Fission of the Heaviest Fermium Isotopes

摘要

Potential energy of /sup 258/Fm is calculated in multidimensional deformation space as a function of both (reflection-)symmetric and asymmetric shapes. The inclusion of the asymmetric shapes is found important as it 'opens a pass' between the two fission valleys: one corresponding to compact and the other to elongated shapes of the nucleus. Thus, it makes both valleys accessible to the fissioning nucleus. (ERA citation 13:025434)