Speaker
Description
Observation of the neutrinoless double-beta ($0\nu\beta\beta$) decay would demonstrate lepton number violation and provide insights into matter-antimatter asymmetry and the Majorana nature of neutrino. It is a challenging quest that requires experimental conditions ensuring little to no background and superb energy resolution. The Large Enriched Germanium Experiment for $0\nu\beta\beta$ decay (LEGEND) is designed to provide such conditions, aiming at unambiguous discovery of $0\nu\beta\beta$ decay of ${}^{76}$Ge.
Its first and current stage, LEGEND-200, utilizes up to 200 kg of high purity ${}^{76}$Ge-enriched detectors, and will be operating for 5 years as a natural step towards the final 1000-kg phase. LEGEND-200 is located at LNGS, Italy. Its commissioning was completed in Oct 2022, and physics data taking started in Mar 2023. In this talk I will summarize the status of LEGEND-200 and its current and future milestones. The talk is presented on behalf of the LEGEND collaboration.
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