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Electroweak phase transition beyond the Standard Model

Standard theories of electroweak interactions are based on the concept of a gauge symmetry broken by the Higgs mechanism. If they are placed in an environment with a sufficiently high temperature, the symmetry gets restored. It turns out that the characteristics of the symmetry restoring phase trans...

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Detalles Bibliográficos
Autor principal: Laine, M.
Lenguaje:eng
Publicado: 2000
Materias:
Acceso en línea:https://dx.doi.org/10.1142/9789812799913_0005
http://cds.cern.ch/record/471776
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author Laine, M.
author_facet Laine, M.
author_sort Laine, M.
collection CERN
description Standard theories of electroweak interactions are based on the concept of a gauge symmetry broken by the Higgs mechanism. If they are placed in an environment with a sufficiently high temperature, the symmetry gets restored. It turns out that the characteristics of the symmetry restoring phase transition, such as its order, are important for cosmological applications, such as baryon asymmetry generation. We first briefly review how, by a combination of analytic and numerical methods, the properties of the phase transition can be systematically resolved for any given type of a (weakly interacting) Higgs sector. We then summarise the numerical results available for the Standard Model, and present a generic model independent statement as to how the Higgs sector should differ from the Standard Model for the properties of the transition to be very different. As an explicit example, we discuss the possibilities available for a strong transition in the experimentally allowed parameter region of the Minimal Supersymmetric Standard Model.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
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spelling cern-4717762023-03-14T20:02:12Zdoi:10.1142/9789812799913_0005http://cds.cern.ch/record/471776engLaine, M.Electroweak phase transition beyond the Standard ModelParticle Physics - PhenomenologyStandard theories of electroweak interactions are based on the concept of a gauge symmetry broken by the Higgs mechanism. If they are placed in an environment with a sufficiently high temperature, the symmetry gets restored. It turns out that the characteristics of the symmetry restoring phase transition, such as its order, are important for cosmological applications, such as baryon asymmetry generation. We first briefly review how, by a combination of analytic and numerical methods, the properties of the phase transition can be systematically resolved for any given type of a (weakly interacting) Higgs sector. We then summarise the numerical results available for the Standard Model, and present a generic model independent statement as to how the Higgs sector should differ from the Standard Model for the properties of the transition to be very different. As an explicit example, we discuss the possibilities available for a strong transition in the experimentally allowed parameter region of the Minimal Supersymmetric Standard Model.hep-ph/0010275oai:cds.cern.ch:4717762000-10-24
spellingShingle Particle Physics - Phenomenology
Laine, M.
Electroweak phase transition beyond the Standard Model
title Electroweak phase transition beyond the Standard Model
title_full Electroweak phase transition beyond the Standard Model
title_fullStr Electroweak phase transition beyond the Standard Model
title_full_unstemmed Electroweak phase transition beyond the Standard Model
title_short Electroweak phase transition beyond the Standard Model
title_sort electroweak phase transition beyond the standard model
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1142/9789812799913_0005
http://cds.cern.ch/record/471776
work_keys_str_mv AT lainem electroweakphasetransitionbeyondthestandardmodel