First Background Results from LEGEND-200
ORAL
Abstract
The Large Enriched Germanium Experiment for Neutrinoless double-beta Decay (LEGEND) is designed to search for neutrinoless double-beta decay (0νββ) in the 76Ge isotope. The first phase, LEGEND-200, aims for a discovery sensitivity at a half life of 1027 years and requires a reduction of backgrounds by a factor of 2.5 with respect to previous experiments. The performance of LEGEND-200 is critical for the design and development of the subsequent phase, LEGEND-1000. LEGEND-200 has currently been operating with 101 detectors (142 kg) installed into the array, with low-background data-taking having started in early 2023. In this talk we will cover the performance of background rejection techniques and will present results from the first months of LEGEND-200 data-taking.
*This work is supported by the U.S. DOE and the NSF, the LANL, ORNL and LBNL LDRD programs; the European ERC and Horizon programs; the German DFG, BMBF, and MPG; the Italian INFN; the Polish NCN and MNiSW; the Czech MEYS; the Slovak SRDA; the Swiss SNF; the UK STFC; the Russian RFBR; the Canadian NSERC and CFI; the LNGS, SNOLAB, and SURF facilities.
–
Presenters
-
Erin Engelhardt