Effects of velocity-dependent and spin-orbit terms of the Skyrme interaction on neutron elastic scattering observables
| Autor: | N. Hoang Tung, Chi Lam Truong, D. Quang Tam, Vinh N. T. Pham, T. V. Nhan Hao |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Physical Review C. 102 |
| ISSN: | 2469-9993 2469-9985 |
| DOI: | 10.1103/physrevc.102.034608 |
| Popis: | Elastic scattering of a series of doubly closed-shell nuclei at low energy has been described in the framework of optical potential model generated from the particle-vibration coupling approach on top of the collective excited states obtained from the random-phase approximation. We focus on the effects of the spin-orbit and velocity-dependent interaction on the angular distributions and analyzing powers by comparing these observables with experimental data. It has been found that the contribution of the two-body velocity-dependent and two-body spin-orbit terms are important to improve results for $^{16}\mathrm{O},\phantom{\rule{0.16em}{0ex}}^{40}\mathrm{Ca},\phantom{\rule{0.16em}{0ex}}^{48}\mathrm{Ca}$, and $^{208}\mathrm{Pb}$. The velocity-dependent interactions strongly reduce the absorption on the surface while the spin-orbit interactions sightly increase the absorption in the interior. |
| Databáze: | OpenAIRE |
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