Chiral-symmetry restoration at finite densities in Coulomb-gauge QCD

Journal Article · Sat Mar 15 04:00:00 EST 1986 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.33.1785· OSTI ID:6053647

Kocic, A

Using the Schwinger-Dyson equation in the Hartree-Fock approximation, we show that, within a potential model motivated by the QCD Hamiltonian in the Coulomb gauge, chiral symmetry is restored at finite densities. Two cases are studied: a delta-function potential and a linear confining potential. For the former case the phase diagram is obtained analytically, whereas for the latter case numerical techniques are used. The values of physical quantities calculated for the linear confining model are consistently smaller than the experimental ones indicating that a potential with additional short-range attraction is needed to describe the quark interaction in the high-density regime.

• Research Organization: Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801
• OSTI ID: 6053647
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 33:6; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645301 -- High Energy Physics-- Particle Invariance Principles & Symmetries-- General-- (-1987)
645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BETHE-SALPETER EQUATION
CHIRAL SYMMETRY
COLOR MODEL
COMPOSITE MODELS
DIAGRAMS
DISTANCE
EQUATIONS
FIELD THEORIES
GAUGE INVARIANCE
HAMILTONIANS
HARTREE-FOCK METHOD
INTERACTION RANGE
INVARIANCE PRINCIPLES
LADDER APPROXIMATION
LIE GROUPS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MATTER
PARTICLE MODELS
PERTURBATION THEORY
PHASE DIAGRAMS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUANTUM OPERATORS
QUARK MATTER
QUARK MODEL
QUARKONIUM
SU GROUPS
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS