Speaker
Farbod Rassouli
(University of Nottingham)
Description
I present an EFT framework for strong, indeed the strongest, cosmological phase transitions this is precisely where standard high-temperature dimensional reduction fails. After reviewing high-temperature dimensional reduction for weak and intermediate transitions and pinpointing where its standard assumptions fail we construct EFTs that remain valid for very strong transitions. The approach applies to Higgs-like and multi-field models, including those with tree-level barriers.
Authors
Farbod Rassouli
(University of Nottingham)
Oliver Gould
(University of Nottingham)
Paul Saffin
(University of Nottingham)
