Speaker
Description
The origin of the neutrinos masses, baryon asymmetry in the universe, and the nature of dark matter remain fundamental open problems in HEP. The FCC-ee provides exciting opportunities to resolve these mysteries with the discovery of heavy neutral leptons (HNLs) via e+e- → Z → vN by exploiting a huge sample ($5\cdot 10^{12}$) of Z bosons. The expected very small mixing between light and heavy neutrinos leads to tiny mixing angles, resulting in very long HNL lifetimes and a spectacular signal topology. Recent work based on a parametrised simulation of the IDEA detector will be described. The sensitivity region in the HNL parameter space will be mapped for prompt and long-lived signatures, with emphasis on background reduction, and detector requirements. A percent-level mass resolution can be achieved with inner-detector timing over large part of the HNL parameter space. Results of models with HNLs oscillations inside the detector will be also presented.
| Alternate track | 02. Neutrino Physics |
|---|---|
| I read the instructions above | Yes |
