Neutrinos on Earth and in the Heavens
arXiv:hep-ph/9808293 · doi:10.1103/PhysRevD.61.097301
Abstract
Recent data lead us to a simple and intriguing form of the neutrino mass matrix. In particular, we find solar neutrino oscillations to be nearly maximal (and rule out the small-angle MSW explanation of solar neutrino observations) if relic neutrinos comprise at least one~percent of the critical mass density of the universe.
7 pages, harvmac, minor changes and new references in revised version