Speaker
Leon Friedrich
(The University of Melbourne)
Description
We examine the collider phenomenology of two standard model extensions relevant to electroweak baryogenesis. Firstly we study the hypercharge-zero SU(2) triplet scalar extended standard model, a common component of multi-step electroweak phase transition models. Secondly, we examine a model with vector-like lepton doublets and scalar singlets. We show that both of these models are constrained by existing multilepton searches at the LHC. We argue that with the advent of run 3 analyses and the high luminosity LHC these models, and similar electroweak multiplet scalar extensions relevant to electroweak baryogenesis, will be very strongly constrained.
Primary author
Leon Friedrich
(The University of Melbourne)
Co-authors
Matthew Dolan
(University of Melbourne)
Michael Ramsey-Musolf
(U. Massachusetts Amherst)
Nicole Bell
(University of Melbourne)
Raymond Volkas
(The University of Melbourne)
