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- Title
PHASE STRUCTURE OF QCD-LIKE GAUGE THEORIES PLUS FOUR-FERMION INTERACTIONS.
- Authors
KONDO, KEI-ICHI; SHUTO, SUSUMU; YAMAWAKI, KOICHI
- Abstract
We investigate the phase structure of (QCD-like) gauged Nambu-Jona-Lasinio model (QCD-like gauge theories plus four-fermion interactions) based on the ladder Schwinger-Dyson equation with one-loop running gauge coupling. Through analytical and numerial studies, we establish two-fixed points structure, one with a large anomalous dimension γm ≃ 2 and the other with a small one γm ≃ 0. We further obtain the power critical exponents through the equation of state, which, as they stand, imply that the former fixed point is a Gaussian fixed point. We emphasize that logarithmic corrections due to the gauge interaction is crucial to obtaining an interacting continuum theory at this fixed point.
- Publication
Modern Physics Letters A, 1991, Vol 6, Issue 37, p3385
- ISSN
0217-7323
- Publication type
Article
- DOI
10.1142/S0217732391003912