A new evaluation of the t->cH decay width in the standard model
High Energy Physics - Phenomenology
2010-04-06 v2
Abstract
We present a new calculation of the t->cH decay rate in the standard model. We find that the corresponding branching fraction is B(t->cH) \sim 10^{-13} - 10^{-14} for M_Z < m_H < 2 M_W, that is about 6 orders of magnitude less than previously evaluated, and usually quoted in the literature.
Cite
@article{arxiv.hep-ph/9805498,
title = {A new evaluation of the t->cH decay width in the standard model},
author = {B. Mele and S. Petrarca and A. Soddu},
journal= {arXiv preprint arXiv:hep-ph/9805498},
year = {2010}
}
Comments
12 pages, 5 figures, uses axodraw.sty. One reference added, to appear on Physics Letter B