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Study of J/ψ→ωK+K−

Authors: Ablikim, M.; Bai, J.Z.; Ban, Y.; Bian, J.G.; Bugg, D.V.; Cai, X.; Chang, J.F.; +193 Authors

Study of J/ψ→ωK+K−

Abstract

AbstractNew data are presented on J/ψ→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 f0(1710)→K+K− and a peak at higher mass which may be fitted with f2(2150)→KK¯. From a combined analysis with ωπ+π− data, the branching ratio BR(f0(1710)→ππ)/BR(f0(1710)→KK¯) is <0.11 at the 95% confidence level.

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