ARE THERE STERILE NEUTRINOS IN THE FLUX OF SOLAR NEUTRINOS ON THE EARTH?

Abstract

It is shown that the future SNO and Super-Kamiokande experiments, in which high energy ${}^8\mathrm{B}$ neutrinos will be detected through the observation of CC, NC and $\nu$--$e$ elastic scattering processes, could allow to reveal in a model independent way the presence of sterile neutrinos in the flux of solar neutrinos on the earth. Lower bounds for different averaged values of the probability of transition of solar ${\nu }_e$'s into sterile states and for the total flux of ${}^8\mathrm{B}$ neutrinos are derived in terms of measurable quantities. The possibilities to reveal the presence of ${\nu }_{\mu }$ and/or ${\nu }_{\tau }$ in the solar neutrino flux on the earth are also considered and the case of transitions of solar ${\nu }_e$'s only into sterile states is discussed. Some numerical results for a simple model with ${\nu }_e$--${\nu }_s$ mixing are given.

Revised reference list. Revtex file, 15 pages + 4 figures (included). The postscript file of text and figures is available at ftp://toxd01.to.infn.it/pub/giunti/1995/dftt-12-95/dftt-12-95.ps.Z

References in corpus (5)

• Neutrino-Nucleus Reactions
• Implication of Combined Solar Neutrino Observation and their Theoretical Uncertainties
• Long-Wavelength Oscillations and the Gallex Solar Neutrino Signal
• Sterile Neutrinos and Future Solar Neutrino Experiments
• Towards a Model Independent Treatment of Future Solar Neutrino Data

Cited by in corpus (15)

• Phenomenology of Neutrino Oscillations
• Effects of neutrino mixing on high-energy cosmic neutrino flux
• Neutrino Mass Spectrum with ${\nu }_{\mu }$ $\to$ ${\nu }_s$ Oscillations of Atmospheric Neutrinos
• Unknowns after the SNO Charged-Current Measurement
• Neutrino Mixing, CP/T Violation and Textures in Four-Neutrino Models
• How neutrino oscillations can induce an effective neutrino number of less than 3 during Big Bang Nucleosynthesis
• SNO: Predictions for Ten Measurable Quantities
• Short-baseline neutrino oscillations and neutrinoless double-beta decay in the framework of three neutrino mixing and a mass hierarchy
• Four-Neutrino Mixing and Big-Bang Nucleosynthesis
• On the MSW ${\nu }_e\to {\nu }_s$ transition solution of the solar neutrino problem
• Limits on Active-Sterile Neutrino Mixing and the Primordial Deuterium Abundance
• A Study of the Day - Night Effect for the \SK Detector: III. The Case of Transitions into Sterile Neutrino
• Three-generation neutrino mixing and LSND dark matter neutrinos
• Possible tests for sterile neutrinos
• Four-neutrino MS^2 mixing