Göttingen 2025 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 16: Neutrino Physics I
T 16.1: Vortrag
Montag, 31. März 2025, 16:45–17:00, VG 3.103
Recent advances in the search for 0νββ decay of 76Ge with LEGEND-200 — •Moritz Neuberger for the LEGEND collaboration — Physik-Department E15 Technische Universität München James-Franck-Straße D-85748 Garching Germany
The LEGEND collaboration’s objective is to detect neutrinoless double-beta (0νββ) decay in 76Ge using state-of-the-art enriched high-purity germanium (HPGe) detectors. In its first phase, LEGEND-200, the experiment has collected physics data for over a year, employing 140 kg of HPGe detectors in a liquid argon cryostat. This talk presents the results of the 0νββ decay analysis based on this data set. Furthermore, we will provide updates on integrating additional HPGe detectors and discuss auxiliary studies used to develop our background model further.
This research is supported by the DFG through the Excellence Cluster ORIGINS EXC 2094 - 390783311, the SFB1258, and by the BMBF Verbundprojekt 05A2023.
Keywords: Neutirnoless double-beta decay; high-purity germanium detectors; liquid argon; recent result; background model