Measurement of branching fraction ratios for B + → D *+ D K +, B + → D *− D + K +, and B 0 → D *− D 0 K + decays

LHCb Collaboration

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A measurement of four branching-fraction ratios for three-body decays of B mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 pp collision data are used, recorded by the LHCb experiment at centre-of-mass energies 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb−1. The measured branching-fraction ratios are 





where the first of the uncertainties is statistical, the second systematic, and the third is due to the uncertainties on the D-meson branching fractions. These are the most accurate measurements of these ratios to date. 

Original languageEnglish
Article number139
JournalJournal of High Energy Physics
Issue number12
Publication statusPublished - 21 Dec 2020


  • B physics
  • Branching fraction
  • Flavor physics
  • Hadron-Hadron scattering (experiments)

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


Dive into the research topics of 'Measurement of branching fraction ratios for B <sup>+</sup> → D <sup>*+</sup> D <sup>−</sup> K <sup>+</sup>, B <sup>+</sup> → D <sup>*−</sup> D <sup>+</sup> K <sup>+</sup>, and B <sup>0</sup> → D <sup>*−</sup> D <sup>0</sup> K <sup>+</sup> decays'. Together they form a unique fingerprint.

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