A universal description for the freezeout parameters in heavy-ion collisions

Abstract

It is shown that the freezeout parameters estimated in the heavy-ion collisions all are well described by a constant value of the entropy density $s$ divided by $T^3$. The value of $s/T^3$ has been taken from the lattice QCD simulations at zero baryo-chemical potential ${\mu }_B$ and assumed to remain constant for finite ${\mu }_B$. This implies that the hadronic matter in rest frame of produced system can be determined by constant degrees of freedom. Furthermore, this condition has been used to predict the freezeout parameters at low temperatures.

7 pages, 2 eps figures, submitted to Nucl. Phys. A

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