PNJL model at zero temperature: three-flavor case

Abstract

We propose a three-flavor version of the Polyakov-Nambu-Jona-Lasino (PNJL) model at zero temperature regime, by implementing a traced Polyakov loop ($\Phi$) dependence in the scalar, vector and 't Hooft channel strengths. We study the thermodynamics of this model, named as PNJL0, with special attention for the first order confinement/deconfinement phase transition for which $\Phi$ is the order parameter. For the symmetric quark matter case, an interesting feature observed is a strong reduction of the constituent strange quark mass ($M_s$) at the chemical potential related to point where deconfinement takes place. The emergence of $\Phi$ favors the restoration of chiral symmetry even for the strange quark. We also investigate the charge neutral system of quarks and leptons in weak equilibrium. As an application, we construct a hadron-quark phase transition with a density dependent hadronic model coupled to the SU(3) PNJL0 model. In this case, the quark side is composed by deconfined particles. This approach is used to determine mass-radius profiles compatible with recent data from the Neutron Star Interior Composition Explorer (NICER) mission.

14 pages, 11 figures. Submitted to Physical Review D

References in corpus (19)

• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy
• Relativistic Mean-Field Hadronic Models under Nuclear Matter Constraints
• The Importance of Asymptotic Freedom for the Pseudocritical Temperature in Magnetized Quark Matter
• Mesonic correlation functions at finite temperature and density in the Nambu-Jona-Lasinio model with a Polyakov loop
• The chiral and deconfinement crossover transitions: PNJL model beyond mean field
• Chiral crossover, deconfinement and quarkyonic matter within a Nambu-Jona Lasinio model with the Polyakov loop
• Baryons and the phase diagram for a large number of colors and flavors
• Thermodynamics of the PNJL model
• The pasta phase within density dependent hadronic models
• Phase of the Fermion Determinant at Nonzero Chemical Potential
• Two-solar-mass hybrid stars: a two model description with the Nambu-Jona-Lasinio quark model
• The Radius of PSR J0740+6620 from NICER and XMM-Newton Data
• Direct CP violation in beauty and charm hadron decays
• Dynamical Generation of a Repulsive Vector Contribution to the Quark Pressure
• Effects of Hadron-Quark Phase Transitions in Hybrid Stars within the NJL Model
• Correlations between critical parameters and bulk properties of nuclear matter
• Thermodynamical phases in a PNJL model at zero temperature