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

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 (ver...

Full description

Saved in:
Bibliographic Details
Main Authors: Adam, Jaroslav (Author) , Deppner, Ingo Martin (Author) , Herrmann, Norbert (Author) , Weidenkaff, Philipp (Author)
Corporate Author: STAR Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 7 February 2020
In: Physical review
Year: 2020, Volume: 101, Issue: 2
ISSN:2469-9993
DOI:10.1103/PhysRevC.101.024905
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevC.101.024905
Get full text
Author Notes:J. Adam, I.M. Deppner, N. Herrmann, P. Weidenkaff [und 346 weitere] (STAR Collaboration)
Description
Summary: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.
Item Description:Gesehen am 07.04.2020
SNN steht unter dem Wurzelzeichen
Physical Description:Online Resource
ISSN:2469-9993
DOI:10.1103/PhysRevC.101.024905