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Photonic penguins at two loops and $m_{t}$-dependence of $BR[B \to X_{s} l^{+} l^{-}]$
We calculate two-loop matching conditions for all the operators that are relevant to B -> X_s l^+ l^- decay in the Standard Model. In effect, we are able to remove the +_16% uncertainty in the decay spectrum, which was mainly due to the renormalization-scale dependence of the top-quark mass. We f...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
1999
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0550-3213(00)00007-9 http://cds.cern.ch/record/402379 |