Bulk properties of the system formed in Au+Au collisions at sNN =14.5 GeV at the BNL STAR detector

STAR Collaboration

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

We report systematic measurements of bulk properties of the system created in Au+Au collisions at sNN=14.5 GeV recorded by the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The transverse momentum spectra of π±, K±, and p(p) are studied at midrapidity (|y|<0.1) for nine centrality intervals. The centrality, transverse momentum (pT), and pseudorapidity (η) dependence of inclusive charged particle elliptic flow (v2), and rapidity-odd charged particles directed flow (v1) results near midrapidity are also presented. These measurements are compared with the published results from Au+Au collisions at other energies, and from Pb+Pb collisions at sNN=2.76 TeV. The results at sNN=14.5 GeV show similar behavior as established at other energies and fit well in the energy dependence trend. These results are important as the 14.5-GeV energy fills the gap in μB, which is of the order of 100 MeV, between sNN=11.5 and 19.6 GeV. Comparisons of the data with UrQMD and AMPT models show poor agreement in general.

原文English
文章編號024905
期刊Physical Review C
101
發行號2
DOIs
出版狀態Published - 2020 二月

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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