Low-scale seesaw models, lepton number conservation and Higgs physics
Cedric Wieland, Durham University
Weekly Theory Seminar.
Abstract. The observation of neutrino oscillations requires an extension of the Standard Model that generates neutrino masses and mixing. One of the simplest possibility is the addition of right-handed neutrinos, naturally leading to seesaw mechanisms. Low-scale realisations of this idea are phenomenologically appealing, since they could be tested in both collider and low-energy experiments. We will first prove that in the limit of massless light neutrinos, all these models conserve lepton number. In a second part, I will discuss how studies of the triple Higgs coupling can be used to probe neutrino mass models in a regime otherwise difficult to access.
(The slides will be available here)