Speaker
Description
Neutrinoless double beta decay ($0\nu\beta\beta$) is a hypothetical process that two neutrons in a nucleus simultaneously decay to protons, emitting two electrons but no anti-neutrinos. Searching for $0\nu\beta\beta$ is currently considered the only viable experimental technique to test the Majorana nature of neutrinos. As the $0\nu\beta\beta$ process violates lepton number conservation, its observation would provide major new insights to the beyond-the-Standard-Model (BSM) physics.
In this talk, a summary of the current and future large scale experiments searching for $0\nu\beta\beta$ is provided. In particular, a detailed description of the LEGEND experiment is provided. This ton-scale $^{76}$Ge-based $0\nu\beta\beta$ experiment has a discovery potential for $0\nu\beta\beta$ half-life beyond $10^{28}$ years. Other searches for BSM physics accessible to large-scale $0\nu\beta\beta$ experiments such as LEGEND will also be discussed.
