Spectrum of soft mode with thermal mass of quarks above critical temperature

Details Spectrum of soft mode with thermal mass of quarks above critical temperature Spectrum of soft mode with thermal mass of quarks above critical temperature

2007-03-04

arxiv.org/abs/hep-ph/0703037v1

Int.J.Mod.Phys.E16:2394-2399,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 5 figures, contribution to the proceedings of the 19th International Conference on Ultra-Relativistic Nucleus-Nucleus

Scientific paper

10.1142/S0218301307007994

We study effects of a thermal-quark mass and Landau damping of quarks on the chiral phase transition and its soft modes at finite temperature. For this purpose we employ a simple model with the quark propagator obtained in the hard thermal loop approximation. We show that the chiral phase transition is second order even if quark have a finite thermal mass, and the thermal mass suppresses the chiral condensate. We argue that mesonic spectra have a large width due to scattering between gluons and quarks, and the van Hove singularity at threshold.

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