Four-Loop Singlet Contribution to the $\rho$ Parameter
高能物理 - 唯象学
2009-11-11 v2
摘要
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.
引用
@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}
}
备注
9 pages, minor changes to match published version, references added