Nonperturbative self-consistent unitary loop corrections to Skyrmion masses
Journal Article
·
· Physical Review, D (Particles Fields); (USA)
- Department of Physics, Purdue University, West Lafayette, Indiana 47907 (USA)
Quantum chromodynamics (QCD) effectively reduces to a nonlinear meson theory in the color-number {ital N}{sub {ital c}}{r arrow}{infinity} limit. The nucleon and {Delta} masses arising as solitons from such a theory usually turn out to be too large if phenomenological values are used for the meson parameters. Within a static-baryon approximation, however, we find that soft nonperturbative self-consistent unitary hadron-loop corrections (corresponding to quark-loop higher-1/{ital N}{sub {ital c}} orders in QCD) can lower these masses by the kind of magnitude needed to make them consistent with experiment, whereas a first-order 1/{ital N}{sub {ital c}} correction is much smaller.
- OSTI ID:
- 6915953
- Journal Information:
- Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 41:5; ISSN PRVDA; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BAG MODEL
BARYONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
FERMIONS
FIELD THEORIES
HADRONS
ISOSPIN
MASS FORMULAE
MATHEMATICAL MODELS
NUCLEONS
P WAVES
PARTIAL WAVES
PARTICLE MODELS
PARTICLE PROPERTIES
PHASE SHIFT
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
QUASI PARTICLES
REGGE TRAJECTORIES
SOLITONS
STRING MODELS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BAG MODEL
BARYONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
FERMIONS
FIELD THEORIES
HADRONS
ISOSPIN
MASS FORMULAE
MATHEMATICAL MODELS
NUCLEONS
P WAVES
PARTIAL WAVES
PARTICLE MODELS
PARTICLE PROPERTIES
PHASE SHIFT
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
QUASI PARTICLES
REGGE TRAJECTORIES
SOLITONS
STRING MODELS