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T: Fachverband Teilchenphysik

T 9: Dunkle Materie 1

T 9.1: Vortrag

Montag, 24. März 2014, 11:00–11:15, P11

Statistical wavelet analysis to detect keV-neutrinos with a KATRIN-like experiment — •Marc Korzeczek — Karlsruhe Institute of Technology (KIT), Institute for Nuclear Physics (IKP)

One possibility to look for Dark Matter is the search for sterile keV-neutrino signatures in the tritium beta decay spectrum. Such a spectrum can be measured at the KArlsruhe TRItium Neutrino experiment (KATRIN), whose primary goal is the determination of the effective mass of the electron antineutrino.

With the help of a modified KATRIN experiment and the Discrete Wavelet Transformation it would be possible to detect and quantify the kink-like signature, left by a keV-neutrino in the electron energy spectrum of tritium beta decay.

In this talk the analysis method will be presented and statistical as well as systematical influences will be discussed. It will be shown that even large systematical effects barely affect the sensitivity.

This work was supported by the BMBF under grant no. 05A11VK3 and by the Helmholtz Association.