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arXiv · hep-ph/0011342

NJL model in Four Dimension at Finite Temperature, Chemical Potentialand Curvature

Ashok Goyal·Meenu Dahiya
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Abstract

Two flavor Nambu-Jona-Lasinio model with N components is studied in curved space time at finite temperature and density in the leading 1/N expansion. In four space time dimension the model exhibits first order phase transition for positive curvature. Whereas in flat space an increase in temperature induces a second order phase transition even at finite density, in curved space the transition becomes first order. We obtain the phase boundary in density-temperature plane and exhibit its behavior with changing curvature. A three dimensional plot of the phase boundary in $μ$-T-R space is drawn.

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Ashok Goyal, Meenu Dahiya. 2000-11-28. NJL model in Four Dimension at Finite Temperature, Chemical Potentialand Curvature. https://doi.org/10.1088/0954-3899%2F27%2F8%2F312

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