Speaker
Description
Quantum Chromodynamics (QCD) predicts the existence of a deconfined state of matter called Quark-Gluon Plasma (QGP) at sufficiently high-temperature and/or high-energy density. In order to investigate the phase diagram of QCD matter, the first phase of the Beam Energy Scan (BES-I) program started at the Relativistic Heavy Ion Collider (RHIC) in the year 2010. In continuation of BES-I, a high statistics dataset from Au+Au collisions at $\sqrt{s_{NN}}$ = 54.4 GeV was recorded by the STAR experiment at RHIC in the year 2017. The transverse momentum ($p_{T}$) spectra of identified hadrons are essential to study the bulk properties such as integrated yield (dN/dy), average transverse momenta ($\langle p_{T} \rangle$), particle ratios, and freeze-out parameters of the medium produced. The systematic study of bulk properties can shed light on the particle production mechanism in heavy-ion collisions.
In this talk, we will present the $p_{T}$-spectra of hadrons ($\pi^{\pm}$, $K^{\pm}$, p, and $\bar{p}$) at mid-rapidity ($|y|<$ 0.1) in Au+Au collisions at $\sqrt{s_{NN}}$ = 54.4 GeV. The centrality dependence of dN/dy, $\langle p_{T} \rangle$, particle ratios, chemical freeze-out and kinetic freeze-out parameters will also be presented and compared with the measurements at other beam energies.
| Present via | Online |
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