SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 139: Neutrinos VI

T 139.3: Vortrag

Donnerstag, 23. März 2023, 18:00–18:15, POT/0051

CEvNS and searches for new physics with the CONUS experiment — •Sophie Armbruster for the CONUS collaboration — Max-Planck-Institut für Kernphysik, Heidelberg

The CONUS experiment (COherent elastic NeUtrino nucleus Scattering) aims to detect coherent elastic neutrino-nucleus scattering (CEvNS) of reactor antineutrinos on germanium nuclei in the fully coherent regime. The CONUS experiment - operated in the Brokdorf nuclear power plant (Germany) between April 2018 and December 2022- was located at 17m from the 3.9 GWth core. The possible CEvNS signature was studied with four 1 kg point-contact high-purity germanium (HPGe) detectors, which provided a sub keV energy threshold with background rates in the order of 10 events per kg, day and keV. The analysis of the final CONUS data set allows us to establish competitive limits on CEvNS from a nuclear reactor with a germanium target. The most recent results including constraints on beyond the Standard Model parameters will be presented together with future plans of the project.