A Model Independent Approach to Future Solar Neutrino Experiments

Abstract

We discuss here what model independent information about properties of neutrinos and of the sun can be obtained from future solar neutrino experiments (SNO, Super-Kamiokande). It is shown that in the general case of transitions of solar ${\nu }_e$'s into ${\nu }_{\mu }$ and/or ${\nu }_{\tau }$ the initial ${}^8\mathrm{B}$ neutrino flux can be measured by the observation of NC events. From the CC measurements the ${\nu }_e$ survival probability can be determined as a function of neutrino energy. The general case of transitions of solar ${\nu }_e$'s into active as well as sterile neutrinos is considered. A number of relations between measurable quantities the test of which will allow to answer the question whether there are sterile neutrinos in the solar neutrino flux on the earth are derived. Transitions of solar ${\nu }_e$'s into active and sterile states due to neutrino mixing and Dirac magnetic moments or into active left-handed neutrinos and active right-handed antineutrinos due to neutrino mixing and Majorana transition magnetic moments are also considered. It is shown that future solar neutrino experiments will allow to distinguish between the cases of Dirac and Majorana magnetic moments.

28 pages, 5 figures (included). Final version to be published in Astroparticle Physics. Compressed Postscript file. If you prefer the uncompressed postscript file or a hardcopy of the paper, please write to [email protected]. DFTT 12/94

References in corpus (3)

• Implications of Gallium Solar Neutrino Data for the Resonant Spin-Flavor Precession Scenario
• Sterile Neutrinos and Future Solar Neutrino Experiments
• Towards a Model Independent Treatment of Future Solar Neutrino Data

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• Solar neutrino interactions: Using charged currents at SNO to tell neutral currents at Super-Kamiokande
• Four-Neutrino Mixing and Big-Bang Nucleosynthesis
• SNO and the neutrino magnetic moment solution of the solar neutrino problem
• Solar neutrino event spectra: Tuning SNO to equalize Super-Kamiokande
• Exact analysis of the combined data of SNO and Super-Kamiokande