Modified Bag Models for the Quark Gluon Plasma Equation of State

Abstract

The modified versions of the bag model equation of state (EoS) are considered. They are constructed to satisfy the main qualitative features observed for the quark-gluon plasma EoS in the lattice QCD calculations. A quantitative comparison with the lattice results at high temperatures T are done in the SU(3) gluodynamics and in the full QCD with dynamical quarks. Our analysis advocates a negative value of the bag constant B.

We have added the fit for entropy density, pressure over energy density and speed of sound. The recent lattice results from Wuppertal-Budapest collaboration for QCD with quarks are fitted

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• Scalar perturbations in cosmological models with quark nuggets
• The effect of dynamical quark mass in the calculation of strange quark star structure
• Theory of heavy-quarks contribution to the quark-gluon plasma viscosity
• Hydrodynamics of a quark droplet II: Implications of a non-zero baryon chemical potential
• Effective model for pure Yang-Mills theory on ${\mathbb{T}}^2\times {\mathbb{R}}^2$ with Polyakov loops