Next-to-next-to-leading order calculations for heavy-to-light decays
High Energy Physics - Phenomenology
2014-11-18 v2
Abstract
We present technical aspects of next-to-next-to-leading order calculations for heavy-to-light decays such as top quark decay, semileptonic b quark decay into a u quark, muon decay, and radiative decays like b -> s gamma. Algebraic reduction of integrals to a set of master integrals is described, methods of determining the master integrals are presented, and a complete list of master integrals is given. As a sample application, the top quark decay width is calculated to O(alpha_s^2) accuracy.
Keywords
Cite
@article{arxiv.hep-ph/0503039,
title = {Next-to-next-to-leading order calculations for heavy-to-light decays},
author = {I. Blokland and A. Czarnecki and M. Slusarczyk and F. Tkachov},
journal= {arXiv preprint arXiv:hep-ph/0503039},
year = {2014}
}
Comments
12 pages, corrected typos in the appendix