Marieke Postma | The electroweak phase transition: is effective field theory just a toy?

laatste update: 05-2023

[ All Things EFT 49 | Dec 1, 2021 ]
When the universe was a fraction of nano-second old the electroweak phase transition (EWPT) took place in which elementary particles obtained masses via the Higgs mechanism. In extensions of the Standard Model this transition can be first order with possibly observable consequences. It would be great to have a simple and model-independent description of this process in terms of the Standard Model effective field theory (SM-EFT). In this talk, Marieke Postma reviews the dynamics of the phase transition and introduces the effective field theory approach, followed by a discussion of the applicability and usefulness of the SM-EFT framework for the EWPT.