Aleksandr Dubinin (IFT)

Mott-hadron resonance gas and lattice QCD thermodynamics

We (D.Blaschke, A.D., L.Turko) present an effective model for the generic behavior of hadron masses and phase shifts at finite temperature which shares basic features with recent lattice QCD results within the PNJL model for correlations in quark matter. On this basis we obtain the transition between a hadron resonance gas phase and the quark gluon plasma in the spirit of the generalized Beth-Uhlenbeck approach where the Mott dissociation of hadrons is encoded in the hadronic phase shifts. We find that the restriction to low-lying hadronic channels is justified by the rather low chiral transition temperature found in recent lattice QCD thermodynamics results.