Alfonso Albero, AlejandroCalvo Gómez, MíriamCamboni, AlessandroCoquereau, SamuelGarrido Beltrán, LluísGascón Fora, DavidGironella Gironell, PereGraciani Díaz, RicardoGraugés Pous, EugeniVilasis-Cardona, XavierLHCb CollaborationMarin Benito, Carla2020-05-252020-05-252019-02-201126-6708https://hdl.handle.net/2445/162292Using 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 fractions B(Λ0b→ψ(2S)Λ)/B(Λ0b→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.15 p.application/pdfengcc-by (c) LHCb Collaborationº et al., 2019http://creativecommons.org/licenses/by/3.0/esHadronsFísica de partículesExperimentsHadronsParticle physicsExperimentsinfo:eu-repo/semantics/article6963482020-05-25info:eu-repo/semantics/openAccess