Analysis of nuclear fission properties with the Langevin approach in Fourier shape parametrization

• DOI: 10.1103/physrevc.103.044601
• Publication Date: 2021-04-01T14:08:32Z
• Authors: Li-Le Liu; Yong-Jing Chen; Xi-Zhen Wu; Zhu-Xia Li; Zhi-Gang Ge; Krzysztof Pomorski
• Keywords: Nuclear fission; Mass distribution; Parametrization (atmospheric modeling); Semi-empirical mass formula

The Langevin approach is extendedly applied to study the dynamical process of nuclear fission within Fourier shape parametrization, where potential energy calculated with macroscopic-microscopic model based on Lublin-Strasbourg drop and Yukawa-folded potential. fragment mass distribution total kinetic as a function heavy in 14 MeV $n+^{235}\mathrm{U}$ are compared evaluated data from ENDF/B-VIII.0 experimental data. It found that Wall for friction tensor available describe both (TKE) present model. In addition, distributions TKE $n+^{233,236,238}\mathrm{U}$ $^{239}\mathrm{Pu}$ well described. Furthermore, behavior correlation distance between centers two fragments at scission point be consistent shortest ${R}_{12}$ locates around ${A}_{h}=135$ which due influence shell effects.