Study of Bc+ decays to charmonia and three light hadrons

The LHCb Collaboration

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Using proton-proton collision data, corresponding to an integrated luminosity of 9 fb−1 collected with the LHCb detector, seven decay modes of the Bc+ meson into a J/ψ or ψ(2S) meson and three charged hadrons, kaons or pions, are studied. The decays Bc+ → (ψ(2S) → J/ψπ+π+, Bc+ → ψ(2S)π+ππ+, Bc+ → J/ψK+ππ+ and Bc+ → J/ψK+KK+ are observed for the first time, and evidence for the Bc+ → ψ(2S)K+Kπ+, decay is found, where J/ψ and ψ(2S) mesons are reconstructed in their dimuon decay modes. The ratios of branching fractions between the different Bc+ decays are reported as well as the fractions of the decays proceeding via intermediate resonances. The results largely support the factorisation approach used for a theoretical description of the studied decays. [Figure not available: see fulltext.]

Original languageEnglish
Article number65
JournalJournal of High Energy Physics
Volume2022
Issue number1
DOIs
Publication statusPublished - 13 Jan 2022

Bibliographical note

Publisher Copyright:
© 2022, The Author(s).

Keywords

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

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