Competition between 296Lv decay and fission as function of the excitation energy

摘要

The deformation energy for the296 Lv superheavy element is calcu-lated in the framework of the macroscopic-microscopic model based on the the Woods-Saxon two-center shell model. The inertia is obtained within the cranking approach.The superasymmetric fission and the near symmetric fission of296 Lv nucleus are in-vestigated. The fission paths are obtained by minimizing the action integral constrainedby a final configuration pertaining to the fission or to the ? decay process. In both cases,the potential barrier exhibits a two-humped structure characterized by a deep secondwell. The ratio between ?-decay and cold fission decay probabilities are reported fordifferent excitation energies of the parent nucleus.