Published May 2004 | Version v1
Journal article Metadata-only

NJL model at finite chemical potential in a constant magnetic field

Creators

  • 1. Hiroshima Univ., Information Media Center, Higashi-Hiroshima, Hiroshima (Japan)
  • 2. Hiroshima Univ., Dept. of Physics, Higashi-Hiroshima, Hiroshima (Japan)

Description

We investigate the influence of an external magnetic field on chiral symmetry breaking in the Nambu-Jona-Lasinio (NJL) model at finite temperature and chemical potential. According to the Fock-Schwinger proper-time method, we calculate the effective potential in the leading order of the 1/Nc expansion. The phase boundary dividing the symmetric phase and the broken phase is illustrated numerically. A complex behavior of the phase boundary is found for large chemical potential. (author)

Additional details

Publishing Information

Journal Title
Progress of Theoretical Physics, Supplement
Journal Issue
no.153
Journal Page Range
p. 321-324
ISSN
0375-9687

Conference

Title
International workshop on finite density QCD
Dates
10-12 Jul 2003
Place
Nara (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
35066676
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHIRAL SYMMETRY; COLOR MODEL; COUPLING CONSTANTS; FLAVOR MODEL; LAGRANGIAN FUNCTION; NUCLEAR STRUCTURE; PHASE TRANSFORMATIONS; POTENTIALS; QUANTUM CHROMODYNAMICS; QUARK-GLUON INTERACTIONS; STRONG-COUPLING MODEL; SU GROUPS; SYMMETRY BREAKING; TEMPERATURE DEPENDENCE
Descriptors DEC
COMPOSITE MODELS; FIELD THEORIES; FUNCTIONS; INTERACTIONS; LIE GROUPS; MATHEMATICAL MODELS; PARTICLE INTERACTIONS; PARTICLE MODELS; QUANTUM FIELD THEORY; QUARK MODEL; SYMMETRY; SYMMETRY GROUPS

Optional Information

Notes
11 refs., 2 figs.