The Baryon asymmetry in the standard model with a low cut-off

Bödeker, Dietrich, Fromme, Lars, Huber, Stephan J and Seniuch, Michael (2005) The Baryon asymmetry in the standard model with a low cut-off. Journal of High Energy Physics (2). ISSN 1126-6708

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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.

Item Type: Article
Additional Information: pp. 026
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Stephan Huber
Date Deposited: 06 Feb 2012 20:13
Last Modified: 03 Jul 2019 01:30

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