Identified Light and Strange Hadron Spectra at √sNN = 14.5 GeV with STAR at RHIC BES I

32nd Winter Workshop on Nuclear Dynamics

Brandenburg, James Daniel^1

Rice University, Houston

TX, United States^1

关键词: Au+Au collisions;    Center-of-mass energies;    Collision dynamics;    Collision energies;    First-order phase transitions;    Partonic interactions;    Star measurements;    Transverse momenta;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/736/1/012005/pdf
DOI  :  10.1088/1742-6596/736/1/012005

来源: IOP

【 摘 要 】

With the recently measured Au+Au collisions at √sNN=14.5 GeV, RHIC completed its first phase of the Beam Energy Scan (BES) program. The main motivation of the BES program is the search for a conjectured critical point and possible first order phase transition. Amongst the various collision energies of 7.7, 11.5, 19.6, 27, and 39 GeV, that have been previously presented by STAR, collisions at 14.5 GeV will provide data set in the relatively large chemical potential gap between the 11.5 and 19.6 GeV center-of-mass energies. In this contribution, we report new STAR measurements of Au+Au at √sNN=14.5 GeV that include identified light particle RCPand spectra, as well as measurements of the strange hadrons (K0s, A, ξ, and ω). The spectra from both light and strange particles cover a significant range of the intermediate transverse momentum (2 T