Electroweak Corrections to the Top Quark Decay
High Energy Physics - Phenomenology
2009-10-31 v2
Abstract
We have calculated the one-loop electroweak corrections to the decay t-> bW+, including the counterterm for the CKM matrix elements V(tb). Previous calculations used an incorrect delta V(tb) that led to a gauge dependent amplitude. However, since the contribution stemming from delta V(tb) is small, those calculations only underestimate the width by roughly one part in 10^5.
Keywords
Cite
@article{arxiv.hep-ph/0011324,
title = {Electroweak Corrections to the Top Quark Decay},
author = {S. M. Oliveira and L. Bruecher and R. Santos and A. Barroso},
journal= {arXiv preprint arXiv:hep-ph/0011324},
year = {2009}
}
Comments
7 pages, 2 figures