The inclusive semileptonic branching ratio is often employed to normalize other inclusive B decays. Using recent determinations of the non-perturbative parameters of the Operator Product Expansion we compute the normalization factor for the branching ratio of B-> X_s gamma and find a 5% enhancement with respect to previous determinations.
Normalizing inclusive rare B decays
GAMBINO, Paolo;
2008-01-01
Abstract
The inclusive semileptonic branching ratio is often employed to normalize other inclusive B decays. Using recent determinations of the non-perturbative parameters of the Operator Product Expansion we compute the normalization factor for the branching ratio of B-> X_s gamma and find a 5% enhancement with respect to previous determinations.
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