Abstract
Fusion reactions near the barrier energy are studied in this proceedings with the Hartree-Fock (HF) method, on systems involving 40–54 Ca+116,132 Sn. Both static and time-dependent (TDHF) versions of the method are used to probe what structure effects play a role in the fusion barrier energy. In static HF calculations for fusion, ground state properties of the nuclei influence the barrier energy. When dynamics are added in with TDHF, some effects from static properties (for example, the neutron skin) disappear. To understand the role of vibrations in dynamic reactions, TDHF is used in conjunction with the coupled-channels approach. Discussion on the effects of transfer is also presented.
Highlights
Properties of nuclides near the neutron dripline are often not well known
Experiments have shown that dynamic effects such as low-lying vibrational couplings [3,4,5] and transfer reactions [6,7,8,9,10] strongly affect fusion reactions
We have used a microscopic approach to probe fusion reactions involving neutron-rich nuclei
Summary
Properties of nuclides near the neutron dripline are often not well known. how neutron-rich nuclides interact in reactions remains an open question as it is often unfeasible to study this experimentally. Experiments have shown that dynamic effects such as low-lying vibrational couplings [3,4,5] and transfer reactions [6,7,8,9,10] strongly affect fusion reactions. The conventional choice of method for studying heavy-ion fusion was the coupled-channels (CC) approach, which needs input parameters of the structure of the nuclei in the reaction. When these parameters are not known or experimental data is unavailable, especially for very neutron rich nuclei, a microscopic approach is more appealing. The method of including microscopic inputs to coupled-channels (CC) analysis [28, 53] is a way to isolate certain dynamic effects, and is used to unravel the TDHF dynamics and the influence of these on the fusion reactions in this proceedings
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