Influence of the isospin and hypercharge chemical potentials on the location of the CEP in the mu_B-T phase diagram of the SU(3)_L x SU(3)_R chiral quark model

Understand

We investigate the influence of the asymmetric quark matter (rho_u\ne rho_d\ne rho_s) on the mass of the quasiparticles and the phase diagram of the chiral quark model parametrized at 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.