The QCD critical point from the Nambu-Jona-Lasino model with a scalar-vector interaction

Abstract

We study the critical point in the QCD phase diagram in the Nambu-Jona-Lasino (NJL) model by including a scalar-vector coupled interaction. We find that varying the strength of this interaction, which has no effect on the vacuum properties of QCD, can significantly affect the location of the critical point in the QCD phase diagram, particularly the value of the cirtical temperature. This provides a convenient way to use the NJL-based transport or hydrodynamic model to extract information about the QCD phase diagram from relativistic heavy-ion collisions.

8 pages, 4 figures

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Cited by in corpus (4)

• Enhanced yield ratio of light nuclei in heavy ion collisions with a first-order QCD phase transition
• Modern nuclear and astrophysical constraints of dense matter in a renormalized chiral approach
• Vector interaction bounds in NJL-like models from LQCD estimated curvature of the chiral crossover line
• QCD chiral condensate and pseudoscalar-meson properties in the nuclear medium at finite temperature