THE SOLAR-NEUTRINO PROBLEM AND BOUNDS SOLAR-NEUTRINO FLUXES

We review the current status of the solar neutrino problem. A survey of the experiments and their results are given, and solar physics crucial to the understanding of these results are discussed. Semi-empirical methods are used to derive bounds on the fluxes of the three most important components (pp, Be-7 and B-8) of the solar neutrino spectrum. The B-8 neutrinos are directly measured to be about half of the theoretical prediction. Relative to their theoretical predictions, we find the Be-7 neutrinos to be highly suppressed and the pp neutrinos not suppressed. We are also able to derive a lower bound on the pp flux.