TOWARDS A MODEL-INDEPENDENT TREATMENT OF FUTURE SOLAR-NEUTRINO DATA

Possibilities of a model independent treatment of the data from future real-time solar neutrino experiments (SNO, Super-Kamiokande and other s) are discussed. It is shown that in the general case of transitions of the initial solar nu(e)'s into nu(mu) and/or nu(tau) the total flux of initial B-8 neutrinos and the nu(e) survival probability can be de termined directly from the experimental data. Relations between observ able quantities are derived, which, if confronted with the experimenta l data, would allow to reveal the presence of sterile neutrinos in the solar neutrino flux on earth. Neutrino transitions due to spin and re sonant spin-flavour precession in the magnetic field of the sun are sh ortly discussed.