  We investigate the possibility that the antiproton-to-proton flux ratio which
is measured in cosmic rays may be generated by neutralino-neutralino
annihilation in the galactic halo. We study the most general compositions for
the relic neutralinos. We compare our results with the present experimental
sensitivity and find that the theoretical predictions are at the level of the
current experimental limits for some regions in the parameter space of the
model.We expect that the future measurements of the pbar/p will provide very
useful information, complementary to the ones obtainable with other
experimental means.
