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arxiv: 1311.7381 · v1 · pith:WKR7VP6Cnew · submitted 2013-11-28 · ✦ hep-ph · hep-ex

Perturbative corrections to power suppressed effects in semileptonic B decays

Andrea Alberti , Paolo Gambino , Soumitra Nandi This is my paper
classification ✦ hep-ph hep-ex
keywords semileptonicalphacorrectionsdecayschromomagneticcoefficientcompletecompute
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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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