How Self-Interactions can Reconcile Sterile Neutrinos with Cosmology
- 22 January 2014
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 112 (3) , 031802
Abstract
Short baseline neutrino oscillation experiments have shown hints of the existence of additional sterile neutrinos in the eV mass range. However, such neutrinos seem incompatible with cosmology because they have too large of an impact on cosmic structure formation. Here we show that new interactions in the sterile neutrino sector can prevent their production in the early Universe and reconcile short baseline oscillation experiments with cosmology.Keywords
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