Abstract
The self-consistent mean-field Hartree–Fock (HF) theory, both static and time-dependent (TDHF) versions, is used to study static and dynamic properties of fusion reactions between even 40–54 Ca isotopes and 116 Sn. The bare nucleus-nucleus potential, calculated with the frozen HF approach, is affected by the groundstate density of the nuclei. However, once dynamical effects are included, as in TDHF, the static effects on the barrier are essentially washed out. Dynamic properties of the nuclei, including low-lying vibrational modes, are calculated with TDHF and selectively used in coupled-channels calculations to identify which modes have the most effect on the TDHF fusion threshold. Vibrations cannot fully explain the difference between the static HF and TDHF fusion barriers trend so other dynamical effects such as transfer are considered.
Highlights
Nuclear structure plays a major role in nuclear fusion reactions
To see what this one dynamical effect has on the fusion barriers of the systems, the CC approach [52], using the CCFULL code [53] is used since dynamical effects can be added in one at a time
In the static picture of fusion, the HF ground state properties such as rms neutron radius of the calcium isotopes have an effect on the fusion barrier
Summary
Nuclear structure plays a major role in nuclear fusion reactions. Effects of internal nuclear structure on heavy-ion fusion can be seen by studying features of experimental fusion barrier distributions [1, 2]. 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 Other dynamic effects, such as breakup [11,12,13,14] and rotational couplings [4], have been seen to play a role. The coupled-channels approach is applied to study reactions and compare fusion cross sections with experimental data, for example, but it requires input parameters of the structure of the nuclei in the reaction. When these parameters are not known or where experimental data is not available, a more microscopic theoretical method is valuable. The method of including microscopic inputs to coupled-channels (CC)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
