Exclusive Multi-Body Hadronic Decays of the psi(2S)

Details Exclusive Multi-Body Hadronic Decays of the psi(2S) Exclusive Multi-Body Hadronic Decays of the psi(2S)

2004-08-17

arxiv.org/abs/hep-ex/0408084v1

Physics

High Energy Physics

High Energy Physics - Experiment

13 pages postscript,also available through http://www.lns.cornell.edu/public/CONF/2004/, Presented at ICHEP Aug 16-22,2004,

Scientific paper

Using data accumulated with the CLEO detector corresponding to an integrated luminosity of 5.46 1/pb on the peak of the psi(2S) and 20.46 1/pb at E_CM=3.67 GeV, we report preliminary branching fraction measurements for seven new decay modes of the psi(2S) (eta 3pi, eta' 3pi, 2(K+ K-), p pbar K+ K-, Lambda Lambdabar pi+ pi-, Lambda pbar K+, and Lambda pbar K+ pi+ pi-) and more precise measurements of nine previously measured modes (2(pi+pi-), 2(pi+pi-) pi0, omega pi+pi-, K+ K- pi+ pi-, phi pi+ pi-, omega K+ K-, phi K+ K-, p pbar pi+ pi-, and Lambda Lambdabar). We also include a study of omega p pbar and obtain an improved upper limit for phi p pbar. Results are compared, where possible, with the corresponding J/psi branching ratios to test the 12% rule.

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