Dynamical interpretation of chemical freeze-out in heavy ion collisions

Abstract

It is demonstrated that there exists a direct correlation between chemical freeze-out point and the softest point of the equation of state where the pressure divided by the energy density, $p(\epsilon )/\epsilon$, has a minimum. A dynamical model is given as an example where the passage of the softest point coincides with the condition for chemical freeze-out, namely an average energy per hadron $\approx$ 1 GeV. The sensitivity of the result to the equation of state used is discussed.

arXiv comment10 pages, 2 figures

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Cited by in corpus (7)

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• The isentropic equation of state of 2-flavor QCD
• Strangeness Production in Nuclear Matter and Expansion Dynamics
• Equation of State for Hot and Dense Matter: $\sigma$-$\omega$-$\rho$ Model with Scaled Hadron Masses and Couplings
• Towards thermodynamical consistency of qusiparticle picture
• Chiral condensate and chemical freeze-out
• Chiral condensate and Mott-Anderson freeze-out