Radiative meson decay in the cloudy bag model

Journal Article · Wed Jan 01 04:00:00 EST 1986 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.33.141· OSTI ID:6326908

Singer, P; Miller, G A

We use the chiral SU(2)/sub L/ x SU(2)/sub R/ cloudy bag model to calculate magnetic dipole radiative transitions among pseudoscalar and vector mesons. A new picture for these decays emerges. Three different dynamical mechanisms, photon emission by quarks, photon emission from the pion cloud, and pion emission by mesonic bags accompanied by a transition from a vector bag to a photon, contribute singly or in combination to the 11 possible M1 transitions. The model accounts well for the observed rates. In particular, pion-cloud effects are necessary to explain the K( decays.

• Research Organization: Department of Physics, Technion-Israel Institute of Technology, Haifa, Israel
• OSTI ID: 6326908
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 33:1; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BAG MODEL
BOSONS
COMPOSITE MODELS
DIPOLES
ELEMENTARY PARTICLES
EMISSION
ENERGY-LEVEL TRANSITIONS
EXTENDED PARTICLE MODEL
FIELD THEORIES
HADRONS
LIE GROUPS
M1-TRANSITIONS
MAGNETIC DIPOLES
MASSLESS PARTICLES
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
MULTIPOLE TRANSITIONS
MULTIPOLES
PARTICLE MODELS
PHOTON EMISSION
PHOTONS
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
RADIATIVE DECAY
RESONANCE PARTICLES
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
VECTOR MESONS