A NJL-based study of the QCD critical line

Details A NJL-based study of the QCD critical line A NJL-based study of the QCD critical line

2005-08-10

arxiv.org/abs/hep-ph/0508117v1

Phys.Rev. D72 (2005) 056002

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 5 figures

Scientific paper

10.1103/PhysRevD.72.056002

We employ a 3 flavor NJL model to stress some general remarks about the QCD critical line. The dependence of the critical curve on $\mu_q=(\mu_u+\mu_d)/2$ and $\mu_I=(\mu_u-\mu_d)/2$ is discussed. The quark masses are varied to confirm that, in agreement with universality arguments, the order of transition depends on the number of active flavors $N_f$. The slope of the critical curve vs. chemical potential is studied as a function of $N_f$. We compare our results with those recently obtained in lattice simulations to establish a comparison among different models.

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