The decay Bc+ → J/ψ K+ 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/ψ K+ K− π+ decays to that of Bc+ → J/ψ π+ decays is measured to be 0.53 ± 0.10 ± 0.05, where the first uncertainty is statistical and the second is systematic.

R. Aaij, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, et al. (2013). Observation of the Decay Bc+ → J/ψ K+ K− π+. JOURNAL OF HIGH ENERGY PHYSICS, 2013(11), 0-15 [10.1007/JHEP11(2013)094].

Observation of the Decay Bc+ → J/ψ K+ K− π+

CARBONE, ANGELO;GALLI, DOMENICO;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2013

Abstract

The decay Bc+ → J/ψ K+ 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/ψ K+ K− π+ decays to that of Bc+ → J/ψ π+ decays is measured to be 0.53 ± 0.10 ± 0.05, where the first uncertainty is statistical and the second is systematic.
2013
R. Aaij, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, et al. (2013). Observation of the Decay Bc+ → J/ψ K+ K− π+. JOURNAL OF HIGH ENERGY PHYSICS, 2013(11), 0-15 [10.1007/JHEP11(2013)094].
R. Aaij; B. Adeva; M. Adinolfi; C. Adrover; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/199731
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