Mainz 2022 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 21: Astroparticle Physics I
HK 21.1: Gruppenbericht
Montag, 28. März 2022, 16:00–16:30, HK-H10
The Search for Neutrinoless Double-Beta Decay with LEGEND — •Michael Willers for the LEGEND collaboration — Physik-Department, Technische Universität München, Germany
The Large Enriched Germanium Experiment for Neutrinoless ββ Decay (LEGEND) is a ton-scale, 76Ge-based, neutrinoless double-beta (0νββ) decay experimental program with a discovery potential at half-lifes longer than 1028 years.
LEGEND employs a phased approach that enables the collaboration to gradually increase the detector mass and exposure, and at the same time reduce the background in the signal region of interest. The first, 200 kg, phase of the experiment (LEGEND-200) is being actively commissioned at the Gran Sasso underground laboratory (Laboratori Nazionali del Gran Sasso, LNGS) in Italy and data taking will start in 2022. The ton-scale phase of the experiment (LEGEND-1000) is currently in the conceptual design stage and construction is projected to start as early as 2025.
In this contribution, the ongoing commissioning activities at LNGS and the potential of LEGEND-200 will be presented and the prospects for the future ton-scale phase LEGEND-1000 will be discussed.
This work is supported in part by the German Research Foundation via the collaborative research center SFB1258 and the cluster of excellence ORIGINS, the German Federal Ministry for Education and Research, and the Max-Planck Society.