Göttingen 2025 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 82: Neutrino Physics VII
T 82.4: Vortrag
Donnerstag, 3. April 2025, 17:00–17:15, VG 3.104
Charge Sensitive Amplifier R&D for the LEGEND-1000 Experiment — •Andreas Gieb, Florian Henkes, Susanne Mertens, and Michael Willers for the LEGEND collaboration — Technische Universität München, Deutschland
The Large Enriched Germanium Experiment for Neutrinoless Double-Beta Decay (LEGEND) uses 76Ge to search for neutrinoless double-beta (0νββ) decay. The LEGEND-200 phase, currently operating at Gran Sasso, serves as a precursor to LEGEND-1000, a 1000-kg experiment designed to achieve discovery sensitivity at half-lives exceeding 1028 years, targeting the inverted-ordering neutrino mass scale. Reaching this sensitivity requires ultra-low background levels and exceptional energy resolution in the region of interest.
To meet these requirements, readout electronics near the detectors play a critical role. An application-specific integrated circuit (ASIC)-based front-end system has been developed to achieve low background while maintaining low noise and high energy resolution. This work presents the results of the first ASIC iteration and outlines changes for the second iteration.
We acknowledge support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy - EXC 2094 - 390783311 and through the Sonderforschungsbereich (Collaborative Research Center) SFB1258 ’Neutrinos and Dark Matter in Astro- and Particle Physics’.
Keywords: Neutrino; LEGEND; ASIC