摘要: Based on the unified Hauser–Feshbach and exciton model, which can describe the particle emission processes between discrete energy levels with energy, angular momentum, and parity conservations, a statistical theory of light nucleus reaction (STLN) is developed to calculate the double-differential cross-sections of the outgoing neutron and light charged particles for the proton-induced 6Li reaction. A significant difference is observed between the p + 6Li and p + 7Li reactions owing to the discrepancies in the energy-level structures of the targets. The reaction channels, including sequential and simultaneous emission processes, are analyzed in detail. Taking the double-differential cross-sections of the outgoing proton as an example, the influence of contaminations (such as 1H, 7Li, 12C, and 16O) on the target is identified in terms of the kinetic energy of the first emitted particles. The optical potential parameters of the proton are obtained by fitting the elastic scattering differential cross-sections. The calculated total double-differential cross-sections of the outgoing proton and deuteron at Ep = 14 MeV agree well with the experimental data for different outgoing angles. Simultaneously, the mixed double differential cross-sections of 3He and α are in good agreement with the measurements. The agreement between the measured data and calculated results indicates that the two-body and three-body breakup reactions need to be considered, and the pre-equilibrium reaction mechanism dominates the reaction processes. Based on the STLN model, a PLUNF code for the p + 6Li reaction is developed to obtain an ENDF-6-formatted file of the double-differential cross-sections of the nucleon and light composite charged particles.
-
来自:
孙小军
-
期刊:
Nuclear Science and Techniques
-
分类:
物理学
>>
核物理学
-
投稿状态:
已被期刊接收
-
引用:
ChinaXiv:202403.00106
(或此版本
ChinaXiv:202403.00106V1)
DOI:10.12074/202403.00106V1
CSTR:32003.36.ChinaXiv.202403.00106.V1
- 推荐引用方式:
Fang-Lei Zou,Xiao-Jun Sun, Jing-Shang Zhang,Hai-Rui Guo,Yin-Lu Han,Rui-Rui Xu,Xi Tao,Ji-Min Wang,Xiao-Dong Sun,Yuan Tian,Tao Ye,Yong-Li Xu, Chun-Tian Liang.(2024).Theoretical analysis of double-differential cross-sections of neutron, proton, deuteron, 3He, and α for the p+6Li reaction.Nuclear Science and Techniques.doi:10.12074/202403.00106V1
(点此复制)