The decay Bc + → J/ψK+K -π+ is observed for the first time, using proton-proton collisions collected with the LHCb detector corresponding to an integrated luminosity of 3 fb-1. A signal yield of 78 ± 14 decays is reported with a significance of 6.2 standard deviations. The ratio of the branching fraction of Bc + → J/ψK +K-π+ decays to that of Bc + → J/ψπ+ decays is measured to be 0:53 ± 0:10 ± 0:05, where the first uncertainty is statistical ; the second is systematic. Copyright CERN.

Observation of the decay Bc + → J/ψK +K-π+

PALANO, Antimo;PAPPAGALLO, MARCO IGNAZIO;
2013

Abstract

The decay Bc + → J/ψK+K -π+ is observed for the first time, using proton-proton collisions collected with the LHCb detector corresponding to an integrated luminosity of 3 fb-1. A signal yield of 78 ± 14 decays is reported with a significance of 6.2 standard deviations. The ratio of the branching fraction of Bc + → J/ψK +K-π+ decays to that of Bc + → J/ψπ+ decays is measured to be 0:53 ± 0:10 ± 0:05, where the first uncertainty is statistical ; the second is systematic. Copyright CERN.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11586/179709
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