New results on radiative J/psi decays from mark III

Journal Article · Mon Oct 15 04:00:00 EDT 1984 · AIP Conf. Proc.; (United States)

DOI:https://doi.org/10.1063/1.34793· OSTI ID:6388345

Richman, J D

Results from the analysis of five radiative J/psi decays are presented. In J/psi..--> gamma..KK-bar, the f'(1515), theta(1720), and a new state, the xi(2200), are observed in the KK-bar mass spectrum. In the double radiative decay J/psi..--> gamma..X;X..--> gamma..p/sup 0/, evidence is presented for structure near 1.4 GeV. Finally, in the three SU(3) related decays J/psi..--> gamma..rho..-->.. rho/sup 0/, J/psi..--> gamma..rho/sup +/rho/sup -/, and J/psi..--> gamma omega omega.., structure is observed near 1.7 GeV. Analysis of the decay angular distributions in these three modes indicates that even spin and odd parity predominate in this mass region.

• Research Organization: California Institute of Technology, Pasadena, California 91125
• DOE Contract Number: AC03-81ER40050
• OSTI ID: 6388345
• Journal Information: AIP Conf. Proc.; (United States), Journal Name: AIP Conf. Proc.; (United States) Vol. 121:1; ISSN APCPC
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BOSONS
BRANCHING RATIO
COLOR MODEL
COMPOSITE MODELS
DALITZ PLOT
DIAGRAMS
DISTRIBUTION
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FIELD THEORIES
GLUEBALLS
HADRONS
INTERACTIONS
KAONS
LEPTON-LEPTON INTERACTIONS
LIE GROUPS
MASS SPECTRA
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
PARITY
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PIONS
PROPAGATOR
PSEUDOSCALAR MESONS
PSI RESONANCES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
RADIATIVE DECAY
RESONANCE PARTICLES
SCATTERPLOTS
SPEAR
SPECTRA
SPIN
STORAGE RINGS
STRANGE PARTICLES
SU GROUPS
SU-3 GROUPS
SYMMETRY GROUPS
VECTOR MESONS