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arXiv · 0707.2010

Threshold Resummation in B --> X_c l nu_l Decays

Ugo Aglietti·Leonardo Di Giustino·Giancarlo Ferrera·Alessandro Renzaglia·Giulia Ricciardi·Luca Trentadue
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Abstract

We compute the QCD form factor resumming threshold logarithms in B --> X_c + l + nu_l decays to next-to-leading logarithmic approximation. We present an interpolation formula including soft as well as collinear effects softened by the non-vanishing charm mass.

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Ugo Aglietti, Leonardo Di Giustino, Giancarlo Ferrera, Alessandro Renzaglia, Giulia Ricciardi, Luca Trentadue. 2007-07-13. Threshold Resummation in B --> X_c l nu_l Decays. https://doi.org/10.1016/j.physletb.2007.07.041

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