Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-10-19
Phys.Rev. D61 (2000) 105004
Physics
High Energy Physics
High Energy Physics - Phenomenology
revtex, 18 pages, 11 figures
Scientific paper
10.1103/PhysRevD.61.105004
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.
Casini Horacio
D'Olivo Juan Carlos
Montemayor R.
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