Nambu-Jona-Lasinio model of dense three-flavor matter with axial anomaly: The low temperature critical point and BEC-BCS diquark crossover

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.125010· OSTI ID:21408105

Abuki, Hiroaki ^[1]; Baym, Gordon ^[2]; Hatsuda, Tetsuo; Yamamoto, Naoki ^[3]

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1. Department of Physics, Tokyo University of Science, Tokyo 162-8601 (Japan)
2. Department of Physics, University of Illinois, 1110 W. Green Street, Urbana, Illinois 61801 (United States)
3. Department of Physics, University of Tokyo, Tokyo 113-0033 (Japan)

We study the QCD phase structure in the three-flavor Nambu-Jona-Lasinio model, incorporating the interplay between the chiral and diquark condensates induced by the axial anomaly. We demonstrate that for an appropriate range of parameters of the model, the interplay leads to the low temperature critical point in the phase structure predicted by a previous Ginzburg-Landau analysis. We also show that a Bose-Einstein condensate (BEC) of diquark molecules emerges in the intermediate density region, and as a result, a BEC-BCS crossover is realized with increasing quark chemical potential.

• OSTI ID: 21408105
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 12; Other Information: DOI: 10.1103/PhysRevD.81.125010; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BCS THEORY
BOSE-EINSTEIN CONDENSATION
CHIRALITY
CONDENSATES
DENSITY
FLAVOR MODEL
GINZBURG-LANDAU THEORY
QUANTUM CHROMODYNAMICS
QUARK MATTER
QUARKS
SIMULATION
COMPOSITE MODELS
FERMIONS
FIELD THEORIES
MATHEMATICAL MODELS
MATTER
PARTICLE MODELS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
QUANTUM FIELD THEORY
QUARK MODEL