Neutrino masses from R-parity non-conserving loops
  We present new formulae for the neutrino masses generated by R-parity violating interactions within minimal supersymmetric standard model. The importance of inclusion of CP phases in the neutrino mass matrix is discussed in detail. 
Marek G\'o\'zd\'z, Wies{\l}aw A. Kami\'nski, Fedor Simkovic
hep-ph