To anyone who is interested in this thread, I believe that the three-axial spin I have been mentioning is not as efficient as a two-axial spin. I have edited the first post here accordingly. I believe the 'particle' produced may be a photon, in view both of the motion of the particle on two axes, and of the fact that photon 'energy' is measured as a succession of photons passing a point (i.e. frequency) which means that each single photon has a potential energy of h. Two-axial spin may also explain the behavior of photons passing through a filters or a beam splitter.