Description
Chair: Ansh Bhatnagar
There are a multitude of Standard Model extensions that can accommodate a first-order electroweak phase transition in the Early Universe, with the aim of providing an explanation for the observed baryon asymmetry. In this talk, I will introduce a particular extension: a Two Higgs Doublet Model plus a SM singlet pseudoscalar (2HDM+a). I will discuss how one starts from this model and ends with...
I will present a natural mechanism to achieve resonant leptogenesis through a novel approach involving thermal corrections to sterile neutrino masses. In standard leptogenesis, right-handed neutrinos are introduced as an extension to the Standard Model, generating a lepton asymmetry via CP-violating decays. This asymmetry is then converted into a baryon asymmetry through sphaleron processes....
