Karlsruhe 2024 – scientific programme
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T: Fachverband Teilchenphysik
T 58: Neutrino physics 8
T 58.2: Talk
Wednesday, March 6, 2024, 16:15–16:30, Geb. 30.22: Gaede-HS
Charge Senstive Amplifier R&D for the LEGEND-1000 Experiment — •Andreas Gieb, Florian Henkes, Susanne Mertens, and 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, experimental program searching for the neutrinoless double-beta (0νββ) decay.
The first 200 kg stage of the experiment, LEGEND-200, is currently taking data at Gran Sasso underground laboratory. The 1000 kg phase of the experiment, LEGEND-1000, aims to achieve discovery potential at half- lifes longer than 1028 years which covers the inverted-ordering neutrino mass scale. In order to achieve this, a significant reduction of background in the signal region of interest is necessary. An important role in this endeavor is a reduction in the background of the readout electronics due to its proximity to the detector, while ultimately improving noise performance and signal fidelity.
This contribution explores a novel approach to ASIC based front-end electronics, and present first results from measurements performed with a high-purity germanium detector.
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: LEGEND; Electronics; Neutrino; 0vBB