We compute the O (αs) corrections to the Wilson coefficient of the kinetic operator in inclusive semileptonic B decays. Our analytic calculation agrees with reparameterization invariance and with previous numerical results and paves the way to the calculation of analogous corrections to other power-suppressed coefficients.
Kinetic operator effects in B -> Xc l nu at O(αs)
ALBERTI, ANDREA;GAMBINO, Paolo;NANDI, SOUMITRA
2013-01-01
Abstract
We compute the O (αs) corrections to the Wilson coefficient of the kinetic operator in inclusive semileptonic B decays. Our analytic calculation agrees with reparameterization invariance and with previous numerical results and paves the way to the calculation of analogous corrections to other power-suppressed coefficients.
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