Non-Gaussian elliptic-flow fluctuations in PbPb collisions at √sNN = 5.02 TeV

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Date
2019-02-10Type
- Journal Article
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Cited 27 times in
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Cited 31 times in
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Abstract
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 non-Gaussian initial-state fluctuations. Bessel–Gaussian and elliptic power fits to the flow distributions are studied to characterize the initial-state spatial anisotropy. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000322333External links
Journal / series
Physics Letters BVolume
Pages / Article No.
Publisher
ElsevierSubject
Event-by-event elliptic flow; Non-Gaussian flow fluctuations; UnfoldingOrganisational unit
03593 - Dissertori, Günther / Dissertori, Günther
03904 - Wallny, Rainer / Wallny, Rainer
08803 - Grab, Christoph (Tit.Prof.)
08803 - Grab, Christoph (Tit.Prof.)
09631 - Shchutska, Lesya (ehemalig) / Shchutska, Lesya (former)
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Show all metadata
Citations
Cited 27 times in
Web of Science
Cited 31 times in
Scopus
ETH Bibliography
yes
Altmetrics