Speaker
Marieke Postma
Description
In electroweak baryogenesis the observed matter-antimatter asymmetry in the Universe is created during a first order electroweak phase transition. The scenario requires
new physics at the electroweak scale, which can be tested by current and upcoming experiments. Unfortunately, theoretical pedictions for the baryon asymmetry may vary by orders of magnitude, depending on the approximation scheme used. A careful and systemetic analysis of the so-called vev-insertion-approximation scheme shows that the leading order contributions to the asymmetry cancel exactly, making this approach much less efficient than previously thought.
Primary author
Co-authors
Graham White
(Southampton)
Jorinde Marjolein Van De Vis
