Measurement of the Λ_{b}^{0}→Λ(1520)μ^{+}μ^{-} Differential Branching Fraction.
Journal
Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141
Informations de publication
Date de publication:
13 Oct 2023
13 Oct 2023
Historique:
received:
16
02
2023
accepted:
11
08
2023
medline:
29
10
2023
pubmed:
29
10
2023
entrez:
28
10
2023
Statut:
ppublish
Résumé
The branching fraction of the rare decay Λ_{b}^{0}→Λ(1520)μ^{+}μ^{-} is measured for the first time, in the squared dimuon mass intervals q^{2}, 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 q^{2} interval, q^{2}>15.0 GeV^{2}/c^{4}, where theoretical predictions have the smallest model dependence, agrees with the predictions.
Identifiants
pubmed: 37897753
doi: 10.1103/PhysRevLett.131.151801
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM