Speaker
Alain Blondel
(UNIGE)
Description
With the discovery of the Higgs H(126) boson at the LHC, the Standard Model of particle physics is still lacking an understanding of the generation and nature of neutrino masses. Dirac mass term? Majorana mass term? The favorite theoretical scenario is that both mass terms are present, leading to the existence of heavy partners of the light neutrinos, presumably more massive and nearly sterile. For suitable choices of parameters the heavy neutrinos can serve as good candidates for dark matter, and generate the baryon asymmetry of the universe. These heavy neutrinos can be searched for at high energy lepton colliders of very high luminosity, such as the Future e+e- Circular Collider, FCC-ee, presently studied within Future Circular Collider study at CERN as a possible first step. A first look at sensitivities both from neutrino counting and and from search for heavy neutrino decay will be presented.
Primary author
Alain Blondel
(UNIGE)
