Effects of nuclear deformation and neutron transfer in capture process, and origin of fusion hindrance at deep sub-barrier energies

摘要

The roles of nuclear deformation and neutron transfer in sub-barrier captureprocess are studied within the quantum diffusion approach. The change of thedeformations of colliding nuclei with neutron exchange can crucially influencethe sub-barrier fusion. The comparison of the calculated capture cross sectionand the measured fusion cross section in various reactions at extreme sub-barrier energies gives us information about the fusion and quasifission.