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Higgsless W unitarity from decoupling deconstruction

Higgsless W unitarity from decoupling deconstruction
Higgsless W unitarity from decoupling deconstruction
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 δρ. 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 .
1-10
Evans, Nick
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3
Membry, Phil
ece3ffc3-9c73-4eae-b8ca-515bb83ccdc4
Evans, Nick
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3
Membry, Phil
ece3ffc3-9c73-4eae-b8ca-515bb83ccdc4

Evans, Nick and Membry, Phil (2004) Higgsless W unitarity from decoupling deconstruction. Pre-print, (hep-ph/0406285v), 1-10.

Record type: Article

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 δρ. 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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More information

Published date: 25 June 2004
Additional Information: Report number: SHEP-04-19

Identifiers

Local EPrints ID: 57199
URI: https://eprints.soton.ac.uk/id/eprint/57199
PURE UUID: 8cc77c15-8ea5-4dc4-8278-f9a9ebdcf543

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Date deposited: 13 Aug 2008
Last modified: 07 Jan 2019 17:31

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