Chemical freeze-out parameters in Beam Energy Scan Program of STAR at RHIC

Abstract

The STAR experiment at RHIC has completed its first phase of the Beam Energy Scan (BES-I) program to understand the phase structure of the quantum chromodynamics (QCD). The bulk properties of the system formed in Au+Au collisions at different center of mass energy $\sqrt{s_{NN}}=$ 7.7, 11.5, 19.6, 27, and 39 GeV have been studied from the data collected in the year 2010 and 2011. The centrality and energy dependence of mid-rapidity ($|y|$ < 0.1) particle yields, and ratios are presented here. The chemical freeze-out parameters are extracted using measured particle ratios within the framework of a statistical model.

arXiv comment6 pages, 9 figures, presented at the International Symposium on Multiparticle Dynamics (ISMD 2014), Bologna, Italy, September 8-12, 2014

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• When Is Holography Consistent?
• The Trajectory of the Cosmic Plasma Through the Quark Matter Phase Diagram
• Field Theories Without a Holographic Dual
• Chemical Freeze-out Parameters via a Non-perturbative QCD Approach
• On The Existence of a Holographic Description of the LHC Quark-Gluon Plasmas