Chemical and Thermal Freeze-Out Parameters from 1 to 200 A.GeV

Details Chemical and Thermal Freeze-Out Parameters from 1 to 200 A.GeV Chemical and Thermal Freeze-Out Parameters from 1 to 200 A.GeV

1999-03-28

arxiv.org/abs/nucl-th/9903063v2

Phys.Rev. C60 (1999) 054908

Physics

Nuclear Physics

Nuclear Theory

RevTeX 10 pages, 10 Postscript figures

Scientific paper

10.1103/PhysRevC.60.054908

The present knowledge about hadrons produced in relativistic heavy ion collisions is compatible with chemical freeze-out happening when the energy density divided by the particle density reaches the value of 1 GeV. This observation is used to determine the energy dependence of the chemical freeze-out parameters T_{ch} and mu_B^{ch} for beam energies varying between 1 and 200 A.GeV. The consequences of this energy dependence are studied for various particle ratios. Predictions for particle ratios at beam energy 40 A.GeV are presented. The conditions for thermal freeze-out are also determined. These correspond either to an energy density of 45 MeV/fm**3 or to a particle density of 0.05/fm**3.

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