Probes of Heavy Sterile Neutrinos

Abstract

We review probes of heavy sterile neutrinos, focusing on direct experimental searches and neutrinoless double beta decay. Working in a phenomenological parametrization, we emphasize the importance of the nature of sterile neutrinos in interpreting neutrinoless double beta decay searches. While current constraints on the active-sterile neutrino mixing are already stringent, we highlight planned future efforts that will probe regimes motivated by the lightness of active neutrinos.

arXiv commentContribution to the 2022 EW session of the 56th Rencontres de Moriond, Author Accepted Manuscript