Four-Loop Singlet Contribution to the $\rho$ Parameter
High Energy Physics - Phenomenology
2009-11-11 v2
Abstract
We compute the four-loop contribution to the electroweak parameter induced by the singlet diagrams of the -boson self-energy. The numerical impact on the weak mixing angle and the -boson mass is small.
Cite
@article{arxiv.hep-ph/0504055,
title = {Four-Loop Singlet Contribution to the $\rho$ Parameter},
author = {Y. Schroder and M. Steinhauser},
journal= {arXiv preprint arXiv:hep-ph/0504055},
year = {2009}
}
Comments
9 pages, minor changes to match published version, references added