Berlin 2005 – scientific programme
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HK: Physik der Hadronen und Kerne
HK 26: Theorie
HK 26.3: Talk
Tuesday, March 8, 2005, 15:00–15:15, TU MA004
The QCD equation of state at finite temperature and baryon density within a quasi-particle model — •Marcus Bluhm1,2, Burkhard Kämpfer1, and Gerhard Soff2 — 1Forschungszentrum Rossendorf, Dresden, Germany — 2Institut für Theoretische Physik, TU Dresden, Dresden, Germany
We present a quasi-particle model for the equation of state of QCD matter. The model is compared in detail with lattice QCD calculations at finite temperature and baryo-chemical potential which became accessible only recently. Special focus is put onto the expansion coefficients of the corresponding Taylor series of the thermodynamic potential from which all thermodynamic quantities, like susceptibilities, follow in a thermodynamicly self-consistent way.
Within the Φ functional approach the chain of approximations is outlined which is needed in order to derive our phenomenological model from QCD.