Detecting sterile neutrinos with KATRIN like experiments

A sterile neutrino with mass in the eV range, mixing with ν-bar {sub e}, 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 a...

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Bibliographic Details
Published in:Journal of cosmology and astroparticle physics 2011-02, Vol.2011 (2), p.011-11
Main Authors: Riis, Anna Sejersen, Hannestad, Steen
Format: Article
Language:English
Subjects:
ASTROPHYSICS
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
BETA DECAY
COSMOLOGICAL MODELS
COSMOLOGY
ELECTRON ANTINEUTRINOS
EV RANGE
NEUTRINO DETECTION
NEUTRINO OSCILLATION
REST MASS
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Summary:A sterile neutrino with mass in the eV range, mixing with ν-bar {sub e}, 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.
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2011/02/011