The branching fraction of the rare decay Λb0→Λ(1520)μ+μ- is measured for the first time, in the squared dimuon mass intervals q2, excluding the J/ψ and ψ(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 q2 interval, q2>15.0 GeV2/c4, where theoretical predictions have the smallest model dependence, agrees with the predictions. © 2023 CERN.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Measurement of the Λb0 → Λ (1520)μ+μ- Differential Branching Fraction. PHYSICAL REVIEW LETTERS, 131(15) [10.1103/PhysRevLett.131.151801].

Measurement of the Λb0 → Λ (1520)μ+μ- Differential Branching Fraction

Archilli, F.;Santovetti, E.;
2023-10-13

Abstract

The branching fraction of the rare decay Λb0→Λ(1520)μ+μ- is measured for the first time, in the squared dimuon mass intervals q2, excluding the J/ψ and ψ(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 q2 interval, q2>15.0 GeV2/c4, where theoretical predictions have the smallest model dependence, agrees with the predictions. © 2023 CERN.
13-ott-2023
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01
English
Con Impact Factor ISI
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85175272329&doi=10.1103/PhysRevLett.131.151801&partnerID=40&md5=feb1e8d5648ecf20f66bec81f572274c
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Measurement of the Λb0 → Λ (1520)μ+μ- Differential Branching Fraction. PHYSICAL REVIEW LETTERS, 131(15) [10.1103/PhysRevLett.131.151801].
Aaij, R; Abdelmotteleb, Asw; Abellan Beteta, C; Abudinén, F; Ackernley, T; Adeva, B; Adinolfi, M; Adlarson, P; Afsharnia, H; Agapopoulou, C; Aidala, ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/349143
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