15th International Conference on Topics in Astroparticle and Underground Physics, TAUP2017

Background Studies for the ECHo Experiment

Not scheduled

5m

Alumni Hall

Poster Neutrinos Poster Session

Speaker

Dr Stephan Scholl (Kepler Center for Astro and Particle Physics, Eberhard Karls Universitaet Tuebingen)

Description

The ECHo experiment is designed to measure the $^{163}$Ho electron capture decay spectrum up to its endpoint at $2.833\,keV$.
Such a measurement offers great potential to reach sub-$eV$ sensitivity on the absolute electron neutrino mass $m_{\nu_{e}}$.
A crucial aspect in this effort is the thorough understanding of the low energy background to experiment below $3\,keV$ and its reduction.
Monte Carlo simulations in the GEANT4 framework have been conducted to investigate the impact on the sensitivity from radioactive contaminants in the experimental setup like $^{40}$K, $^{166{\rm m}}$Ho and $^{210}$Pb and muon induced cosmogenic background. In this poster, we present the results of our simulations with respect to acceptable contamination levels.