Four-dimensional Langevin approach to fission with Cassini shape parameterization

We apply the Cassini shape parameterization to dynamical study of actinide fission using multi-dimensional Langevin equation. The fragment mass distributions for 236 U and 256, 258 Fm are calculated with 4D collective space is formed by adding either α 3 or 6 basic 3D {α, 1 , 4 } space. investigate role comparing results (α ) that 3D. For 236U 256Fm, where asymmetric predominant, in good agreement experimental data. On other hand, Fm, which characterized symmetric fission, effective describing compact fragments. demonstrate advantages fission.