Decay eta. --> pi. /sup 0/. gamma gamma. in a model of mesons with quark loops
Journal Article
·
· Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:5510808
The decays of mesons which proceed through quark loops are described by means of a model based on consideration of four-quark interactions. The decays rho..-->..eta..gamma.., ..omega -->..eta..gamma.., eta'..-->..rho..gamma.., eta'..--> omega gamma.., delta..--> gamma gamma.., delta..-->..eta..pi.., and eta..--> pi../sup 0/..gamma gamma.. are calculated. It is assumed that the role of the fictitious sigma particles in the chiral sigma model is played by the physical resonances epsilon-c and delta. The prediction for the width of the decay eta..--> pi../sup 0/..gamma gamma.. is in good agreement with recent experimental data.
- Research Organization:
- Joint Institute for Nuclear Research
- OSTI ID:
- 5510808
- Journal Information:
- Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 37:5; ISSN SJNCA
- Country of Publication:
- United States
- Language:
- English
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Anomalies of quark diagrams in the decay eta. --> pi. /sup 0/. gamma gamma. and the quark structure of the scalar meson delta(980)
Journal Article
·
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· Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
·
OSTI ID:6237138
Related Subjects
645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
COMPOSITE MODELS
DELTA-966 RESONANCES
ELEMENTARY PARTICLES
ETA MESONS
ETA-700 RESONANCES
FERMIONS
HADRONS
HYPERONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
PARTICLE MODELS
PARTICLE PROPERTIES
PARTICLE WIDTHS
PHOTONS
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
QUARK MODEL
RADIATIVE DECAY
RESONANCE PARTICLES
SIGMA PARTICLES
STRANGE PARTICLES
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
COMPOSITE MODELS
DELTA-966 RESONANCES
ELEMENTARY PARTICLES
ETA MESONS
ETA-700 RESONANCES
FERMIONS
HADRONS
HYPERONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
PARTICLE MODELS
PARTICLE PROPERTIES
PARTICLE WIDTHS
PHOTONS
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
QUARK MODEL
RADIATIVE DECAY
RESONANCE PARTICLES
SIGMA PARTICLES
STRANGE PARTICLES