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arXiv · hep-ex/0011032

Recent Results from BES

Xiaoyan SHEN·representing BES collaboration
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Abstract

We report partial wave analysis results for $J/ψ\to γK^+ K^-$ based on $7.8 \times 10^6$ BESI $J/ψ$ events, and find $0^{++}$ to be dominant in the $f_J(1710)$ mass region. Some very preliminary results are presented from the $2.2 \times 10^7$ $J/ψ$ events newly collected at the upgraded BES(BESII). Using the world largest $ψ(2S)$ data sample, BES measures branching ratios of $ψ(2S)$ 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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Xiaoyan SHEN, representing BES collaboration. 2000-11-10. Recent Results from BES. https://doi.org/10.1016/s0920-5632(00)01088-4

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