A chiral random matrix model with 2+1 flavors at finite temperature and density

Details A chiral random matrix model with 2+1 flavors at finite temperature and density A chiral random matrix model with 2+1 flavors at finite temperature and density

2009-12-28

arxiv.org/abs/0912.5063v1

Phys.Rev.D81:037502,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 3 figures

Scientific paper

10.1103/PhysRevD.81.037502

Phase diagram of a chiral random matrix model with the degenerate ud quarks and the s quark at finite temperature and density is presented. The model exhibits a first-order transition at finite temperature for three massless flavors, owing to the U_A(1) breaking determinant term. We study the order of the transition with changing the quark masses and the quark chemical potential, and show that the first-order transition region expands as the chemical potential increases. We also discuss the behavior of the meson masses and the susceptibilities near the critical point.

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