Observation of the decay B c+ → J/ψK + K - π +
Journal
Journal of High Energy Physics
Journal Volume
2013
Journal Issue
11
Date Issued
2013
Author(s)
Aaij, R. et al. (LHCb Collaboration)
Abstract
A bstract The decay $ B_c^{+} $ → J/ψK + K − π + is observed for the first time, using protonproton 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 $ B_c^{+} $ → J/ψK + K − π + decays to that of $ B_c^{+} $ → J/ψπ + decays is measured to be 0 . 53 ± 0 . 10 ± 0 . 05, where the first uncertainty is statistical and the second is systematic.
Type
journal article