### 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 R_{K/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.[Figure not available: see fulltext.]

Original language | English (US) |
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Article number | 153 |

Journal | Journal of High Energy Physics |

Volume | 2016 |

Issue number | 9 |

DOIs | |

State | Published - Sep 1 2016 |

### Keywords

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

### ASJC Scopus subject areas

- Nuclear and High Energy Physics

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## Cite this

The Lhcb Collaboration (2016). Measurement of the ratio of branching fractions ℬ(Bc+→J/

^{ψK+})/ℬ(Bc+→J/^{ψπ+}).*Journal of High Energy Physics*,*2016*(9), [153]. https://doi.org/10.1007/JHEP09(2016)153