Higgsless W Unitarity from Decoupling Deconstruction

Nick Evans; Phil Membry

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arXiv · hep-ph/0406285

Higgsless W Unitarity from Decoupling Deconstruction

Nick Evans·Phil Membry

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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

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Nick Evans, Phil Membry. 2004-08-11. Higgsless W Unitarity from Decoupling Deconstruction. https://arxiv.org/abs/hep-ph/0406285

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