Bilepton and exotic quark mass limits in 331 models from Z -> b anti-b decay
High Energy Physics - Phenomenology
2009-11-11 v1
Abstract
We study the effect of new physics on the Z-decay into b anti-b pairs in the framework of 331 models. The decay Z -> b anti-b is computed at one loop level and, using previous results, we evaluate this branching fraction in the framework of 331 models. A wide range of the space parameter of the model is considered and possible deviations from the standard model predictions are explored. From precision measurements at the Z-pole we find the allowed region for MJ3, MX at 95 % CL.
Cite
@article{arxiv.hep-ph/0504078,
title = {Bilepton and exotic quark mass limits in 331 models from Z -> b anti-b decay},
author = {G. A. Gonzalez-Sprinberg and R. Martinez and O. Sampayo},
journal= {arXiv preprint arXiv:hep-ph/0504078},
year = {2009}
}
Comments
15 pages, 4 figures