Abstract
We compare the statistical thermodynamics of hadron resonance gas with recent LGT results at finite chemical potential. We argue that for T≤T cthe equation of state derived from Monte-Carlo simulations of 2-quark-flavor QCD at finite chemical potential is consistent with that of a hadron resonance gas when applying the same set of approximations as used in LGT calculations. We indicate the relation of chemical freeze-out conditions obtained from a detailed analysis of particle production in heavy ion collisions with the critical conditions required for deconfinement. We argue that the position of a hadron quark-gluon boundary line in temperature chemical potential plane can be determined in terms of the resonance gas model by the condition of fixed energy density.
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Redlich, K. From chemical freeze-out to critical conditions in heavy ion collisions. Acta Phys. Hung. A 22, 343–353 (2005). https://doi.org/10.1556/APH.22.2005.3-4.21
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DOI: https://doi.org/10.1556/APH.22.2005.3-4.21