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Study of $J/ψ\to ωK^+K^-$

M. Ablikim
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Abstract

New data are presented on $J/ψ\to ωK^+K^-$ from a sample of 58M $J/ψ$ events in the upgraded BES II detector at the BEPC. There is a conspicuous signal for $f_0(1710) \to K^+K^-$ and a peak at higher mass which may be fitted with $f_2(2150) \to K\bar K$. From a combined analysis with $ωπ^+ π^-$ data, the branching ratio $BR(f_0(1710)\toππ)/BR(f_0(1710) \to K\bar K)$ is $< 0.11$ at the 95% confidence level.

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M. Ablikim. 2004-09-01. Study of $J/ψ\to ωK^+K^-$. https://doi.org/10.1016/j.physletb.2004.10.030

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