Theory Seminar

Heavy neutrino searches at future colliders

by Stefan Antusch (University of Basel, Switzerland)

Europe/Berlin
313 (MPI Meeting rooms)

313

MPI Meeting rooms

Description
Sterile neutrinos are attractive extensions of the Standard Model of particle physics 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 the LHC and possible future particle colliders. We discuss the production and decay channels at electron-positron, proton-proton and electron-proton colliders and highlight promising signatures for sterile neutrino searches. We also discuss the conditions under which lepton number violation could be observable at colliders, and the recent proposal to search for resolvable oscillations of heavy neutrinos into antineutrinos when they are sufficiently long-lived to decay displaced from the primary vertex.