Nuclear Physics & RIKEN Theory Seminar

"'An effective chiral Equation of State including hadronic and quark degrees of freedom"

Presented by Jan Steinheimer-Froschauer, Goethe University Frankfurt, Germany

Friday, September 3, 2010, 2:00 pm — Small Seminar Room, Bldg. 510

We combine, in a single model, a well-established flavor-SU(3) hadronic model with a quark-gluon description of the highly excited matter. This allows us to study the chiral-symmetry and confinement-deconfinement phase structure of strongly interacting matter at high temperatures and densities. In addition we obtain an equation of state of hadronic and quark matter that is applicable over a wide range of thermodynamical conditions. I will present results on the thermodynamics of the model, compared to recent lattice data, as well as the phase structure in temperature and baryochemical potential. In this context I will also highlight the influence of heavy hadronic resonances on the chiral phase transition. Furthermore I will discuss the temperature dependence of the baryon number susceptibilities for different parametrizations of the model and compare the results to lattice data and results obtained with a basic PNJL model.

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