Observation of the Bs0 → D D decay

LHCb Collaboration

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A search for the Bs0→ DD decay is performed using proton-proton collision data at centre-of-mass energies of 7, 8 and 13 TeV collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. The decay is observed with a high significance and its branching fraction relative to the B0→ DD decay is measured to be

ℬ(Bs0→D∗±D)/(B0→D∗±D) = 0.137±0.017±0.002±0.006,

where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the ratio of the Bs0 and B0 hadronisation fractions.

Original languageEnglish
Article number99
Number of pages19
JournalJournal of High Energy Physics
Issue number3
Publication statusPublished - 9 Mar 2021

Bibliographical note

Publisher Copyright:
© 2021, The Author(s).


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

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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