Neutrinoless double beta decay mediated by the neutrino magnetic moment
  We present a new channel of the neutrinoless double beta decay. In this scenario neutrinos not only oscillate inside the nucleus but also interact with an external non-uniform magnetic field. We assume that the field rotates about the direction of motion of the neutrino and show, that for a certain speed of rotation the half-life of the $0\nu2\beta$ decay may be significantly lowered. 
Marek G\'o\'zd\'z and Wies{\l}aw A. Kami\'nski
hep-ph