Study of B+c decays to charmonia and three light hadrons

LHCb collaboration, R.H. O'Neil

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Using proton-proton collision data, corresponding to an integrated luminos-
ity of 9 fb−1 collected with the LHCb detector, seven decay modes of the B+c meson into a J/ψ or ψ(2S) meson and three charged hadrons, kaons or pions, are studied. The decays B+c → (ψ(2S) → J/ψ π+π−)π+, B+c → ψ(2S)π+π−π+, B+
c → J/ψ K+π−π+and B+c → J/ψ K+K−K+ are observed for the first time, and evidence for the B+c → ψ(2S)K+K−π+, 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 B+c 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.
Original languageEnglish
Article number65
Pages (from-to)1-27
Number of pages27
Journal Journal of High Energy Physics
Issue number1
Publication statusPublished - 13 Jan 2022

Keywords / Materials (for Non-textual outputs)

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


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