The Baryon asymmetry in the Standard Model with a low cut-off

We study the generation of the baryon asymmetry in a variant of the standard model, where the Higgs field is stabilized by a dimension-six interaction. Analyzing the one-loop potential, we find a strong first order electroweak phase transition for Higgs masses up to at least 170 GeV. Dimension-six o...

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Detalles Bibliográficos
Autores principales: Bodeker, Dietrich, Fromme, Lars, Huber, Stephan J., Seniuch, Michael
Lenguaje:eng
Publicado: 2004
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1088/1126-6708/2005/02/026
http://cds.cern.ch/record/812706
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author Bodeker, Dietrich
Fromme, Lars
Huber, Stephan J.
Seniuch, Michael
author_facet Bodeker, Dietrich
Fromme, Lars
Huber, Stephan J.
Seniuch, Michael
author_sort Bodeker, Dietrich
collection CERN
description We study the generation of the baryon asymmetry in a variant of the standard model, where the Higgs field is stabilized by a dimension-six interaction. Analyzing the one-loop potential, we find a strong first order electroweak phase transition for Higgs masses up to at least 170 GeV. Dimension-six operators induce also new sources of CP violation. We compute the baryon asymmetry in the WKB approximation. Novel source terms in the transport equations enhance the generated baryon asymmetry. For a wide range of parameters the model predicts a baryon asymmetry close to the observed value.
id cern-812706
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
record_format invenio
spelling cern-8127062023-10-04T08:13:58Zdoi:10.1088/1126-6708/2005/02/026http://cds.cern.ch/record/812706engBodeker, DietrichFromme, LarsHuber, Stephan J.Seniuch, MichaelThe Baryon asymmetry in the Standard Model with a low cut-offParticle Physics - PhenomenologyWe study the generation of the baryon asymmetry in a variant of the standard model, where the Higgs field is stabilized by a dimension-six interaction. Analyzing the one-loop potential, we find a strong first order electroweak phase transition for Higgs masses up to at least 170 GeV. Dimension-six operators induce also new sources of CP violation. We compute the baryon asymmetry in the WKB approximation. Novel source terms in the transport equations enhance the generated baryon asymmetry. For a wide range of parameters the model predicts a baryon asymmetry close to the observed value.We study the generation of the baryon asymmetry in a variant of the standard model, where the Higgs field is stabilized by a dimension-six interaction. Analyzing the one-loop potential, we find a strong first order electroweak phase transition for Higgs masses up to at least 170 GeV. Dimension-six operators induce also new sources of CP violation. We compute the baryon asymmetry in the WKB approximation. Novel source terms in the transport equations enhance the generated baryon asymmetry. For a wide range of parameters the model predicts a baryon asymmetry close to the observed value.hep-ph/0412366BI-TP-2004-41CERN-PH-TH-2004-258CERN-PH-TH-2004-258BI-TP-2004-41oai:cds.cern.ch:8127062004-12-23
spellingShingle Particle Physics - Phenomenology
Bodeker, Dietrich
Fromme, Lars
Huber, Stephan J.
Seniuch, Michael
The Baryon asymmetry in the Standard Model with a low cut-off
title The Baryon asymmetry in the Standard Model with a low cut-off
title_full The Baryon asymmetry in the Standard Model with a low cut-off
title_fullStr The Baryon asymmetry in the Standard Model with a low cut-off
title_full_unstemmed The Baryon asymmetry in the Standard Model with a low cut-off
title_short The Baryon asymmetry in the Standard Model with a low cut-off
title_sort baryon asymmetry in the standard model with a low cut-off
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1088/1126-6708/2005/02/026
http://cds.cern.ch/record/812706
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