Phase diagrams in the three-flavor Nambu-Jona-Lasinio model with the Polyakov loop

Journal Article · Sun Jun 01 04:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.77.114028· OSTI ID:21205091

Fukushima, Kenji ^[1]

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1. Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan)

We present extensive studies on hot and dense quark matter with two light and one heavy flavors in the Nambu-Jona-Lasinio model with the Polyakov loop (so-called PNJL model). First we discuss prescription dependence in choosing the Polyakov loop effective potential and propose a simple and rather sensible ansatz. We look over quantitative comparison to the lattice measurement to confirm that the model captures thermodynamic properties correctly. We then analyze the phase structure by changing the temperature, quark chemical potential, quark masses, and coupling constants. We particularly investigate how the effective U{sub A}(1) restoration and the induced vector-channel interaction at finite density would affect the QCD critical point.

• OSTI ID: 21205091
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 77; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CAPTURE
COMPARATIVE EVALUATIONS
COUPLING CONSTANTS
DENSITY
FLAVOR MODEL
INTERACTIONS
MASS
PHASE DIAGRAMS
QUANTUM CHROMODYNAMICS
QUARK MATTER
QUARKS
THERMODYNAMIC PROPERTIES