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arXiv · 1311.7381

Perturbative corrections to power suppressed effects in semileptonic B decays

Andrea Alberti·Paolo Gambino·Soumitra Nandi
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Abstract

We compute the $O(\alpha_s)$ corrections to the Wilson coefficient of the chromomagnetic operator in inclusive semileptonic B decays. The results are employed to evaluate the complete $O(\alpha_s \Lambda^2/m_b^2)$ correction to the semileptonic width and to the first moments of the lepton energy distribution.

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Andrea Alberti, Paolo Gambino, Soumitra Nandi. 2013-11-28. Perturbative corrections to power suppressed effects in semileptonic B decays. https://doi.org/10.1007/jhep01(2014)147

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