Sirunyan, AM (2019) Non-Gaussian elliptic-flow fluctuations in PbPb collisions at root S-NN=5.02 TeV. In: PHYSICS LETTERS B .
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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 |
|---|---|
| Publication: | PHYSICS LETTERS B |
| Publisher: | ELSEVIER |
| Additional Information: | Copyright of this article belongs to ELSEVIER |
| Department/Centre: | Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering) |
| Date Deposited: | 19 Feb 2019 05:42 |
| Last Modified: | 19 Feb 2019 05:42 |
| URI: | http://eprints.iisc.ac.in/id/eprint/61786 |
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