Two-loop QCD corrections to semileptonic b-quark decays near maximum recoil
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
Two-gluon radiative corrections to the decay width have been computed analytically as an expansion in terms of \frac{m_c}{m_b} << 1 in the kinematical limit of zero lepton invariant mass. The obtained results match smoothly with a previously known expansion around (1 - \frac{m_c}{m_b} << 1. Together they describe the process for all mass ratios \frac{m_c}{m_b}.
Cite
@article{arxiv.hep-ph/0604233,
title = {Two-loop QCD corrections to semileptonic b-quark decays near maximum recoil},
author = {A. Pak and I. Blokland and A. Czarnecki},
journal= {arXiv preprint arXiv:hep-ph/0604233},
year = {2008}
}
Comments
9 pages, 4 figures, submitted to Phys. Rev. D