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Phase transition and thermodynamics of a hot and dense system in a scaled NJL model

J. Cugnon·M. Jaminon·B. Van den Bossche
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Abstract

The chiral phase transition of a hot and dense system of quarks is studied within a modified SU(3) NJL lagrangian that implements the QCD scale anomaly. The u- and s-quark condensates can feel or not the same chiral restoration depending on the considered region of the 3-dimension space T_c(μ_uc,μ_sc). The temperature behaviour of the pressure and of the energy and entropy densities of the u- and s-quark system is investigated. At high temperature, the non-vanishing bare s-quark mass only modifies slightly the usual behaviour associated with an ideal quark gas.

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J. Cugnon, M. Jaminon, B. Van den Bossche. 1997-02-03. Phase transition and thermodynamics of a hot and dense system in a scaled NJL model. https://doi.org/10.1016/0375-9474(95)00501-3

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