학술논문
A novel detector system for KATRIN to search for keV-scale sterile neutrinos
Document Type
Working Paper
Author
Mertens, Susanne; Alborini, Antonio; Altenmüller, Konrad; Bode, Tobias; Bombelli, Luca; Brunst, Tim; Carminati, Marco; Fink, David; Fiorini, Carlo; Houdy, Thibaut; Huber, Anton; Korzeczek, Marc; Lasserre, Thierry; Lechner, Peter; Manotti, Michele; Peric, Ivan; Radford, David C.; Siegmann, Daniel; Slezák, Martin; Valerius, Kathrin; Wolf, Joachim; Wüstling, Sascha
Source
Subject
Language
Abstract
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.