Branching-fraction measurements of {psi}(2S) decay to baryon-antibaryon final states

Journal Article · Thu Sep 01 04:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.051108· OSTI ID:20711400

Pedlar, T K ^[1]; Cronin-Hennessy, D; Gao, K Y; Gong, D T; Hietala, J; Kubota, Y; Klein, T; Lang, B W; Li, S Z; Poling, R; Scott, A W; Smith, A ^[2]; Dobbs, S; Metreveli, Z; Seth, K K; Tomaradze, A; Zweber, P ^[3]; Ernst, J; Mahmood, A H ^[4]; Severini, H ^[5]

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1. Luther College, Decorah, Iowa 52101 (United States)
2. University of Minnesota, Minneapolis, Minnesota 55455 (United States)
3. Northwestern University, Evanston, Illinois 60208 (United States)
4. State University of New York at Albany, Albany, New York 12222 (United States)
5. University of Oklahoma, Norman, Oklahoma 73019 (United States); and others

Using 3.08x10{sup 6} {psi}(2S) decays observed in e{sup +}e{sup -} collisions by the CLEO detector, we present the results of a study of the {psi}(2S) decaying into baryon-antibaryon final states. We report the most precise measurements of the following eight modes: pp, {lambda}{lambda}, {sigma}{sup +}{sigma}{sup +} (first observation), {sigma}{sup 0}{sigma}{sup 0}, {xi}{sup -}{xi}{sup -}, and {xi}{sup 0}{xi}{sup 0} (first observation), and place upper limits for the modes {xi}(1530){sup 0}{xi}(1530){sup 0} and {omega}{sup -}{omega}{sup -}.

• OSTI ID: 20711400
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 72; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIBARYONS
BRANCHING RATIO
CESR STORAGE RING
ELECTRON-POSITRON INTERACTIONS
HADRONIC PARTICLE DECAY
MULTIPARTICLE SPECTROMETERS
OMEGA MINUS PARTICLES
PARTICLE IDENTIFICATION
PROTONS
PSI-3770 MESONS
SIGMA MINUS PARTICLES
SIGMA PLUS PARTICLES
XI MINUS PARTICLES
XI-1530 BARYONS