Chiral phase transition in an extended linear sigma model: Initial results

Wolf, György and Kovács, Péter and Szép, Zsolt (2015) Chiral phase transition in an extended linear sigma model: Initial results. ACTA PHYSICA POLONICA B PROCEEDINGS SUPPLEMENT, 8 (1). pp. 169-174. ISSN 1899-2358

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Abstract

We investigate the scalar meson mass dependence on the chiral phase transition in the framework of an SU(3), (axial)vector meson extended lin- ear sigma model with additional constituent quarks and Polyakov loops. We determine the parameters of the Lagrangian at zero temperature in a hybrid approach, where we treat the mesons at tree-level, while the con- stituent quarks at 1-loop level. We assume two nonzero scalar condensates and together with the Polyakov-loop variables we determine their temper- ature dependence according to the 1-loop level field equations.

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