Measurement of the ratio of branching fractions ℬ(Bc+→J/ψK+)/ℬ(Bc+→J/ψπ+)

The LHCb Collaboration

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Abstract

The ratio of branching fractions RK/π≡ℬ(Bc+→J/ψK+)/ℬ(Bc+→J/ψπ+) is measured with pp collision data collected by the LHCb experiment at centre-of-mass energies of 7 TeV and 8 TeV, corresponding to an integrated luminosity of 3 fb−1. It is found to be RK/π = 0.079 ± 0.007 ± 0.003, where the first uncertainty is statistical and the second is systematic. This measurement is consistent with the previous LHCb result, while the uncertainties are significantly reduced.
Original languageEnglish
Article number153
Number of pages15
JournalJournal of High Energy Physics
Volume2016
Issue number9
DOIs
Publication statusPublished - 2016
Externally publishedYes

Keywords

  • Branching fraction
  • Hadron-Hadron scattering (experiments)
  • QCD

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