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

• Verfasst von: Adam, Jaroslav [VerfasserIn]
• Verfasst von: Deppner, Ingo Martin [VerfasserIn]
• Verfasst von: Herrmann, Norbert [VerfasserIn]
• Verfasst von: Weidenkaff, Philipp [VerfasserIn]
• Titel: Bulk properties of the system formed in Au plus Au collisions at √sNN=14.5 GeV at the BNL STAR detector
• Körperschaft: STAR Collaboration [VerfasserIn]
• Verf.angabe: J. Adam, I.M. Deppner, N. Herrmann, P. Weidenkaff [und 346 weitere] (STAR Collaboration)
• E-Jahr: 2020
• Jahr: 7 February 2020
• Umfang: 25 S.
• Illustrationen: Diagramme
• Fussnoten: Gesehen am 07.04.2020 ; SNN steht unter dem Wurzelzeichen
• Titel Quelle: Enthalten in: Physical review
• Ort Quelle: Woodbury, NY : Inst., 2016
• Jahr Quelle: 2020
• Band/Heft Quelle: 101(2020,2) Artikel-Nummer 024905, Seite 1-25
• ISSN Quelle: 2469-9993
• DOI: doi:10.1103/PhysRevC.101.024905
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: dependence
• Sach-SW: energy
• Sach-SW: finite-temperature
• Sach-SW: model
• Sach-SW: nucleus-nucleus collisions
• Sach-SW: particle identification
• Sach-SW: perspective
• Sach-SW: qcd
• Sach-SW: quark-gluon plasma
• Sach-SW: time projection chamber
• K10plus-PPN: 1694175448

Abstract

We report systematic measurements of bulk properties of the system created in Au + Au collisions at root S-NN = 14.5 GeV recorded by the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The transverse momentum spectra of pi(+/-), K-+/-, and p((p) over bar) are studied at midrapidity (vertical bar y vertical bar < 0.1) for nine centrality intervals. The centrality, transverse momentum (p(T)), and pseudorapidity (eta) dependence of inclusive charged particle elliptic flow (v(2)), and rapidity-odd charged particles directed flow (v(1)) 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 root S-NN = 2.76 TeV. The results at root S-NN = 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 mu(B), which is of the order of 100 MeV, between root S-NN = 11.5 and 19.6 GeV. Comparisons of the data with UrQMD and AMPT models show poor agreement in general.