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Centrality dependence of identified particle elliptic flow in relativistic heavy ion collisions at sNN =7.7-62.4 GeV

Adamczyk, L.
•
Adkins, J. K.
•
Agakishiev, G.
altro
Zyzak, M.
2016
  • journal article

Periodico
PHYSICAL REVIEW C
Abstract
Elliptic flow (v2) values for identified particles at midrapidity in Au + Au collisions measured by the STAR experiment in the Beam Energy Scan at the Relativistic Heavy Ion Collider at sNN=7.7–62.4 GeV are presented for three centrality classes. The centrality dependence and the data at sNN=14.5 GeV are new. Except at the lowest beam energies, we observe a similar relative v2 baryon-meson splitting for all centrality classes which is in agreement within 15% with the number-of-constituent quark scaling. The larger v2 for most particles relative to antiparticles, already observed for minimum bias collisions, shows a clear centrality dependence, with the largest difference for the most central collisions. Also, the results are compared with a multiphase transport (AMPT) model and fit with a blast wave model.
DOI
10.1103/PhysRevC.93.014907
WOS
WOS:000368514200007
Archivio
http://hdl.handle.net/11368/2941996
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84955601541
http://harvest.aps.org/bagit/articles/10.1103/PhysRevC.93.014907/apsxml
Diritti
closed access
license:copyright editore
FVG url
https://arts.units.it/request-item?handle=11368/2941996
Soggetti
  • Nuclear and High Ener...

  • heavy ion

  • flow

  • STAR

  • RHIC

Web of Science© citazioni
57
Data di acquisizione
Mar 26, 2024
Visualizzazioni
1
Data di acquisizione
Apr 19, 2024
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