Universality-Breaking Effects in Leptonic Z Decays
High Energy Physics - Phenomenology
2009-10-22 v1
Abstract
We analyze the possibility of universality violation in diagonal leptonic decays of the boson, in the context of interfamily "see-saw" models. In a minimal extension of the Standard Model with right-handed neutrino fields, we find that universality-breaking effects increase quadratically with the heavy Majorana neutrino mass and may be observed in the running experiments.
Keywords
Cite
@article{arxiv.hep-ph/9307295,
title = {Universality-Breaking Effects in Leptonic Z Decays},
author = {J. Bernabeu and J. Korner and A. Pilaftsis and K. Schilcher},
journal= {arXiv preprint arXiv:hep-ph/9307295},
year = {2009}
}
Comments
MZ-TH/93-04 #, LaTeX, 14 p. (2 Figs)