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Title: Measurement of the ratio of branching fractions of the decays Λ b0 → ψ(2S)Λ and Λ b0 → J/ψΛ
Author: LHCb Collaboration
Alfonso Albero, Alejandro
Calvo Gómez, Míriam
Camboni, Alessandro
Coquereau, Samuel
Garrido Beltrán, Lluís
Gascón Fora, David
Gironella Gironell, Pere
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Marin Benito, Carla
Picatoste Olloqui, Eduardo
Vilasis-Cardona, Xavier
Keywords: Hadrons
Física de partícules
Particle physics
Issue Date: 22-Mar-2019
Publisher: Springer Verlag
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 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.
Note: Reproducció del document publicat a:
It is part of: Journal of High Energy Physics, 2019, p. 126
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ISSN: 1126-6708
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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