Lepton-Flavor-Dependent Angular Analysis of BâK
Phys Rev Lett
; 118(11): 111801, 2017 Mar 17.
Article
en En
| MEDLINE
| ID: mdl-28368653
ABSTRACT
We present a measurement of angular observables and a test of lepton flavor universality in the BâK^{*}â^{+}â^{-} decay, where â is either e or µ. The analysis is performed on a data sample corresponding to an integrated luminosity of 711 fb^{-1} containing 772×10^{6} BB[over ¯] pairs, collected at the Ï(4S) resonance with the Belle detector at the asymmetric-energy e^{+}e^{-} collider KEKB. The result is consistent with standard model (SM) expectations, where the largest discrepancy from a SM prediction is observed in the muon modes with a local significance of 2.6σ.
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1
Colección:
01-internacional
Banco de datos:
MEDLINE
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Phys Rev Lett
Año:
2017
Tipo del documento:
Article