Published October 19, 1987
| Version v1
Journal article
Baryon pair production in J/ψ decays
Creators
- Pallin, D.1
- Ajaltouni, Z.1
- Falvard, A.1
- Henrard, P.1
- Jousset, J.1
- Michel, B.1
- Montret, J.C.1
- Antonelli, A.2
- Baldini, R.2
- Calcaterra, A.2
- Capon, G.2
- Augustin, J.E.3
- Cosme, G.3
- Couchot, F.3
- Dudelzak, B.3
- Fulda, F.3
- Grelaud, B.3
- Grosdidier, G.3
- Jean-Marie, B.3
- Jullian, S.3
- Lalanne, D.3
- Lepeltier, V.3
- Mane, F.3
- Paulot, C.3
- Riskalla, R.3
- Roy, P.3
- Rumpf, F.3
- Szklarz, G.3
- Bisello, D.4, 5
- Busetto, G.4, 5
- Limentani, S.4, 5
- Nigro, M.4, 5
- Pescara, L.4, 5
- Posocco, M.4, 5
- Sartori, P.4, 5
- Stanco, L.4, 5
- DM2 Collaboration
- 1. Clermont-Ferrand-2 Univ., 63 - Aubiere (France). Lab. de Physique Corpusculaire
- 2. Istituto Nazionale di Fisica Nucleare, Frascati (Italy). Lab. Nazionale di Frascati
- 3. Paris-11 Univ., 91 - Orsay (France). Lab. de l'Accelerateur Lineaire
- 4. Istituto Nazionale di Fisica Nucleare, Padua (Italy)
- 5. Padua Univ. (Italy). Dipt. di Fisica
Description
The decays of 8.6 million J/ψ produced at DCI in the DM2 detector are analyzed to measure baryon pair production. Angular distributions for J/ψ → panti p, Λ anti Λ, Σ0 anti Σ0 are in good agreement with first order QCD predictions. New measurements are given for the branching ratios of these decays. (orig.)
Additional details
Publishing Information
- Journal Title
- Nucl. Phys. B, Part. Phys.
- Journal Volume
- 292
- Journal Issue
- 4
- Series
- Nucl. Phys. B, Part. Phys.
- Journal Page Range
- 653-669
- ISSN
- 0550-3213
- CODEN
- NUPBB
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 19000759
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANGULAR DISTRIBUTION; ANNIHILATION; ANTILAMBDA PARTICLES; ANTIPROTONS; ANTISIGMA PARTICLES; BRANCHING RATIO; EFFECTIVE MASS; ELECTRON-POSITRON INTERACTIONS; ENERGY SPECTRA; EXPERIMENTAL DATA; GEV RANGE 01-10; HADRONIC PARTICLE DECAY; INCLUSIVE INTERACTIONS; LAMBDA PARTICLES; MASS SPECTRA; PAIR PRODUCTION; PHOTONS; PIONS MINUS; PIONS PLUS; PROTONS; PSI-3105 RESONANCES; SIGMA NEUTRAL
- Descriptors DEC
- ANTIBARYONS; ANTIHYPERONS; ANTIMATTER; ANTIMESONS; ANTINUCLEI; ANTINUCLEONS; ANTIPARTICLES; BARYONS; BOSONS; CATIONS; CHARGED PARTICLES; DATA; DECAY; DISTRIBUTION; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; HYPERONS; INFORMATION; INTERACTIONS; IONS; LEPTON-LEPTON INTERACTIONS; MASS; MASSLESS PARTICLES; MATTER; MESON RESONANCES; MESONS; NUCLEI; NUCLEONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PIONS; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; PSI RESONANCES; RESONANCE PARTICLES; SIGMA PARTICLES; SPECTRA; STRANGE PARTICLES
Optional Information
- Collaborations
- DM2 Collaboration.