Heavy ion collisions and lattice QCD at finite baryon density

Details Heavy ion collisions and lattice QCD at finite baryon density Heavy ion collisions and lattice QCD at finite baryon density

2004-04-05

arxiv.org/abs/nucl-th/0404009v2

J.Phys. G30 (2004) S1271-S1274

Physics

Nuclear Physics

Nuclear Theory

To appear in the proceedings of 17in International Conference on Ultra Relativistic Nucleus-Nucleus Collisions (Quark Matter 2

Scientific paper

10.1088/0954-3899/30/8/106

We discuss a relation between the QCD thermodynamics obtained from a statistical analysis of particle production in heavy ion collisions at SPS and RHIC energies and recent LGT results at finite chemical potential. We show that basic thermodynamic properties obtained from the phenomenological statistical operator of a hadron resonance gas that describes particle yields in heavy ion collisions are consistent with recent LGT results. We argue that for $T\leq T_c$ the equation of state derived from Monte--Carlo simulations of two quark--flavor QCD at finite chemical potential can be well described by a hadron resonance gas when using the same set of approximations as used in LGT calculations. We examine the influence of a finite quark mass on the position of the deconfinement transition in temperature and chemical potential plane.

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