Measurement of the ratio of branching fractions of the decays Λ b0 → ψ(2S)Λ and Λ b0 → J/ψΛ

Academic Article


  • © 2019, The Author(s). Using pp collisions corresponding to 3 fb −1 integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, the ratio of branching fractionsℬ(Λb0→ψ(2S)Λ)/ℬ(Λb0→J/ψΛ)=0.513±0.023(stat)±0.016(syst)±0.011(ℬ)is determined. The first uncertainty is statistical, the second is systematic and the third is due to the external branching fractions used.[Figure not available: see fulltext.]
  • Digital Object Identifier (doi)

    Author List

  • Aaij R; Adeva B; Adinolfi M; Ajaltouni Z; Akar S; Albrecht J; Alessio F; Alexander M; Alfonso Albero A; Ali S
  • Volume

  • 2019
  • Issue

  • 3