ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

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

Sirunyan, AM (2019) Non-Gaussian elliptic-flow fluctuations in PbPb collisions at root S-NN=5.02 TeV. In: PHYSICS LETTERS B .

[img]
Preview
PDF
Phy_Let_B_789_643_2019.pdf - Published Version

Download (964kB) | Preview
Official URL: https://doi.org/10.1016/j.physletb.2018.11.063

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.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to ELSEVIER
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Depositing User: Id for Latest eprints
Date Deposited: 19 Feb 2019 05:42
Last Modified: 19 Feb 2019 05:42
URI: http://eprints.iisc.ac.in/id/eprint/61786

Actions (login required)

View Item View Item