Speaker
Jorinde Marjolein van de Vis
(T (Cosmology))
Description
In electroweak baryogenesis, the asymmetry between matter and antimatter is generated during the electroweak phase transition. Predicting the amount of matter requires a derivation of transport equations for the CP-violating particles. For a long time, two different formalisms were
used in the literature: the semi-classical method and the vev-insertion
approximation. The latter typically yielded a much larger value for the
asymmetry, such that certain models for electroweak baryogenesis were only consistent with observations if the vev-insertion approximation was correct. In this talk, I will argue that the CP-violating source derived in the vev-insertion approximation is a mere artefact, and in fact vanishes completely.
Primary author
Jorinde Marjolein van de Vis
(T (Cosmology))
