Observation of the decay B+ → ψ(2S)ϕ(1020)K+ in pp collisions at s=8TeV

The CMS collaboration

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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.

Original languageEnglish
Pages (from-to)66-86
Number of pages21
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publication statusPublished - 10 Jan 2017


  • B physics
  • CMS
  • Physics
  • Rare B decays


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