Neutrinoless double beta decay search with LEGEND-200 experiment

Abstract

The search for neutrinoless double beta decay is a topic of broad and current interest in modern physics. Its discovery would prove unambiguously not only the existence of new lepton-number violating physics but also its connection to the origin of neutrino mass. The LEGEND collaboration follows the Gerda and Majorana collaborations and works to develop the largest 76 Ge based neutrinoless double beta decay decay experiment. As a first phase, the LEGEND-200 experiment is being installed in the upgraded Gerda infrastructure at Laboratori Nazionali del Gran Sasso of INFN. It is based on 200 kg of high-purity germanium detectors and aims to reach a discovery sensitivity on the neutrinoless double beta decay half-life of 10 27 years. An overview of the LEGEND-200 setup and its status will be provided.