The phase diagram and bulk thermodynamical quantities in the NJL model at finite temperature and density

Details The phase diagram and bulk thermodynamical quantities in the NJL model at finite temperature and density The phase diagram and bulk thermodynamical quantities in the NJL model at finite temperature and density

1999-03-19

arxiv.org/abs/nucl-th/9903048v3

Phys.Rev. C60 (1999) 055205

Physics

Nuclear Physics

Nuclear Theory

11 pages LaTeX plus 7 PS figures. One figure has been added and there are some changes in the text describing this

Scientific paper

10.1103/PhysRevC.60.055205

We reexamine the recent instanton motivated studies of Alford, Rajagopal and Wilczek, and Berges and Rajagopal in the framework of the standard SU(2) Nambu-Jona-Lasinio model. The chiral phase diagram is calculated in the temperature--density plane, and the pressure is evaluated as the function of the density. Obtaining simple approximate relations describing the $T$-$\mu$ and $T$-$p_F$ phase transition lines we find that the results of the instanton based model and that of the NJL model are identical. The diquark transition line is also given.

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