Quark--scalar-diquark mass effects in [ital J]/[psi] decays into baryon-antibaryon pairs

Journal Article · Sat May 01 00:00:00 EDT 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.47.3967· OSTI ID:6644671

Kada, E ^[1]; Parisi, J ^[2]

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1. Departement de Physique, Faculte des Sciences, Oujda (Morocco)
2. Laboratoire de Physique Corpusculaire, College de France, Paris (France)

The decay [ital J]/[psi][r arrow][ital B[bar B]] is computed in lowest order in perturbative QCD, modeling the baryon with a quark--scalar-diquark system where the two constituents are assumed to have, respectively, an effective mass of one-third and two-thirds of the baryon mass. Using a very simple nonrelativistic model, a satisfactory agreement with the data, regarding angular distributions of the baryons emitted, is obtained. Predictions are given for other heavy vector meson decays into baryon-antibaryon pairs.

• OSTI ID: 6644671
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 47:9; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHARMONIUM
QUANTUM CHROMODYNAMICS
J PSI-3097 MESONS
HADRONIC PARTICLE DECAY
BARYONS
COUPLING CONSTANTS
DATA ANALYSIS
LEVEL WIDTHS
MASS
PERTURBATION THEORY
QUARK MODEL
BOSONS
COMPOSITE MODELS
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRONS
MATHEMATICAL MODELS
MESONS
PARTICLE DECAY
PARTICLE MODELS
QUANTUM FIELD THEORY
QUARKONIUM
VECTOR MESONS
662350* - Decays of Mesons- (1992-)
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