Detecting sterile neutrinos with KATRIN like experiments

Abstract

A sterile neutrino with mass in the eV range, mixing with the electron antineutrino, is allowed and possibly even preferred by cosmology and oscillation experiments. If such eV-mass neutrinos exist they provide a much better target for direct detection in beta decay experiments than the active neutrinos which are expected to have sub-eV masses. Their relatively high mass would allow for an easy separation from the primary decay signal in experiments such as KATRIN.

23 pages, 7 figures. References & Figures updated. Text reviewed and revised. Accepted for publication JCAP

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• Current Direct Neutrino Mass Experiments
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