Mott-hadron resonance gas and lattice QCD thermodynamics

Abstract

We present an effective model for the generic behaviour of hadron masses and phase shifts at finite temperature which shares basic features with recent developments 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. Here we restrict ourselves to low-lying hadronic channels and perform a discussion of recent lattice QCD thermodynamics results from this perspective. We find agreement in the asymptotic regions while for the description of the transition itself the inclusion of further hadronic channels as well as a selfconsistent determination of the continuum thresholds is required.

10 pages, 3 figures, typo in Eq. (9) corrected

References in corpus (5)

• The equation of state in (2+1)-flavor QCD
• The QCD equation of state with dynamical quarks
• Parametrization of a nonlocal, chiral quark model in the instantaneous three-flavor case. Basic formulas and tables
• Polyakov-loop suppression of colored states in a quark-meson-diquark plasma
• Hadronic correlations above the chiral/deconfinement transition

Cited by in corpus (9)

• Mott dissociation of pions and kaons in hot, dense quark matter
• Supporting the search for the CEP location with nonlocal PNJL models constrained by Lattice QCD
• Hard-core Radius of Nucleons within the Induced Surface Tension Approach
• Effects of composite pions on the chiral condensate within the PNJL model at finite temperature
• Nuclear and Quark Matter at High Temperature
• In-medium effect on the thermodynamics and transport coefficients in van der Waals hadron resonance gas
• Pion and kaon in the Beth-Uhlenbeck approach
• Quark cluster expansion model for interpreting finite-T lattice QCD thermodynamics
• Additional strange resonances from Lattice QCD