Robust signatures of solar neutrino oscillation solutions

With the goal of identifying signatures that select specific neutrinooscillation parameters, we test the robustness of global oscillation solutionsthat fit all the available solar and reactor experimental data. We use threeglobal analysis strategies previously applied by different authors and alsodetermine the sensitivity of the oscillation solutions to the critical nuclearfusion cross section, S_{17}(0), for the production of 8B. The favoredsolutions are LMA, LOW, and VAC in order of g.o.f. The neutral current tocharged current ratio for SNO is predicted to be 3.5 +- 0.6 (1 sigma), which isseparated from the no-oscillation value of 1.0 by much more than the expectedexperimental error. The predicted range of the day-night difference in chargedcurrent rates is (8.2 +- 5.2)% and is strongly correlated with the day-nighteffect for neutrino-electron scattering. A measurement by SNO of either a NC toCC ratio > 3.3 or a day-night difference > 10%, would favor a small region ofthe currently allowed LMA neutrino parameter space. The global oscillationsolutions predict a 7Be neutrino-electron scattering rate in BOREXINO andKamLAND in the range 0.66 +- 0.04 of the BP00 standard solar model rate, aprediction which can be used to test both the solar model and the neutrinooscillation theory. Only the LOW solution predicts a large day-night effect(<42%) in BOREXINO and KamLAND. For the KamLAND reactor experiment, the LMAsolution predicts 0.44 of the standard model rate; we evaluate 1 sigma and 3sigma uncertainties and the first and second moments of the energy spectrum.Comment: Included predictions for KamLAND reactor experiment and updated to include 1496 days of Super-Kamiokande observation