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Quark mass effects in $\overline{B} \to X_{s \gamma}$

The charm-loop contribution to B -> Xs gamma is found to be numerically dominant and very stable under logarithmic QCD corrections. The strong enhancement of the branching ratio by QCD logarithms is mainly due to the b-quark mass evolution in the top-quark sector. These observations allow us to a...

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Detalles Bibliográficos
Autores principales: Gambino, Paolo, Misiak, Mikolaj
Lenguaje:eng
Publicado: 2001
Materias:
Acceso en línea:https://dx.doi.org/10.1016/S0550-3213(01)00347-9
http://cds.cern.ch/record/493977