Majorana neutrino magnetic moments in the gauge mediated supersymmetry   breaking MSSM model
  Supersymmetric models with broken R-parity provide mechanisms that allow to generate Majorana neutrino masses and magnetic moments through virtual particle-sparticle loops. This constitutes an attractive alternative to the see-saw mechanism. In this paper we present a detailed calculation of the transition magnetic moments of a Majorana neutrino in gauge mediated supersymmetry breaking MSSM without R-parity. We base our analysis on the renormalization group evolution of the MSSM parameters, which are unified at the GUT scale. 
Marek G\'o\'zd\'z, Wies{\l}aw A. Kami\'nski
hep-ph