Lattice QCD Constraints on the Nuclear Equation of State

Details Lattice QCD Constraints on the Nuclear Equation of State Lattice QCD Constraints on the Nuclear Equation of State

2006-05-25

arxiv.org/abs/nucl-th/0605069v2

Eur.Phys.J.C48:531-543,2006

Physics

Nuclear Physics

Nuclear Theory

13 pages, 11 figures

Scientific paper

10.1140/epjc/s10052-006-0052-2

Based on the quasi-particle description of the QCD medium at finite temperature and density we formulate the phenomenological model for the equation of state that exhibits crossover or the first order deconfinement phase transition. The models are constructed in such a way to be thermodynamically consistent and to satisfy the properties of the ground state nuclear matter comply with constraints from intermediate heavy--ion collision data. Our equations of states show quite reasonable agreement with the recent lattice findings on temperature and baryon chemical potential dependence of relevant thermodynamical quantities in the parameter range covering both the hadronic and quark--gluon sectors. The model predictions on the isentropic trajectories in the phase diagram are shown to be consistent with the recent lattice results. Our nuclear equations of states are to be considered as an input to the dynamical models describing the production and the time evolution of a thermalized medium created in heavy ion collisions in a broad energy range from SIS up to LHC.

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