delta (980) as a four-quark state and the radiative decays of vector and scalar mesons
Journal Article
·
· Phys. Rev., D; (United States)
A large phenomenological value for the decay rate GAMMA (delta ..-->.. ..gamma gamma..) contradicts the very small values obtained in a model assuming the delta (980) is a two-quark state, implying that the delta should be treated as a four-quark state. The Okuba-Zweig-Iizuka rule then gives a large ratio of the delta-rho-phi to delta-rho-..omega.. couplings which is opposite to previous estimates based on vector dominance. Previous calculations of delta radiative decays and three-body radiative decays of vector mesons are modified and new decay rates are obtained.
- Research Organization:
- Department of Physics, Seton Hall University, South Orange, New Jersey 07079
- OSTI ID:
- 6150425
- Journal Information:
- Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 19:11; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BRANCHING RATIO
COMPOSITE MODELS
DECAY
DELTA-966 RESONANCES
ELECTROMAGNETIC PARTICLE DECAY
ELEMENTARY PARTICLES
HADRONS
MANY-BODY PROBLEM
MASSLESS PARTICLES
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
PARTICLE DECAY
PARTICLE MODELS
PHOTONS
QUARK MODEL
RADIATIVE DECAY
RESONANCE PARTICLES
SCALAR MESONS
THREE-BODY PROBLEM
VECTOR MESONS
WEAK PARTICLE DECAY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BRANCHING RATIO
COMPOSITE MODELS
DECAY
DELTA-966 RESONANCES
ELECTROMAGNETIC PARTICLE DECAY
ELEMENTARY PARTICLES
HADRONS
MANY-BODY PROBLEM
MASSLESS PARTICLES
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
PARTICLE DECAY
PARTICLE MODELS
PHOTONS
QUARK MODEL
RADIATIVE DECAY
RESONANCE PARTICLES
SCALAR MESONS
THREE-BODY PROBLEM
VECTOR MESONS
WEAK PARTICLE DECAY