TTP15-008 The (Q_7,Q_{1,2}) contribution to $\bar B\to X_s\gamma$ at O(alpha_s^2)
TTP15-008 The (Q_7,Q_{1,2}) contribution to $\bar B\to X_s\gamma$ at O(alpha_s
2)
Michak Czakon, Paul Fiedler, Tobias Huber, Mikolaj Misiak, Thomas Schutzmeier, Matthias Steinhauser
JHEP 1504 168 2015
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arXiv