Influence of the isospin and hypercharge chemical potentials on the location of the critical end point in theμB−Tphase diagram of theSU(3)L×SU(3)Rchiral quark model

2007/10/31 by Péter Kovács, P. Kovacs, Zs. Szép +1 · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #High-Energy Particle Collisions Research #High-pressure geophysics and materials #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.77.065016

published as Phys.Rev.D77:065016,2008 · RevTeX4, 13 pages, 6 figures, version accepted for publication in Phys. Rev. D

arxiv created 2008/02/03 · openalex publication_date 2008/03/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

We investigate the influence of the asymmetric quark matter (\ensuremathρ_u\ensuremath≠\ensuremathρ_d\ensuremath≠\ensuremathρ_s) on the mass of the quasiparticles and the phase diagram of the chiral quark model parametrized at the one-loop level of the renormalized theory, using the optimized perturbation theory for the resummation of the perturbative series. The effect of various chemical potentials introduced in the grand canonical ensemble is investigated with the method of relativistic many-body theory. The temperature dependence of the topological susceptibility is estimated with the help of the Witten-Veneziano mass formula.

Citations

• Topological susceptibility at zero and finite T in SU(3) Yang-Mills theory
• Analysis ofUA(1)symmetry breaking and restoration effects on the scalar-pseudoscalarmeson spectrum
• ηandη′mesons in the Dyson-Schwinger approach at finite temperature
• QCD at Finite Isospin Density

Cited by

• Three-flavor chiral phase structure in hot and dense QCD matter