Non-Gaussian elliptic-flow fluctuations in PbPb collisions at root S-NN=5.02 TeV

Show full item record



Permalink

http://hdl.handle.net/10138/300428

Citation

The CMS Collaboration , Sirunyan , A M , Eerola , P , Kirschenmann , H , Pekkanen , J , Voutilainen , M , Havukainen , J , Heikkilä , J K , Järvinen , T , Karimäki , V , Kinnunen , R , Lampén , T , Lassila-Perini , K , Laurila , S , Lehti , S , Lindén , T , Luukka , P , Siikonen , H , Tuominen , E , Tuominiemi , J & Tuuva , T 2019 , ' Non-Gaussian elliptic-flow fluctuations in PbPb collisions at root S-NN=5.02 TeV ' , Physics Letters B , vol. 789 , pp. 643-665 . https://doi.org/10.1016/j.physletb.2018.11.063

Title: Non-Gaussian elliptic-flow fluctuations in PbPb collisions at root S-NN=5.02 TeV
Author: The CMS collaboration; Sirunyan, A. M.; Eerola, P.; Kirschenmann, H.; Pekkanen, J.; Voutilainen, M.; Havukainen, J.; Heikkilä, J. K.; Järvinen, T.; Karimäki, V.; Kinnunen, R.; Lampén, T.; Lassila-Perini, K.; Laurila, S.; Lehti, S.; Lindén, T.; Luukka, P.; Siikonen, H.; Tuominen, E.; Tuominiemi, J.; Tuuva, T.
Contributor organization: Department of Physics
Helsinki Institute of Physics
Date: 2019-02-10
Language: eng
Number of pages: 23
Belongs to series: Physics Letters B
ISSN: 0370-2693
DOI: https://doi.org/10.1016/j.physletb.2018.11.063
URI: http://hdl.handle.net/10138/300428
Abstract: Event-by-event fluctuations in the elliptic-flow coefficient v(2) are studied in PbPb collisions at root S-NN = 5.02 TeV using the CMS detector at the CERN LHC. Elliptic-flow probability distributions p(v(2)) for charged particles with transverse momentum 0.3 < p(T) < 3.0 GeV/c and pseudorapidity vertical bar eta vertical bar < 1.0 are determined for different collision centrality classes. The moments of the p(v(2)) distributions are used to calculate the v(2) 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(v(2)) distributions indicate non-Gaussian initial-state fluctuations. Bessel-Gaussian and elliptic power fits to the flow distributions are studied to characterize the initial-state spatial anisotropy. (C) 2018 The Author(s). Published by Elsevier B.V.
Subject: 114 Physical sciences
Event-by-event elliptic flow
Non-Gaussian flow fluctuations
Unfolding
QUARK-GLUON PLASMA
PARTICLE-PRODUCTION
NUCLEAR COLLISIONS
PERSPECTIVE
ANISOTROPY
VISCOSITY
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


Files in this item

Total number of downloads: Loading...

Files Size Format View
1_s2.0_S0370269318309924_main.pdf 941.9Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record