2+1 Flavor Polyakov--Nambu--Jona-Lasinio Model at Finite Temperature and Nonzero Chemical Potential

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dc.creatorFu, Wei-jie
dc.creatorZhang, Zhao
dc.creatorLiu, Yu-xin
dc.date2007-11-01
dc.date.accessioned2026-07-07T11:12:51Z
dc.date.available2026-07-07T11:12:51Z
dc.descriptionWe extend the Polyakov-loop improved Nambu--Jona-Lasinio (PNJL) model to 2+1 flavor case to study the chiral and deconfinement transitions of strongly interacting matter at finite temperature and nonzero chemical potential. The Polyakov-loop, the chiral susceptibility of light quarks (u and d) and the strange quark number susceptibility as functions of temperature at zero chemical potential are determined and compared with the recent results of Lattice QCD simulations. We find that there is always an inflection point in the curve of strange quark number susceptibility accompanying the appearance of the deconfinement phase, which is consistent with the result of Lattice QCD simulations. Predictions for the case at nonzero chemical potential and finite temperature are made as well. We give the phase diagram in terms of the chemical potential and temperature and find that the critical endpoint (CEP) moves down to low temperature and finally disappears with the decrease of the strength of the 't Hooft flavor-mixing interaction.
dc.description27 pages, 15 figures, accepted for publication in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0711.0154
dc.identifierhttp://arxiv.org/abs/0711.0154
dc.identifierPhys.Rev.D77:014006,2008
dc.identifierdoi:10.1103/PhysRevD.77.014006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191518
dc.subjectHigh Energy Physics - Phenomenology
dc.title2+1 Flavor Polyakov--Nambu--Jona-Lasinio Model at Finite Temperature and Nonzero Chemical Potential
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