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Measurement of two-photon production of the [chi][sub [ital c]2]

Journal Article · · Physical Review, D (Particles Fields); (United States)
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The CLEO II detector is used to search for the production of [chi][sub [ital c]2] states in two-photon interactions. We use the signature [chi][sub [ital c]2][r arrow][gamma][ital J]/[psi][r arrow][gamma][ital l][sup +][ital l][sup [minus]] with [ital l]=[ital e],[mu]. Using 1.49 fb[sup [minus]1] of data taken with beam energies near 5.29 GeV, the two-photon width of the [chi][sub [ital c]2] is determined to be [Gamma]([chi][sub [ital c]2][r arrow][gamma][gamma])=1.08[plus minus]0.30(stat)[plus minus]0.26(syst) keV, in agreement with predictions from perturbative QCD.
OSTI ID:
7007030
Journal Information:
Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:7; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English

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Related Subjects

662310 -- Weak & Electromagnetic Interactions of Leptons-- (1992-)
662350 -- Decays of Mesons-- (1992-)
662390 -- Electromagnetic Processes & Properties-- (1992-)
662420* -- Properties of Mesons & Meson Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
BOSONS
CHARMONIUM
CHI2-3555 MESONS
DECAY
DETECTION
DIMENSIONS
ELECTROMAGNETIC INTERACTIONS
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRONS
INTERACTIONS
J PSI-3097 MESONS
LEPTONS
MESONS
MUONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PERTURBATION THEORY
PHOTON-PHOTON INTERACTIONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKONIUM
RADIATIVE DECAY
TENSOR MESONS
VECTOR MESONS
WIDTH