Search for the Lepton Flavor Violating Decays B
Phys Rev Lett
; 130(26): 261802, 2023 Jun 30.
Article
em En
| MEDLINE
| ID: mdl-37450824
ABSTRACT
We present a search for the lepton flavor violating decays B^{+}âK^{+}τ^{±}â^{∓}, with â=(e,µ), using the full data sample of 772×10^{6} BB[over ¯] pairs recorded by the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. We use events in which one B meson is fully reconstructed in a hadronic decay mode. We find no evidence for B^{±}âK^{±}τâ decays and set upper limits on their branching fractions at the 90% confidence level in the (1-3)×10^{-5} range. The obtained limits are the world's best results.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2023
Tipo de documento:
Article