VEP oscillation solutions to the solar neutrino problem

Abstract

We study the solar neutrino problem within the framework of a parametrized post-Newtonian formulation for the gravitational interaction of the neutrinos, which incorporates a violation to the equivalence principle (VEP). Using the current data on the rates and the energy spectrum we find two possible oscillation solutions, both for a large mixing angle. One of them involves the MSW effect in matter and the other corresponds to vacuum oscillations. An interesting characteristic of this mechanism is that it predicts a semi-annual variation of the neutrino flux. Our analysis provides new constraints for some VEP parameters.

revtex, 18 pages, 11 figures

References in corpus (2)

• Measurement of the solar neutrino capture rate with gallium metal
• The Solar Neutrino Problem and Gravitationally Induced Long-wavelength Neutrino Oscillation

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• Linking solar bosonic dark matter halos and active neutrinos
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