2019
DOI: 10.1007/jhep03(2019)126
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Measurement of the ratio of branching fractions of the decays Λ0 b → ψ(2S)Λ and Λ0 b → J/ψΛ

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(Λ 0 b → ψ(2S)Λ)/B(Λ 0 b → 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.

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Cited by 5 publications
(2 citation statements)
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“…The interaction of the generated particles with the detector, and its response, are implemented using the Geant4 toolkit [29] as described in Ref. [30]. In the signal simulation, the decay probability of is taken to be uniform across the available phase space.…”
Section: Detector and Simulationmentioning
confidence: 99%
See 1 more Smart Citation
“…The interaction of the generated particles with the detector, and its response, are implemented using the Geant4 toolkit [29] as described in Ref. [30]. In the signal simulation, the decay probability of is taken to be uniform across the available phase space.…”
Section: Detector and Simulationmentioning
confidence: 99%
“…An additional neutral particle, which must be identified as a photon and have greater than 10 , is then combined with the candidate to form a candidate. The W candidate must have invariant mass between 30…”
Section: Reconstruction and Selectionmentioning
confidence: 99%