Electroweak baryogenesis and the triple Higgs boson coupling

Details Electroweak baryogenesis and the triple Higgs boson coupling Electroweak baryogenesis and the triple Higgs boson coupling

2005-07-22

arxiv.org/abs/hep-ph/0507259v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 8 figures. Talk given by E. Senaha at 2005 International Linear Collider Workshop (LCWS 2005), Stanford, California,

Scientific paper

We study collider signatures of electroweak baryogenesis in the two Higgs doublet model and the minimal supersymmetric standard model. It is found that the trilinear coupling of the lightest Higgs boson receives large quantum corrections if the electroweak phase transition is strongly first order for successful baryogenesis. In the two Higgs doublet model, the magnitude of the deviation from the standard model value is shown to be larger than 10 percent. Such a deviation can be detected at a future electron-positron linear collider.

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