Speaker
Description
The LEGEND collaboration aims to detect neutrinoless double-beta (0νββ) decay in $^{76}$Ge using enriched high-purity germanium (HPGe) detectors. In its first phase, LEGEND-200, the experiment has been collecting physics data for over a year using 140 kg of HPGe detectors deployed in a liquid argon cryostat, with plans to add more detectors in the near future. In this talk, we present the results of the 0νββ analysis based on this data set. We will discuss the experiment's performance in terms of background suppression, signal acceptance, and bounds on the 0νββ decay half-life. In addition, we present the combined analysis of LEGEND-200 and the previous $^{76}$Ge-based experiments GERDA and Majorana Demonstrator. Finally, we give an overview of the current planning for LEGEND-1000, the next phase of the experiment.
