Found an of interesting paper.

Verdini et al have a preprint on explaining the MiniBoone excess, (more than predicted electron neutrinos), by a decaying Mev Range right handed neutrino. They have the decay by photons coupling to the neutrino electric dipole. I think the much faster neutrino decay by a possible axial force, would arrive at a similar fit. They predict the neutrino state to be 376MeV and disappointingly they think the FANL (I think this means this Summers Microboone results), has too short a baseline to detect the new state or the decay. Previously Denler et al fitted the MiniBoone excess with a 100eV to 1 KeV decay neutrino.