Göttingen 2025 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 81: Neutrino Physics VI
T 81.5: Vortrag
Donnerstag, 3. April 2025, 17:15–17:30, VG 3.103
Simulations regarding the water tank instrumentation for LEGEND-1000 — •Eric Esch — University Tübingen, Tübingen, Germany
In order to reach the challenging background goal of less than 10−5 cts/(keV·kg·yr) targeted by the next phase of the Large Enriched Germanium Experiment for Neutrinoless ββ Decay (LEGEND), new detector systems have to be planned and optimized. Previous Monte Carlo studies have revealed that the in-situ production and delayed decays of 77Ge and its metastable state 77mGe constitute a significant cosmogenic background. This talk will present recent simulations exploring the instrumentation of the water tank, aimed at mitigating these contributions. Specifically, the instrumentation seeks to identify and veto events produced by neutron-showering muons, the key source of 77(m)Ge background.
Keywords: LEGEND; Neutrontagger; Myonveto; Ge77; 0vbb