Search for K_S K_S in J/psi and psi(2S) decays

Details Search for K_S K_S in J/psi and psi(2S) decays Search for K_S K_S in J/psi and psi(2S) decays

2003-12-25

arxiv.org/abs/hep-ex/0312059v1

Phys.Lett.B589:7-13,2004

Physics

High Energy Physics

High Energy Physics - Experiment

6 pages, 4 figures, submitted to Phys. Lett. B

Scientific paper

10.1016/j.physletb.2004.03.047

The CP violating processes J/psi-->K_S K_S and psi(2S)-->K_S K_S are searched for using samples of 58 million J/psi and 14 million psi(2S) events collected with the Beijing Spectrometer at the Beijing Electron Positron Collider. No signal is observed, and upper limits on the decay branching ratios are determined to be BR(J/psi-->K_S K_S) < 1.0x10^{-6} and BR(psi(2S)-->K_S K_S) < 4.6x10^{-6} at the 95% confidence level.

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