Scalar-pseudoscalar meson spectrum in SU(3) PNJL model

Details Scalar-pseudoscalar meson spectrum in SU(3) PNJL model Scalar-pseudoscalar meson spectrum in SU(3) PNJL model

2009-07-11

arxiv.org/abs/0907.1972v1

PoS Confinement8:086,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at the 8th International Conference on Quark Confinement and the Hadron Spectrum, Mainz, Germany, September 1-6, 20

Scientific paper

We investigate the modifications of mesonic properties in a hot medium having in mind to use the mesonic modes as a tool to analyze the restoration of chiral and axial symmetries in the context of the SU(3) Polyakov--Nambu--Jona-Lasinio (PNJL) model. The results lead to the conclusion that the effects of the Polyakov loop are fundamental for reproducing lattice findings. It is found that the restoration of chiral symmetry in the PNJL model occurs in a small range of temperature (smaller that in the Nambu--Jona-Lasinio (NJL)), and the topological susceptibility reproduces well the lattice results around $T/T_c^\chi\approx 1.0$.

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