Color superconductivity vs. pseudoscalar condensation in a three-flavor NJL model

Abstract

We calculate numerically the phase diagram of the three-flavor Nambu-Jona-Lasinio model at zero and finite temperature as a function of the up, down, and strange quark chemical potentials. We focus on the competition between pseudoscalar condensation and color superconductivity. We find that the two types of phases are separated by first-order transitions.

Comments: 8 pages, 7 figures, revtex. References added, minor other changes, conclusions unchanged. To appear in PRD