Non-Gaussian elliptic-flow fluctuations in PbPb collisions at √sNN = 5.02 TeV
Event-by-event fluctuations in the elliptic-flow coefficient v2 are studied in PbPb collisions at √sNN = 5.02 TeV using the CMS detector at the CERN LHC. Elliptic-flow probability distributions p(v2) for charged particles with transverse momentum 0.3 < pT < 3.0 GeV/c and pseudorapidity |η| &...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
Elsevier B.V.
2019
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/71808/ http://irep.iium.edu.my/71808/1/71808_Non-Gaussian%20elliptic-flow_article.pdf http://irep.iium.edu.my/71808/2/71808_Non-Gaussian%20elliptic-flow_wos.pdf http://irep.iium.edu.my/71808/3/71808_Non-Gaussian%20elliptic-flow_scopus.pdf |
| _version_ | 1848787512874500096 |
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| 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. |
| building | IIUM Repository |
| collection | Online Access |
| description | Event-by-event fluctuations in the elliptic-flow coefficient v2 are studied in PbPb collisions at √sNN =
5.02 TeV using the CMS detector at the CERN LHC. Elliptic-flow probability distributions p(v2) for charged
particles with transverse momentum 0.3 < pT < 3.0 GeV/c and pseudorapidity |η| < 1.0 are determined
for different collision centrality classes. The moments of the p(v2) distributions are used to calculate the
v2 coefficients based on cumulant orders 2, 4, 6, and 8. A rank ordering of the higher-order cumulant
results and nonzero standardized skewness values obtained for the p(v2) distributions indicate nonGaussian initial-state fluctuations. Bessel–Gaussian and elliptic power fits to the flow distributions are
studied to characterize the initial-state spatial anisotropy. |
| first_indexed | 2025-11-14T17:26:07Z |
| format | Article |
| id | iium-71808 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English English |
| last_indexed | 2025-11-14T17:26:07Z |
| publishDate | 2019 |
| publisher | Elsevier B.V. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-718082019-07-12T02:23:25Z http://irep.iium.edu.my/71808/ Non-Gaussian elliptic-flow fluctuations in PbPb 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 Event-by-event fluctuations in the elliptic-flow coefficient v2 are studied in PbPb collisions at √sNN = 5.02 TeV using the CMS detector at the CERN LHC. Elliptic-flow probability distributions p(v2) for charged particles with transverse momentum 0.3 < pT < 3.0 GeV/c and pseudorapidity |η| < 1.0 are determined for different collision centrality classes. The moments of the p(v2) distributions are used to calculate the v2 coefficients based on cumulant orders 2, 4, 6, and 8. A rank ordering of the higher-order cumulant results and nonzero standardized skewness values obtained for the p(v2) distributions indicate nonGaussian initial-state fluctuations. Bessel–Gaussian and elliptic power fits to the flow distributions are studied to characterize the initial-state spatial anisotropy. Elsevier B.V. 2019-02-10 Article PeerReviewed application/pdf en http://irep.iium.edu.my/71808/1/71808_Non-Gaussian%20elliptic-flow_article.pdf application/pdf en http://irep.iium.edu.my/71808/2/71808_Non-Gaussian%20elliptic-flow_wos.pdf application/pdf en http://irep.iium.edu.my/71808/3/71808_Non-Gaussian%20elliptic-flow_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2019) Non-Gaussian elliptic-flow fluctuations in PbPb collisions at √sNN = 5.02 TeV. Physics Letters, Section B, 789. pp. 643-665. ISSN 0370-2693 https://reader.elsevier.com/reader/sd/pii/S0370269318309924?token=481B143F3605F004CBDC15F3C6BB0C113C6687DC4E58D6068BD9ADF20B6DADA1E945444EF85D514DA000B81B9F9265C7 10.1016/j.physletb.2018.11.063 |
| spellingShingle | Q Science (General) QC Physics Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Non-Gaussian elliptic-flow fluctuations in PbPb collisions at √sNN = 5.02 TeV |
| title | Non-Gaussian elliptic-flow fluctuations in PbPb collisions at
√sNN = 5.02 TeV |
| title_full | Non-Gaussian elliptic-flow fluctuations in PbPb collisions at
√sNN = 5.02 TeV |
| title_fullStr | Non-Gaussian elliptic-flow fluctuations in PbPb collisions at
√sNN = 5.02 TeV |
| title_full_unstemmed | Non-Gaussian elliptic-flow fluctuations in PbPb collisions at
√sNN = 5.02 TeV |
| title_short | Non-Gaussian elliptic-flow fluctuations in PbPb collisions at
√sNN = 5.02 TeV |
| title_sort | non-gaussian elliptic-flow fluctuations in pbpb collisions at
√snn = 5.02 tev |
| topic | Q Science (General) QC Physics |
| url | http://irep.iium.edu.my/71808/ http://irep.iium.edu.my/71808/ http://irep.iium.edu.my/71808/ http://irep.iium.edu.my/71808/1/71808_Non-Gaussian%20elliptic-flow_article.pdf http://irep.iium.edu.my/71808/2/71808_Non-Gaussian%20elliptic-flow_wos.pdf http://irep.iium.edu.my/71808/3/71808_Non-Gaussian%20elliptic-flow_scopus.pdf |