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Bonn 2010 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 51: Schwerionenkollisionen und QCD Phasen VI

HK 51.6: Vortrag

Donnerstag, 18. März 2010, 18:00–18:15, HG II

On the relation of quark confinement and chiral symmetry breakingJens Braun1, •Lisa M. Haas2,3, Florian Marhauser2,3, and Jan M. Pawlowski2,31Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universitat Jena, Max-Wien-Platz 1, 07743 Jena, Germany — 2Institut für Theoretische Physik, University of Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany — 3ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung mbH, Planckstr. 1, 64291 Darmstadt, Germany

We study the phase diagram of two flavour QCD at imaginary chemical potential in the chiral limit. To this end we compute order parameters for chiral symmetry breaking and quark confinement. The interrelation of quark confinement and chiral symmetry breaking is analysed with a new order parameter for the confinement phase transition. We show that it is directly related to both, the quark density as well as the Polyakov loop expectation value. Our analytical and numerical results suggest a close relation between the chiral and the confinement phase transition.

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