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HK: Fachverband Physik der Hadronen und Kerne

HK 20: Theorie

HK 20.7: Vortrag

Dienstag, 13. März 2007, 18:30–18:45, C

The phase diagram of the three-flavor quark-meson model — Bernd-Jochen Schaefer¹, •Mathias Wagner², and Jochen Wambach^2,3 — ¹Institut für Physik, Karl-Franzens-Universität, A-8010 Graz, Austria — ²Institut für Kernphysik, TU Darmstadt, D-64289 Darmstadt,Germany — ³Gesellschaft für Schwerionenforschung GSI, D-64291Darmstadt,Germany

In this talk we present first results of our calculation of the chiral phase diagram of three flavor quark-meson model. The dependence of the phase boundaries on the quark masses is discussed. The results for the in-medium masses of the mesons, the pressue, the quark-number density and chiral susceptibility are compared with other model and lattice calculations. These studies are the basis for a more sophisticated treatment within a functional renormalization group approach.