Observation of the decay B < sup > + < /sup > → ψ(2S)ϕ(1020)K < sup > + < /sup > in pp collisions at s=8TeV
Observation of the decay B < sup > + < /sup > → ψ(2S)ϕ(1020)K < sup > + < /sup > in pp collisions at s=8TeV
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Date
2017-01-10
Authors
Khachatryan, V.
Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Asilar, E.
Bergauer, T.
Brandstetter, J.
Brondolin, E.
Dragicevic, M.
Erö, J.
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Journal ISSN
Volume Title
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Abstract
The decay B+→ψ(2S)ϕ(1020)K+ is observed for the first time using data collected from pp collisions at s=8TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 19.6fb−1. The branching fraction of this decay is measured, using the mode B+→ψ(2S)K+ as normalization, to be (4.0±0.4(stat)±0.6(syst)±0.2(B))×10−6, where the third uncertainty is from the measured branching fraction of the normalization channel.
Description
Keywords
B physics,
CMS,
Physics,
Rare B decays
Citation
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. v.764