MIT bag model with chiral solitons
A chiral-invariant version of the MIT bag model is solved numerically including the (sigma,..pi..,quark) interactions of the chiral-soliton model based on the Gell-Mann--Levy theory of hidden chiral symmetry. Rafelski's virial theorem is extended to the case of bagged quarks and provides a check of the numerical solutions. For strong meson-quark coupling, the bag plays almost no role and we recover a description of the nucleon similar to that of Birse and Banerjee. In the opposite limit, where the bag-confined quarks interact weakly with the sigma and ..pi.. mesons, we have a picture similar to the cloudy-bag model. Consideration of the pion-nucleon sigma commutator favors the latter picture.
- Research Organization:
- Bonner Nuclear Laboratories, Physics Department, Rice University, Houston, Texas 77251
- OSTI ID:
- 5714298
- Journal Information:
- Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 33:9; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645303 -- High Energy Physics-- Particle Invariance Principles & Symmetries-- Applications to Strong Interactions-- (-1987)
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BAG MODEL
BARYONS
BOSONS
BOUNDARY CONDITIONS
CHIRAL SYMMETRY
COMPOSITE MODELS
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
FERMIONS
HADRONS
HYPERONS
INTERACTIONS
MATHEMATICAL MODELS
MESONS
NUCLEAR MODELS
NUMERICAL SOLUTION
PARTICLE INTERACTIONS
PARTICLE MODELS
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUARK MODEL
QUARKS
QUASI PARTICLES
SIGMA BARYONS
SIGMA PARTICLES
SOLITONS
STRANGE PARTICLES
STRONG-COUPLING MODEL
SYMMETRY
SYMMETRY BREAKING
WEAK-COUPLING MODEL