SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 15: Neutrinos, Dark Matter III

T 15.6: Vortrag

Montag, 20. März 2023, 17:45–18:00, POT/0006

Characterization of a TRISTAN detector with a laser system — •Christian Forstner for the KATRIN collaboration — Technical University Munich, James-Franck-Straße 1, 85748 Garching bei München

Sterile neutrinos are a minimal extension of the Standard Model of particle physics. These neutrinos are a dark matter candidate if their mass is in the keV range. They can be accessed experimentally in the tritium beta decay, if they have a mass of up to 18.6 keV and would manifest themselves as a kink-like distortion in the electron energy spectrum. For the KATRIN experiment, a novel silicon drift detector and read-out system is developed to search for this signal. In this presentation, the results of the characterization of a 7 pixel TRISTAN detector with a laser system will be presented and compared to simulations.

This work is supported by BMBF (05A17PM3, 05A17PX3, 05A17VK2, 05A17WO3), KSETA, the Max Planck society, and the Helmholtz Association. 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).