Frankfurt 2014 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 33: Schwerionenkollisionen und QCD Phasen
HK 33.6: Vortrag
Mittwoch, 19. März 2014, 18:00–18:15, HZ 6
Real and virtuell photon emission within effective quark-meson models — •Falk Wunderlich1,2 and Burkhard Kämpfer1,2 — 1Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany — 2Institut für Theoretische Physik, TU Dresden, Zellescher Weg 17, 01062 Dresden
Certain aspects of the behaviour of strongly interacting matter can be understood in terms of effective models. Among such models are the quark-meson models. With a suitable choice of parameters and field content their phase diagram exhibits a 1st order phase transition that terminates in a critical point at nonzero chemical potential. Including the electromagnetic sector we investigate the dependence of the real and virtual photon rates on temperature and chemical potential with emphasis on peculiarities near the critical point.