Aachen 2019 – wissenschaftliches Programm
T 80.1: Gruppenbericht
Donnerstag, 28. März 2019, 16:00–16:20, S06
The Large Enriched Germanium Experiment for Neutrinoless double beta Decay - Legend — •Christoph Wiesinger for the LEGEND collaboration — Physik-Department, Technische Universität München, James-Franck-Straße, 85748 Garching
Isotopically modified high-purity germanium detectors offer unique properties to search for neutrinoless double beta (0νββ) decay. The currently operating 76Ge experiments — Gerda and Majorana demonstrator — have achieved the lowest background rate in the signal region. The Large Enriched Germanium Experiment for Neutrinoless double beta Decay (Legend) is building on these experiences. The combination of an ultra-low background environment with active background rejection techniques will allow an almost background-free exploration of 0νββ decay half-lives two orders of magnitude beyond our current reach. In the first phase, 200 kg of 76Ge-enriched germanium will be deployed in the existing Gerda infrastructure at the Laboratori Nazionali del Gran Sasso (LNGS) of INFN. The status of this next-generation 0νββ decay project will be presented in the talk.
This work has been supported in part by the German Federal Ministry for Education and Research (BMBF) and the German Research Foundation (DFG) via the SFB1258.