# A novel detector system for KATRIN to search for keV-scale sterile neutrinos

Authors
And 2 more
Type
Preprint
Publication Date
Oct 15, 2018
Submission Date
Oct 15, 2018
Identifiers
DOI: 10.1088/1361-6471/ab12fe
Source
arXiv
Sterile neutrinos are a minimal extension of the Standard Model of Particle Physics. If their mass is in the kilo-electron-volt regime, they are viable dark matter candidates. One way to search for sterile neutrinos in a laboratory-based experiment is via tritium-beta decay, where the new neutrino mass eigenstate would manifest itself as a kink-like distortion of the $\beta$-decay spectrum. The objective of the TRISTAN project is to extend the KATRIN setup with a new multi-pixel silicon drift detector system to search for a keV-scale sterile neutrino signal. In this paper we describe the requirements of such a new detector, and present first characterization measurement results obtained with a 7-pixel prototype system.