Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-06-23
Acta Phys.Hung. A22 (2005) 343-353
Physics
High Energy Physics
High Energy Physics - Phenomenology
Talk given at BUDAPEST'2004 Workshop on 'Hot and Dense Matter in Relativistic Heavy Ion Physics', Budapest, March 24-27, 2004
Scientific paper
10.1556/APH.22.2005.3-4.21
We compare the statistical thermodynamics of hadron resonance gas with recent LGT results at finite chemical potential. 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 is consistent with that of a hadron resonance gas when applying the same set of approximations as used in LGT calculations. We indicate the relation of chemical freezeout conditions obtained from a detailed analysis of particle production in heavy ion collisions with the critical conditions required for deconfinement. We argue that the position of a hadron--quark gluon boundary line in temperature chemical potential plane can be determined in terms of the resonance gas model by the condition of fixed energy density.
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