Higgsless W Unitarity from Decoupling Deconstruction
Abstract
Recently there has been interest in electroweak models on a five dimensional interval that break the symmetry without a higgs boson. By warping the metric of the interval it may be possible to avoid experimental bounds on extra W bosons and delta rho. Five dimensional models necessarily require an explicit UV cut-off to remain perturbative, such as that provided by deconstruction. We study a simple deconstruction of this scenario with a chain of SU(2)^N+1 x U(1)_Y groups linked by bi-fundamental higgs. There are two interesting decoupling limits of this model, when the higgs vevs are taken large and when the SU(2) couplings grow, which might provide a perturbative realization. In fact it is very challenging to satisfy all the experimental bounds and the most compatible scenario has both a higgs and a relatively strongly coupled new W both close to 2 TeV
Cite
@article{arxiv.hep-ph/0406285,
title = {Higgsless W Unitarity from Decoupling Deconstruction},
author = {Nick Evans and Phil Membry},
journal= {arXiv preprint arXiv:hep-ph/0406285},
year = {2007}
}
Comments
10 pages, 6 figures, additional discussion