The baryon asymmetry in the standard model with a low cut-off -: art. no. 026

被引：0

作者：

Bödeker, D

Fromme, L

Huber, SJ

Seniuch, M

机构：

[1] Univ Bielefeld, Fak Phys, D-33615 Bielefeld, Germany

[2] CERN, Div Theory, Dept Phys, CH-1211 Geneva, Switzerland

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2005年 / 02期

关键词：

cosmology of theories beyond the SM; baryogenesis;

D O I：

暂无

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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.

引用

页数：22

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