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.]

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2019). Measurement of the ratio of branching fractions of the decays Λb0 → ψ(2S)Λ and Λb0 → J/ψΛ. JOURNAL OF HIGH ENERGY PHYSICS, 2019(3) [10.1007/JHEP03(2019)126].

Measurement of the ratio of branching fractions of the decays Λb0 → ψ(2S)Λ and Λb0 → J/ψΛ

Belloli N.;Borsato M.;Calvi M.;Carniti P.;Cassina L.;Fazzini D.;Gotti C.;Martinelli M.;Petruzzo M.;
2019

Abstract

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.]
Articolo in rivista - Articolo scientifico
B physics; Branching fraction; Flavor physics; Hadron-Hadron scattering (experiments)
English
2019
2019
3
126
open
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2019). Measurement of the ratio of branching fractions of the decays Λb0 → ψ(2S)Λ and Λb0 → J/ψΛ. JOURNAL OF HIGH ENERGY PHYSICS, 2019(3) [10.1007/JHEP03(2019)126].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/242900
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