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NNLO QCD corrections to B -> X_s gamma

M. Misiak
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Abstract

Current status of the NNLO QCD corrections to B -> X_s gamma is reviewed. The calculations include three-loop matching conditions, four-loop anomalous dimensions as well as two- and three-loop on-shell amplitudes. Certain parts of the three-loop matrix elements are found by interpolation in the charm quark mass between the large-beta_0 approximation in the m_c=0 case and the complete result in the m_c >> m_b/2 case.

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M. Misiak. 2006-09-27. NNLO QCD corrections to B -> X_s gamma. https://arxiv.org/abs/hep-ph/0609289

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