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Résumé |
Effective field theory is an attractive framework to study Electroweak
Baryogenesis in a model-independent way. We add a dimension-six operator to the
Higgs potential in order to have a strongly first order phase transition, which
is necessary for successful baryogenesis. Another necessary ingredient is CP-
violation, which can be provided by dimension-six interactions between the
Higgs and, for example, the top quark. We study two of these operators that are
related by the equations of motion. In our study we test the applicability of
the effective field theory framework to electroweak baryogenesis. We also make
a comparison between the asymmetries obtained from CP-violating interactions
involving the top-quark and the tau-lepton.
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