2 00 4 Study of J / ψ → ωK + K −
نویسندگان
چکیده
New data are presented on J/ψ → ωKK from a sample of 58M J/ψ events in the upgraded BES II detector at the BEPC. There is a conspicuous signal for f0(1710) → KK and a peak at higher mass which may be fitted with f2(2150) → KK̄. From a combined analysis with ωππ data, the branching ratio BR(f0(1710) → ππ)/BR(f0(1710) → KK̄) is < 0.11 at the 95% confidence level. PACS: 13.25.Gv, 14.40.Gx, 13.40.Hq
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تاریخ انتشار 2004