SUPERSYMMETRIC RADIATIVE-CORRECTIONS TO NEUTRINO INDEXES OF REFRACTION

We compute the one-loop effects on the neutrino propagation through ma tter induced by virtual supersymmetric particles. We show that, in the minimal version of the supersymmetric standard model, a non-degenerac y between sleptons of the second and third generations can have sizeab le effects on the nu(mu)nu(tau), oscillations in matter. In particular , we discuss how this could affect the detection of the energetic neut rino fluxes arising from annihilation of supersymmetric dark matter in the center of the sun.