%20PbPb%20collisions%20at%20sNN_5.02%20TeV_WOS.pdf
first_indexed	2023-09-18T21:32:14Z
last_indexed	2023-09-18T21:32:14Z
_version_	1777412587283021824

Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV

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