Recent Results from BES

Details Recent Results from BES Recent Results from BES

2000-11-10

arxiv.org/abs/hep-ex/0011032v1

Nucl.Phys.Proc.Suppl. 93 (2001) 151-156

Physics

High Energy Physics

High Energy Physics - Experiment

11 pages, 11 figures, proceeding paper for IV International Conference on Hyperons, Charm and Beauty Hadrons, June of 2000, Va

Scientific paper

10.1016/S0920-5632(00)01088-4

We report partial wave analysis results for $J/\psi \to \gamma K^+ K^-$ based on $7.8 \times 10^6$ BESI $J/\psi$ events, and find $0^{++}$ to be dominant in the $f_J(1710)$ mass region. Some very preliminary results are presented from the $2.2 \times 10^7$ $J/\psi$ events newly collected at the upgraded BES(BESII). Using the world largest $\psi(2S)$ data sample, BES measures branching ratios of $\psi(2S)$ radiative and hadronic decays. The preliminary R values measured by BESII in the 2-5 GeV energy region are also presented.

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