Landau Potential Study of the Chiral Phase Transition in a QCD-Like Theory

Details Landau Potential Study of the Chiral Phase Transition in a QCD-Like Theory Landau Potential Study of the Chiral Phase Transition in a QCD-Like Theory

2007-02-08

arxiv.org/abs/hep-ph/0702082v1

Int.J.Mod.Phys.E16:2276-2281,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages 4 figures, to appear in a special issue of Int. J. of Mod. Phys. E (the proceedings of the 19th International Conferen

Scientific paper

10.1142/S0218301307007805

We investigate the chiral phase transition of a QCD-like theory, based the shape change of the effective potential near the critical point. The potential is constructed with the auxiliary field method, and a source term coupled to the field is introduced in order to compute the potential shape numerically. We also generalize the potential so as to have two independent order parameters, the quark scalar density and the number density. We find a tri-critical point locating at (T,mu)=(97, 203) MeV, and visualize it as the merging point of three potential minima.

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