Publication

Observation of e+e-→K+K-J/ψ via initial-state radiation at Belle

Olivier Schneider
2008
Journal Articles

Abstract

The process e+e-→K+K-J/ψ is observed for the first time via initial-state radiation. The cross section of e+e-→K+K-J/ψ for center-of-mass energies between threshold and 6.0 GeV is measured using 673fb-1 of data collected with the Belle detector on and off the Υ(4S) resonance. No significant signal for Y(4260)→K+K-J/ψ is observed, and we determine B(Y(4260)→K+K-J/ψ)Γ(Y(4260)→e+e-)

Official source

https://infoscience.epfl.ch/entities/publication/f2ced49c-e859-45e1-abc1-1645e2cde51c

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Observation of e+e-→K+K-J/ψ via initial-state radiation at Belle

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