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Higgless W unitarity from decoupling deconstruction

Evans, Nick and Membry, Phil (2004) Higgless W unitarity from decoupling deconstruction Pre-print, pp. 1-10.

Record type: Article


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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Published date: 25 June 2004
Additional Information: arXiv:hep-ph/0406285v2


Local EPrints ID: 57199
PURE UUID: 8cc77c15-8ea5-4dc4-8278-f9a9ebdcf543

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Date deposited: 13 Aug 2008
Last modified: 17 Jul 2017 14:29

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Author: Nick Evans
Author: Phil Membry

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