Recent BES results on charmonium decays

Details Recent BES results on charmonium decays Recent BES results on charmonium decays

2004-05-13

arxiv.org/abs/hep-ex/0405021v1

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 1 figure, talk at 39th Rencontres de Moriond, QCD session

Scientific paper

Recent results on charmonia decays at BES/BEPC are reported, including the observation of psi'-->K_S K_L, psi'--> Vector + Tensor for the measurement of the relative phase between the strong and electromagnetic decays of psi' and a test of the pQCD ``12% rule'' between psi' and J/psi decays; the study of psi'--> gamma gamma J/psi for the determination of psi'--> pi^0 J/psi, eta J/psi, gamma chi_c1 and gamma chi_c2 decay branching fractions; the test of the color-octet mechanism via chi_cJ--> p \bar{p} and chi_cJ--> \Lambda \bar{\Lambda}; and a search for the CP violating process psi' and J/psi--> K_S K_S.

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