How secret interactions can reconcile sterile neutrinos with cosmology
  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 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.
