SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 37: Neutrinos, Dark Matter IV

T 37.1: Vortrag

Dienstag, 21. März 2023, 17:00–17:15, POT/0251

Characterisation of the first 166-pixel TRISTAN detector module in a MAC-E filter environment — •Christina Bruch — Technical University Munich, James-Franck-Straße 1, 85748 Garching bei München

One possible Dark Matter candidate is the keV-scale sterile neutrino, that would only interact via the mixing of sterile and active eigenstates. In a tritium beta decay spectrum, this mixing would lead to a characteristic, kink-like signature for sterile neutrinos with masses up to 18.6 keV. The KATRIN experiment will be upgraded with a novel TRISTAN multi-pixel silicon drift detector and readout system to search for this signature.

The final TRISTAN detector will consist of multiple 166 pixel detector modules. This presentation will give an overview of the first characterisation with electrons of one of this 166 pixel detector modules in the KATRIN Monitor Spectrometer, which is a KATRIN-like MAC-E filter environment.

This project has received funding from the European Research Council (ERC) under the European Union Horizon 2020 research and innovation program (grant agreement No. 852845). In addition, this work is supported by BMBF (05A17PM3, 05A17PX3, 05A17VK2, 05A17WO3), KSETA, the Max Planck society, and the Helmholtz Association.