Strangeness Production in Au--Au collisions at $\sqrt{s_{NN}}=62.4$ GeV

Abstract

We obtain strangeness production as function of centrality in a statistical hadronization model analysis of all experimental hadron production data in Au--Au collisions at $\sqrt{s_{NN}}=62.4\text{GeV}$. Our analysis describes successfully the yield of strange and multi-strange hadrons recently published. We explore condition of hadronization as a function of centrality and find universality for the case of chemical non-equilibrium in the hadron phase space corresponding to quark--gluon plasma (QGP) in chemical equilibrium.

Comments: 6 pages, 2 figures, proceedings for SQM 2011 conference