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Radiative Symmetry Breaking in Brane Models
We propose a way to generate the electroweak symmetry breaking radiatively in non-supersymmetric type I models with string scale in the TeV region. By identifying the Higgs field with a tree-level massless open string state, we find that a negative squared mass term can be generated at one loop. It...
Autores principales: | , , |
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Lenguaje: | eng |
Publicado: |
2000
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1016/S0550-3213(00)00357-6 http://cds.cern.ch/record/434173 |
_version_ | 1780895358115643392 |
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author | Antoniadis, Ignatios Benakli, K. Quiros, M. |
author_facet | Antoniadis, Ignatios Benakli, K. Quiros, M. |
author_sort | Antoniadis, Ignatios |
collection | CERN |
description | We propose a way to generate the electroweak symmetry breaking radiatively in non-supersymmetric type I models with string scale in the TeV region. By identifying the Higgs field with a tree-level massless open string state, we find that a negative squared mass term can be generated at one loop. It is finite, computable and typically a loop factor smaller than the string scale, that acts as an ultraviolet cutoff in the effective field theory. When the Higgs open string has both ends confined on our world brane, its mass is predicted to be around 120 GeV, i.e. that of the lightest Higgs in the minimal supersymmetric model for large $\tan\beta$ and $m_A$. Moreover, the string scale turns out to be one to two orders of magnitude higher than the weak scale. We also discuss possible effects of higher order string threshold corrections that might increase the string scale and the Higgs mass. |
id | cern-434173 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2000 |
record_format | invenio |
spelling | cern-4341732023-03-14T17:14:26Zdoi:10.1016/S0550-3213(00)00357-6http://cds.cern.ch/record/434173engAntoniadis, IgnatiosBenakli, K.Quiros, M.Radiative Symmetry Breaking in Brane ModelsParticle Physics - PhenomenologyWe propose a way to generate the electroweak symmetry breaking radiatively in non-supersymmetric type I models with string scale in the TeV region. By identifying the Higgs field with a tree-level massless open string state, we find that a negative squared mass term can be generated at one loop. It is finite, computable and typically a loop factor smaller than the string scale, that acts as an ultraviolet cutoff in the effective field theory. When the Higgs open string has both ends confined on our world brane, its mass is predicted to be around 120 GeV, i.e. that of the lightest Higgs in the minimal supersymmetric model for large $\tan\beta$ and $m_A$. Moreover, the string scale turns out to be one to two orders of magnitude higher than the weak scale. We also discuss possible effects of higher order string threshold corrections that might increase the string scale and the Higgs mass.We propose a way to generate the electroweak symmetry breaking radiatively in non-supersymmetric type I models with string scale in the TeV region. By identifying the Higgs field with a tree-level massless open string state, we find that a negative squared mass term can be generated at one loop. It is finite, computable and typically a loop factor smaller than the string scale, that acts as an ultraviolet cutoff in the effective field theory. When the Higgs open string has both ends confined on our world brane, its mass is predicted to be around 120 GeV, i.e. that of the lightest Higgs in the minimal supersymmetric model for large $\tan\beta$ and $m_A$. Moreover, the string scale turns out to be one to two orders of magnitude higher than the weak scale. We also discuss possible effects of higher order string threshold corrections that might increase the string scale and the Higgs mass.We propose a way to generate the electroweak symmetry breaking radiatively in non-supersymmetric type I models with string scale in the TeV region. By identifying the Higgs field with a tree-level massless open string state, we find that a negative squared mass term can be generated at one loop. It is finite, computable and typically a loop factor smaller than the string scale, that acts as an ultraviolet cutoff in the effective field theory. When the Higgs open string has both ends confined on our world brane, its mass is predicted to be around 120 GeV, i.e., that of the lightest Higgs in the minimal supersymmetric model for large tan β and m A . Moreover, the string scale turns out to be one to two orders of magnitude higher than the weak scale. We also discuss possible effects of higher order string threshold corrections that might increase the string scale and the Higgs mass.hep-ph/0004091CERN-TH-2000-103CPHT-S013-0300IEM-FT-201-00LPTENS-00-16CERN-TH-2000-103CPTH-S-2000-13IEM-FT-201LPT-ENS-2000-16oai:cds.cern.ch:4341732000-04-10 |
spellingShingle | Particle Physics - Phenomenology Antoniadis, Ignatios Benakli, K. Quiros, M. Radiative Symmetry Breaking in Brane Models |
title | Radiative Symmetry Breaking in Brane Models |
title_full | Radiative Symmetry Breaking in Brane Models |
title_fullStr | Radiative Symmetry Breaking in Brane Models |
title_full_unstemmed | Radiative Symmetry Breaking in Brane Models |
title_short | Radiative Symmetry Breaking in Brane Models |
title_sort | radiative symmetry breaking in brane models |
topic | Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1016/S0550-3213(00)00357-6 http://cds.cern.ch/record/434173 |
work_keys_str_mv | AT antoniadisignatios radiativesymmetrybreakinginbranemodels AT benaklik radiativesymmetrybreakinginbranemodels AT quirosm radiativesymmetrybreakinginbranemodels |