Speaker
Marek Lewicki
(University of Warsaw)
Description
I will discuss the impact on electroweak baryogenesis from a swifter cosmological
expansion induced by modified cosmological history of the universe.
I will also detail the experimental bounds that one can place on such models.
The modifications can be sizeable if the expansion rate of the Universe increases by several orders of magnitude.
I will focus on the Standard Model supplemented by a dimension six operator directly modifying the Higgs boson potential
and show that due to the modified cosmological history, electroweak baryogenesis can
be realized, while keeping deviations of the triple Higgs coupling below HL-LHC sensitivies.
Primary author
Marek Lewicki
(University of Warsaw)
