The Top Width - Theoretical update
High Energy Physics - Phenomenology
2014-11-17 v1
Abstract
A critical assessment of the available calculations of the top quark width is presented. QCD corrections, the finite mass of the quark and the effect of the width are included as well as the electroweak corrections. The relative importance of these corrections is demonstrated for the realistic range of top masses. For the QCD corrected decay rate we use the formulae from \cite{JK1} and include the electroweak correction taken from \cite{DS}. Our results differ from those available in the literature because all the later calculations ignored the effect of W width discussed earlier in \cite{JK1}~. This leads to an effect comparable in size to the electroweak correction.
Cite
@article{arxiv.hep-ph/9302295,
title = {The Top Width - Theoretical update},
author = {M. Jeżabek and J. H. Kühn},
journal= {arXiv preprint arXiv:hep-ph/9302295},
year = {2014}
}
Comments
6 pages, LaTex, Univ. of Karlsruhe preprint TTP 93-4