# Observation of the decay $B_c \rightarrow J/\psi K^+ K^- \pi^+$

Abstract : The decay $B_c\rightarrow J/\psi K^+ K^- \pi^+$ is observed for the first time, using proton-proton collisions collected with the LHCb detector corresponding to an integrated luminosity of 3fb$^{-1}$. A signal yield of $78\pm14$ decays is reported with a significance of 6.2 standard deviations. The ratio of the branching fraction of $\B_c \rightarrow J/\psi K^+ K^- \pi^+$ decays to that of $B_c \rightarrow J/\psi \pi^+$ decays is measured to be $0.53\pm 0.10\pm0.05$, where the first uncertainty is statistical and the second is systematic.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00857748
Contributor : Danielle Cristofol <>
Submitted on : Wednesday, September 4, 2013 - 8:48:08 AM
Last modification on : Wednesday, September 16, 2020 - 4:23:37 PM

### Citation

R. Aaij, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al.. Observation of the decay $B_c \rightarrow J/\psi K^+ K^- \pi^+$. Journal of High Energy Physics, Springer, 2013, 11, pp.094. ⟨10.1007/JHEP11(2013)094⟩. ⟨in2p3-00857748⟩

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