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Unitarity in Dirichlet Higgs Model

We show that a five dimensional Universal Extra Dimension model, compactified on a line segment, is consistently formulated even when the gauge symmetry is broken solely by non-zero Dirichlet boundary conditions on a bulk Higgs field, without any quartic interaction. We find that the longitudinal W+...

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Detalles Bibliográficos
Autores principales: Nishiwaki, Kenji, Oda, Kin-ya
Lenguaje:eng
Publicado: 2010
Materias:
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-011-1786-z
http://cds.cern.ch/record/1304206
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author Nishiwaki, Kenji
Oda, Kin-ya
author_facet Nishiwaki, Kenji
Oda, Kin-ya
author_sort Nishiwaki, Kenji
collection CERN
description We show that a five dimensional Universal Extra Dimension model, compactified on a line segment, is consistently formulated even when the gauge symmetry is broken solely by non-zero Dirichlet boundary conditions on a bulk Higgs field, without any quartic interaction. We find that the longitudinal W+W- elastic scattering amplitude, under the absence of the Higgs zero-mode, is unitarized by exchange of infinite towers of KK Higgs bosons. Resultant amplitude scales linearly with the scattering energy, exhibiting five dimensional nature. A tree-level partial-wave unitarity condition is satisfied up to 6.7 (5.7) TeV for the KK scale 430 (500) GeV, favored by the electroweak data within 90% CL.
id cern-1304206
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
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spelling cern-13042062019-09-30T06:29:59Zdoi:10.1140/epjc/s10052-011-1786-zhttp://cds.cern.ch/record/1304206engNishiwaki, KenjiOda, Kin-yaUnitarity in Dirichlet Higgs ModelParticle Physics - PhenomenologyWe show that a five dimensional Universal Extra Dimension model, compactified on a line segment, is consistently formulated even when the gauge symmetry is broken solely by non-zero Dirichlet boundary conditions on a bulk Higgs field, without any quartic interaction. We find that the longitudinal W+W- elastic scattering amplitude, under the absence of the Higgs zero-mode, is unitarized by exchange of infinite towers of KK Higgs bosons. Resultant amplitude scales linearly with the scattering energy, exhibiting five dimensional nature. A tree-level partial-wave unitarity condition is satisfied up to 6.7 (5.7) TeV for the KK scale 430 (500) GeV, favored by the electroweak data within 90% CL.We show that a five dimensional Universal Extra Dimension model, compactified on a line segment, is consistently formulated even when the gauge symmetry is broken solely by non-zero Dirichlet boundary conditions on a bulk Higgs field, without any quartic interaction. We find that the longitudinal W+W- elastic scattering amplitude, under the absence of the Higgs zero-mode, is unitarized by exchange of infinite towers of KK Higgs bosons. Resultant amplitude scales linearly with the scattering energy, exhibiting five dimensional nature. A tree-level partial-wave unitarity condition is satisfied up to 6.7 (5.7) TeV for the KK scale 430 (500) GeV, favored by the electroweak data within 90% CL.CERN-PH-TH-2010-248KOBE-TH-10-03OU-HET-684-2010arXiv:1011.0405CERN-PH-TH-2010-248KOBE-TH-10-03OU-HET-684-2010oai:cds.cern.ch:13042062010-11-02
spellingShingle Particle Physics - Phenomenology
Nishiwaki, Kenji
Oda, Kin-ya
Unitarity in Dirichlet Higgs Model
title Unitarity in Dirichlet Higgs Model
title_full Unitarity in Dirichlet Higgs Model
title_fullStr Unitarity in Dirichlet Higgs Model
title_full_unstemmed Unitarity in Dirichlet Higgs Model
title_short Unitarity in Dirichlet Higgs Model
title_sort unitarity in dirichlet higgs model
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1140/epjc/s10052-011-1786-z
http://cds.cern.ch/record/1304206
work_keys_str_mv AT nishiwakikenji unitarityindirichlethiggsmodel
AT odakinya unitarityindirichlethiggsmodel