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Theoretical Status of $B \to X_{s} \gamma$ Decays
We review the theoretical understanding of the branching ratio and photon-energy spectrum in B -> Xs gamma decays at next-to-leading order in QCD, including consistently the effects of Fermi motion. For the Standard Model, we obtain B(B -> Xs gamma)=(3.29 +- 0.33)*10^{-4} for the total branchi...
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| Lenguaje: | eng |
| Publicado: |
1998
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| Acceso en línea: | http://cds.cern.ch/record/365030 |