Speaker
Lukas Graf
Description
The observation of neutrinoless double beta decay would have far-reaching consequences for particle physics, as it would be a clear manifestation of lepton number violation and it would give a hint on the origin of neutrino masses. While searching for neutrinoless double beta decay, a significant amount of the two-neutrino double beta decay data has been collected by a number of experiments. Although these events are typically regarded and studied as the background of the neutrinoless process, I will show they can be also used to probe physics beyond the Standard Model. Specifically, I will discuss two-neutrino double beta decay contributions induced by right-handed vector currents, sterile neutrinos and neutrino self-interactions.
