Speaker
Description
Sterile neutrinos are among the most attractive extensions of the SM to generate the light neutrino masses observed in neutrino oscillation experiments.
When the sterile neutrinos are subject to a protective symmetry, they can have masses around the electroweak scale and potentially large neutrino Yukawa couplings, which makes them testable at planned future particle colliders.
In this talk I discuss the production and decay channels at electron-positron, proton-proton and electron-proton colliders and provide a complete list of the leading order signatures for sterile neutrino searches.
Among other things, I also discuss several novel and exotic search channels, such as displaced vertex searches and heavy neutrino-antineutrino oscillation.
The possible sensitivities for the active-sterile mixings and the heavy neutrino masses at the future circular colliders, as studied at CERN within the FCC study, will be presented.
