Abstract
We compute the O(αs) corrections to the Wilson coefficients of the dimension five operators in inclusive semileptonic B decays in the limit of a massless final quark. Our calculation agrees with reparametrization invariance and with previous results for the total width and improves the constraints on the shape functions that enter those decays.
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Capdevila, B., Gambino, P. & Nandi, S. Perturbative corrections to power suppressed effects in \( \overline{B} \) → Xuℓν. J. High Energ. Phys. 2021, 137 (2021). https://doi.org/10.1007/JHEP04(2021)137
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DOI: https://doi.org/10.1007/JHEP04(2021)137