Effects of SM Kaluza-Klein excitations on electroweak observables

The presence of an extra dimension of size R \approx TeV^{-1} introduces a tower of Kaluza-Klein gauge boson excitations that affects the standard model (SM) relations between electroweak observables. The mixing of the W and Z bosons with their excitations changes their masses and couplings to fermi...

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Detalles Bibliográficos
Autores principales: Masip, Manuel, Pomarol, Alex
Lenguaje:eng
Publicado: 1999
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.60.096005
http://cds.cern.ch/record/380378
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author Masip, Manuel
Pomarol, Alex
author_facet Masip, Manuel
Pomarol, Alex
author_sort Masip, Manuel
collection CERN
description The presence of an extra dimension of size R \approx TeV^{-1} introduces a tower of Kaluza-Klein gauge boson excitations that affects the standard model (SM) relations between electroweak observables. The mixing of the W and Z bosons with their excitations changes their masses and couplings to fermions. This effect depends on the Higgs field, which may live in the bulk of the extra dimension, on its boundary, or may be a combination of both types of fields. We use high-precision electroweak data to constrain 1/R. We find limits from 1 to 3 TeV from different observables, with a model independent bound of 2.5 TeV.
id cern-380378
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
record_format invenio
spelling cern-3803782023-03-14T18:57:28Zdoi:10.1103/PhysRevD.60.096005http://cds.cern.ch/record/380378engMasip, ManuelPomarol, AlexEffects of SM Kaluza-Klein excitations on electroweak observablesParticle Physics - PhenomenologyThe presence of an extra dimension of size R \approx TeV^{-1} introduces a tower of Kaluza-Klein gauge boson excitations that affects the standard model (SM) relations between electroweak observables. The mixing of the W and Z bosons with their excitations changes their masses and couplings to fermions. This effect depends on the Higgs field, which may live in the bulk of the extra dimension, on its boundary, or may be a combination of both types of fields. We use high-precision electroweak data to constrain 1/R. We find limits from 1 to 3 TeV from different observables, with a model independent bound of 2.5 TeV.The presence of an extra dimension of size R \approx TeV^{-1} introduces a tower of Kaluza-Klein gauge boson excitations that affects the standard model (SM) relations between electroweak observables. The mixing of the W and Z bosons with their excitations changes their masses and couplings to fermions. This effect depends on the Higgs field, which may live in the bulk of the extra dimension, on its boundary, or may be a combination of both types of fields. We use high-precision electroweak data to constrain 1/R. We find limits from 1 to 3 TeV from different observables, with a model independent bound of 2.5 TeV.hep-ph/9902467CERN-TH-99-47CERN-TH-99-047oai:cds.cern.ch:3803781999-02-26
spellingShingle Particle Physics - Phenomenology
Masip, Manuel
Pomarol, Alex
Effects of SM Kaluza-Klein excitations on electroweak observables
title Effects of SM Kaluza-Klein excitations on electroweak observables
title_full Effects of SM Kaluza-Klein excitations on electroweak observables
title_fullStr Effects of SM Kaluza-Klein excitations on electroweak observables
title_full_unstemmed Effects of SM Kaluza-Klein excitations on electroweak observables
title_short Effects of SM Kaluza-Klein excitations on electroweak observables
title_sort effects of sm kaluza-klein excitations on electroweak observables
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.60.096005
http://cds.cern.ch/record/380378
work_keys_str_mv AT masipmanuel effectsofsmkaluzakleinexcitationsonelectroweakobservables
AT pomarolalex effectsofsmkaluzakleinexcitationsonelectroweakobservables

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