${BR}(\bar{B}\to X_s\gamma)$: First Next-to-Next-to-Leading Order Results

Matthias Steinhauser

arxiv: hep-ph/0406240 · v1 · submitted 2004-06-22 · ✦ hep-ph

{BR}(bar{B}to X_sγ): First Next-to-Next-to-Leading Order Results

Matthias Steinhauser This is my paper

classification ✦ hep-ph

keywords correctionsfirstgammanext-to-next-to-leadingorderbranchingcompletioncontribution

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In this contribution the first next-to-next-to-leading order corrections to the branching ratio ${BR}(\bar{B}\to X_s\gamma)$ are discussed. This includes the completion of the matching part and the fermionic corrections to the most important operator matrix elements.

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{BR}(bar{B}to X_sγ): First Next-to-Next-to-Leading Order Results

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