Radiative decays of neutral pseudoscalar mesons and the vector form factor of K/sub l/4 decay in a chiral quark model
Journal Article
·
· Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:6191866
The radiative decays (..pi../sup 0/, eta, eta', K/sup 0//sub L/)..--> gamma gamma.. and (eta, eta', K/sup 0//sub L/)..--> pi../sup +/..pi../sup -/..gamma.. are described in a chiral model with quark loops. A comparative analysis was performed of the results of a description of radiative decays of the eta and eta' for two possible values of the singlet-octet mixing angle (theta = -11/sup 0/ and -18.2/sup 0/) and for different values of the renormalization constant of the axial quark current g/sub A/. The best agreement with experimental data is achieved with theta = -11/sup 0/ and g/sub A/ = 1. The vector form factor of K/sub l/4 decay has also been calculated.
- Research Organization:
- Joint Institute for Nuclear Research, Dubna
- OSTI ID:
- 6191866
- Journal Information:
- Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 32:2; ISSN SJNCA
- 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
CHIRAL SYMMETRY
CONFIGURATION MIXING
DECAY
ELECTROMAGNETIC PARTICLE DECAY
ELEMENTARY PARTICLES
ETA MESONS
ETA-958 RESONANCES
FORM FACTORS
HADRONS
INTERACTIONS
KAONS
KAONS NEUTRAL
KAONS NEUTRAL LONG-LIVED
MESON RESONANCES
MESONS
PARTICLE DECAY
PARTICLE PROPERTIES
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
RADIATIVE DECAY
RENORMALIZATION
RESONANCE PARTICLES
STRANGE PARTICLES
SYMMETRY
WEAK PARTICLE DECAY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHIRAL SYMMETRY
CONFIGURATION MIXING
DECAY
ELECTROMAGNETIC PARTICLE DECAY
ELEMENTARY PARTICLES
ETA MESONS
ETA-958 RESONANCES
FORM FACTORS
HADRONS
INTERACTIONS
KAONS
KAONS NEUTRAL
KAONS NEUTRAL LONG-LIVED
MESON RESONANCES
MESONS
PARTICLE DECAY
PARTICLE PROPERTIES
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
RADIATIVE DECAY
RENORMALIZATION
RESONANCE PARTICLES
STRANGE PARTICLES
SYMMETRY
WEAK PARTICLE DECAY