Orateur
Description
Neutrinoless double-beta decay (0νββ) provides an exciting avenue for probing the absolute neutrino mass and the Majorana nature of the neutrino. Regardless of the mechanism involved in its production, the observation of 0νββ implies new physics, exhibiting lepton number violation, and providing insight into the matter-antimatter asymmetry in the universe. Ge detector technology is extremely well suited for this challenge. The Large Enriched Germanium Experiment for Neutrinoless Double-beta Decay (LEGEND) is making use of this technology to search for 0νββ in Ge-76-enriched detectors in the first phase of its experimental program, LEGEND-200. LEGEND builds on key technological innovations from GERDA and the MAJORANA DEMONSTRATOR, and aims to pursue a tonne-scale Ge-76 experiment in the next phase of its experimental program, LEGEND-1000. In this talk, an overview of the LEGEND experimental program will be presented, along with the 0νββ limit resulting from the combined analysis of the final GERDA and MAJORANA DEMONSTRATOR and first LEGEND-200 data sets.
