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

Please use this identifier to cite or link to this item: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/1907

Title:	Non-Gaussian elliptic-flow fluctuations in PbPb collisions at root S-NN=5.02 TeV
Authors:	CMS Collaboration Sirunyan, A. M. CHAUHAN, S. DUBE, SOURABH HEGDE, V. KAPOOR, A. KOTHEKAR, K. PANDEY, S. RANE, A. SHARMA, SEEMA et al. Dept. of Physics
Keywords:	Event-by-event elliptic flow Non-Gaussian flow fluctuations Unfolding TOC-FEB-2019 2019
Issue Date:	Feb-2019
Publisher:	Elsevier B.V.
Citation:	Physics Letters B, 789, 643-665.
Abstract:	Event-by-event fluctuations in the elliptic-flow coefficient are studied in PbPb collisions at  TeV using the CMS detector at the CERN LHC. Elliptic-flow probability distributions for charged particles with transverse momentum and pseudorapidity are determined for different collision centrality classes. The moments of the distributions are used to calculate the 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 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.
URI:	http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/1907 https://doi.org/10.1016/j.physletb.2018.11.063
ISSN:	0370-2693 1873-2445
Appears in Collections:	JOURNAL ARTICLES

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