Vector-meson radiative decays and SU(3)

Journal Article · Wed Dec 01 04:00:00 EST 1976 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.14.3021· OSTI ID:7323421

Thews, R L

Recently measured radiative decay rates for vector mesons, when compared with SU(3) and quark-model predictions, are known to disagree by factors of 2 or 3. Some simple SU(3) -breaking mechanisms in the framework of the vector-dominance model are considered, but none can fit all the data with ''reasonable'' parameters. It is concluded that either the new data from Primakoff-effect experiments have larger uncertainties than quoted or the usual ideas of SU(3) -invariant three-particle vertices with U-spin invariance for photon couplings are not valid. (AIP)

• Research Organization: Department of Physics, University of Arizona, Tucson, Arizona 85721
• OSTI ID: 7323421
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 14:11; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645303* -- High Energy Physics-- Particle Invariance Principles & Symmetries-- Applications to Strong Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
BOSONS
COMPOSITE MODELS
DECAY
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
HADRONS
INTERACTIONS
LIE GROUPS
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
PARTICLE MODELS
QUARK MODEL
RESONANCE PARTICLES
SU GROUPS
SU-3 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
VECTOR DOMINANCE MODEL
VECTOR MESONS