Conditions driving chemical freeze-out

Abstract

We propose the entropy density as the thermodynamic condition driving best the chemical freeze-out in heavy-ion collisions. Taking its value from lattice calculations at zero chemical potential, we find that it is excellent in reproducing the experimentally estimated freeze-out parameters. The two characteristic endpoints in the freeze-out diagram are reproduced as well.

8 pages, 5 eps figures

References in corpus (2)

• The QCD phase diagram: A comparison of lattice and hadron resonance gas model calculations
• The influence of strange quarks on QCD phase diagram and chemical freeze-out: Results from the hadron resonance gas model

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