Phase Diagram and Critical End Point for Strongly Interacting Quarks

Journal Article · Fri Apr 29 00:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.172301· OSTI ID:21538301

Sixue, Qin; Lei, Chang ^[1]; Huan, Chen ^[2]; Yuxin, Liu ^[1]; Roberts, Craig D ^[1]

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1. Department of Physics, Center for High Energy Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China)
2. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China)

We introduce a method based on chiral susceptibility, which enables one to draw a phase diagram in the chemical-potential-temperature plane for strongly interacting quarks whose interactions are described by any reasonable gap equation, even if the diagrammatic content of the quark-gluon vertex is unknown. We locate a critical end point at ({mu}{sup E},T{sup E}){approx}(1.0,0.9)T{sub c}, where T{sub c} is the critical temperature for chiral-symmetry restoration at {mu}=0, and find that a domain of phase coexistence opens at the critical end point whose area increases as a confinement length scale grows.

• OSTI ID: 21538301
• Journal Information: Physical Review Letters, Vol. 106, Issue 17; Other Information: DOI: 10.1103/PhysRevLett.106.172301; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHIRAL SYMMETRY
CHIRALITY
CONFINEMENT
CRITICAL TEMPERATURE
GLUONS
INTERACTIONS
PHASE DIAGRAMS
QUARKS
BOSONS
DIAGRAMS
FERMIONS
INFORMATION
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
SYMMETRY
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE