Last CPT-Invariant Hope for LSND Neutrino Oscillations

Abstract

It is shown that the 99% confidence limits from the analyses of the data of cosmological and neutrino experiments imply a small marginally allowed region in the space of the neutrino oscillation parameters of 3+1 four-neutrino mixing schemes. This region can be confirmed or falsified by experiments in the near future.

Comments: 6 pages, added predictions for neutrinoless double beta decay and tritium experiments