Dressed Polyakov loop and flavor dependent phase transitions

Journal Article · Sat Oct 01 04:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.84.074009· OSTI ID:21607767

Fukun, Xu ^[1]; Hong, Mao ^[1]; Mukherjee, Tamal K; Mei, Huang ^[1]

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1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing (China)

The chiral condensate and dressed Polyakov loop at finite temperature and density have been investigated in the framework of the N{sub f}=2+1 Nambu-Jona-Lasinio (NJL) model with two degenerate u, d quarks and one strange quark. In the case of explicit chiral symmetry breaking with physical quark masses, it is found that the phase transitions for light u, d, and s quark are sequentially happened, and the separation between the transition lines for different flavors becomes wider and wider with the increase of baryon density. For each flavor, the pseudocritical temperatures for chiral condensate and dressed Polyakov loop differ in a narrow transition range in the lower baryon density region, and the two transitions coincide in the higher baryon density region.

• OSTI ID: 21607767
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 84; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
CHIRAL SYMMETRY
CHIRALITY
COMPOSITE MODELS
CONDENSATES
D QUARKS
ELEMENTARY PARTICLES
FERMIONS
FLAVOR MODEL
HADRONS
MASS
MATHEMATICAL MODELS
PARTICLE MODELS
PARTICLE PROPERTIES
PHASE TRANSFORMATIONS
QUARK MODEL
QUARKS
S QUARKS
STRANGE PARTICLES
SYMMETRY
SYMMETRY BREAKING
U QUARKS