Anisotropy in the ternary cold fission

We describe the spontaneous ternary cold fission of 252Cf, accompanied by 4He, 10Be and 14C within a stationary scattering formalism. We show that the light cluster should be born in the neck region. It decays from the first resonant eigenstate in the Coulomb plus harmonic oscillator potential, centred in this region and eccentric with respect to the symmetry axis. This description gives a simple answer to the question why the averaged values in the energy spectra of emitted clusters are close to each other, in spite of different Coulomb barriers. We have shown that the angular distribution of the emitted light particle is strongly connected with its deformation and the equatorial distance. Experimental angular distributions can be explained by the spherical shapes of emitted clusters, except for a deformed 10Be. We also predicted some dependences of half-lives for such tri-nuclear systems upon potential parameters