Heidelberg 2022 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
T: Fachverband Teilchenphysik
T 21: Neutrino Physics without Accelerators 2
T 21.1: Gruppenbericht
Montag, 21. März 2022, 16:15–16:35, T-H34
Sterile neutrino search at the keV mass scale with KATRIN — •Frank Edzards for the KATRIN collaboration1, Marco Carminati2, 3, David Fink1, Carlo Fiorini2, 3, Matteo Gugiatti2, 3, Pietro King2, 3, and Peter Lechner4 — 1Max Planck Institute for Physics, Munich, Germany — 2DEIB, Politecnico di Milano, Milano, Italy — 3INFN, Sezione di Milano, Milano, Italy — 4Halbleiterlabor der Max Planck Gesellschaft, Munich, Germany
Sterile neutrinos are a natural extension of the Standard Model of particle physics. If their mass is in the keV range, they are a viable dark matter candidate. One way to search for sterile neutrinos in a laboratory-based experiment is via tritium beta decay. A sterile neutrino with a mass up to 18.6\,keV would manifest itself in the decay spectrum as a kink-like distortion. The objective of the TRISTAN project is to extend the KATRIN experiment with a novel multi-pixel silicon drift detector and readout system to search for a keV-scale sterile neutrino signal. This talk will give an overview on the current status of the project. First characterization measurement results obtained with a 166 pixel system will be shown. This work is supported by BMBF (05A17PM3, 05A17PX3, 05A17VK2, 05A17WO3), KSETA, the Max Planck society, and the Helmholtz Association.