The branching fraction of the rare decay Lambda0b -> Lambda(1520)mu+mu- is measured for the first time, in the squared dimuon mass intervals q^2, excluding the JPsi and Psi(2S) regions. The data sample analyzed was collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb-1. The result in the highest q^2 interval, q^2 > 15.0 GeV^2/c^4, where theoretical predictions have the smallest model dependence, agrees with the predictions.

Measurement of the Lambda0b -> Lambda(1520)mu+mu- Differential Branching Fraction

Bassi, G.
Membro del Collaboration Group
;
Kleijne, N.
Membro del Collaboration Group
;
Lusiani, A.
Membro del Collaboration Group
;
Morello, M.  J.
Membro del Collaboration Group
;
Pica, L.
Membro del Collaboration Group
;
Ribatti, R.
Membro del Collaboration Group
;
2023

Abstract

The branching fraction of the rare decay Lambda0b -> Lambda(1520)mu+mu- is measured for the first time, in the squared dimuon mass intervals q^2, excluding the JPsi and Psi(2S) regions. The data sample analyzed was collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb-1. The result in the highest q^2 interval, q^2 > 15.0 GeV^2/c^4, where theoretical predictions have the smallest model dependence, agrees with the predictions.
2023
Settore FIS/01 - Fisica Sperimentale
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
Branching fraction; Flavor changing neutral currents; Leptonic, semileptonic and radiative decays; Rare decays; Bottom baryons; Hadron colliders
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/149941
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