First physics results from the LEGEND-200 experiment

The discovery of Neutrinoless double beta decay (0νββ) would provide unambiguous evidence for the Majorana nature of neutrinos, lepton number non-conservation and a measurement of the absolute neutrino mass scale. The Large Enriched Germanium Experiment for Neutrinoless ββ decay (LEGEND) is a phased search for 0νββ in the ⁷⁶Ge isotope with enriched high-purity germanium (HPGe) detectors. The first phase, LEGEND-200, located at LNGS, Italy, has been successfully acquiring data for over a year with 142 kg of HPGe detectors. With an expected exposure of 1 ton-year and a background index in the region of interest of less than 2 × 10^-4 cts/(keV kg yr), LEGEND-200 will reach a discovery sensitivity of a half-life of 10²⁷ years. The performance of the LEGEND-200 experiment over the past year and a limit for the half-life for the ⁷⁶Ge isotope will be presented.