Estimate of BR(B -> X_s gamma) at O(alpha_s^2)

Combining our results for various O(alpha_s^2) 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 BR(B -> X_s gamma) = (3.15 +_ 0.23) x 10^-4 for E_gamma > 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
Published:	2006

Estimate of BR(B -&gt; X_s gamma) at O(alpha_s^2)

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Estimate of BR(B -> X_s gamma) at O(alpha_s^2)