A Stueckelberg Extension of the Standard Model
Abstract
An extension of the standard model of electro-weak interactions by an extra abelian gauge boson is given, in which the extra gauge boson and the hypercharge gauge boson both couple to an axionic scalar in a form that leads to a Stueckelberg mass term. The theory leads to a massive Z whose couplings to fermions are uniquely determined and suppressed by small mixing angles. Such a Z could have low mass and appear in collisions as a sharp resonance. The branching ratios into species, and the forward-backward asymmetry are found to have distinctive features. The model also predicts a new unit of electric charge , where is in general irrational, in the coupling of the photon with hidden matter that is neutral under .
Keywords
Cite
@article{arxiv.hep-ph/0402047,
title = {A Stueckelberg Extension of the Standard Model},
author = {Boris Kors and Pran Nath},
journal= {arXiv preprint arXiv:hep-ph/0402047},
year = {2009}
}
Comments
8 pages, no figures. To appear in Physics Letters B