Neutrinos in Supersymmetry without R-Parity
  We show how Bilinear R-Parity violation within the Minimal Supersymmetric Standard Model can solve the atmospheric and solar neutrino problems by generating naturally small and hierarchical neutrino masses, together with neutrino mixing angles consistent with experiments. The relation between collider and neutrino physics is emphasized. 
M. Hirsch, M.A. Diaz, W. Porod, J.C. Romao, J.W.F. Valle