Estimate of B(B(over) -->Xgamma) at O(alpha(s)2).

Estimate of B(B(over) -->Xgamma) at O(alpha(s)2).

Combining our results for various O(alpha[s]) corrections to the weak radiative B-meson decay, we are able to present the first estimate of the branching ratio at the next-to-next-to-leading order in QCD. We find B(B[over ]-->X[s]gamma)=(3.15+/-0.23) x 10(-4) for Egamma>1.6 GeV in the...

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Bibliographic Details
Main Authors: Misiak, M, Asatrian, H, Bieri, K, Czakon, M, Czarnecki, A, Ewerth, T, Ferroglia, A, Gambino, P, Gorbahn, M, Greub, C, Haisch, U, Hovhannisyan, A, Hurth, T, Mitov, A, Poghosyan, V, Slusarczyk, M, Steinhauser, M
Format: Journal article
Language:English
Published: 2007

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