Seminarium "Teoria cząstek elementarnych i kosmologia"

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 possible observable consequences. It would be great to have a simple and model-independent description of the EWPT in terms of the Standard Model effective field theory (SM-EFT). In this talk I will first review the cosmology of the EWPT and introduce the effective field theory approach, before embarking on a discussion of the applicability and usefulness of the SM-EFT framework for the EWPT.
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