2019/05/16 by V. D’Andrea, D'Andrea, V.
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Instrumentation and Detectors (physics.ins-det) #Neutrino Physics Research #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.1905.06572
openalex publication_date 2019/05/16 · openalex created_date 2019/05/29 · openalex updated_date 2026/07/28
The search for neutrinoless double beta (0νββ) decay is the best way to test lepton number violation and Majorana nature of neutrinos. One of the most promising techniques to discover 0νββ decay is by operating High-Purity Ge detectors enriched in 76Ge. The current generation of 76Ge experiments, GERDA and MAJORANA, lead the field in the achieved energy resolution and ultra-low background. These are two of the most important characteristics for sensitive searches of this undiscovered decay. The next generation of 0νββ decay experiments requires more mass and further reduction of backgrounds to maximize the discovery potential. Building on the successes of GERDA and MAJORANA, the LEGEND collaboration has been formed to pursue a tonne-scale 76Ge experiment, with a discovery potential projected to be a half-life beyond 1028 years. The collaboration aims to develop a phased experimental program, starting with a 200 kg measurement by repurposing the existing Gerda infrastructure.