Threshold Resummation in B --> X_c l nu_l Decays

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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.
24 pages, no figures

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/193122

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0707.2010
 http://arxiv.org/abs/0707.2010
 Phys.Lett.B653:38-52,2007
 doi:10.1016/j.physletb.2007.07.041

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