Neutrino mass and nature: neutrinoless double beta decay – towards LEGEND-1000 (N01)

• Subject Area: Nuclear and Elementary Particle Physics, Quantum Mechanics, Relativity, Fields ; Astrophysics and Astronomy
• Term: since 2017
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 283604770

N01 intends to advance novel detectors and background mitigation techniques to search for Majorana neutrinos. The long-term goal is to reach a discovery sensitivity for Majorana neutrino masses below 20 meV, searching for neutrinoless double-beta decays of 76Ge. We propose to develop a low-background detector assembly for LEGEND-1000, focusing on high-purity PEN material, low-background ASIC electronics, and liquid argon instrumentation complemented by MC simulations to demonstrate the required background levels' feasibility.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1258: Neutrinos and Dark Matter in Astro- and Particle Physics (NDM)
• Applicant Institution: Technische Universität München (TUM)
• Project Heads: Professor Dr. Béla Majorovits; Professorin Dr. Susanne Mertens, since 7/2021; Professor Dr. Stefan Schönert