Branching Fraction Measurements of psi(2S) Decay to Baryon-Antibaryon Final States

Details Branching Fraction Measurements of psi(2S) Decay to Baryon-Antibaryon Final States Branching Fraction Measurements of psi(2S) Decay to Baryon-Antibaryon Final States

2005-05-17

arxiv.org/abs/hep-ex/0505057v2

Phys.Rev.D72:051108,2005

Physics

High Energy Physics

High Energy Physics - Experiment

8 pages postscript,also available through http://www.lns.cornell.edu/public/CLNS/2005/, submitted to PRL

Scientific paper

10.1103/PhysRevD.72.051108

Using 3.08 million psi(2S) decays observed in e^+e^- 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: proton-antiproton, lambda-antilambda, Xi^- antiXi^-, Xi^0-antiXi^0 (first observation), Sigma+-antiSigma^+ (first observation), and Sigma^0-antiSigma^0, and place upper limits for the modes, Xi^0*-antiXi^0* and Omega^- antiOmega^-.

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