Abstract

Abstract The scission point model with the dynamical effects in the assumption of the Smoluchowski limit of strong coupling to govern the final mass distribution that are in remarkable agreement with experimental data. This paper primarily investigates the sensitivity of mass distribution and the mean total kinetic energy to various model components, including the choice of the scission point condition, the dissipation tensor and the diffuseness width. The results of neutron-induced 235, 238U, 237Np and 239Pu fission are overall consistent with the scission point statistical model. In the high-energy region, the calculation results of the dynamical method are in better agreement with the experimental data. This conclusion justifies the validity of using the strong coupling approach for neutron-induced actinides fission.

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2025
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Dong-Ying Huo, Zheng Wei, Kang Wu et al. (2025). Fission fragment mass distributions based on random walk at scission point in the Smoluchowski limit simulation. Chinese Physics C . https://doi.org/10.1088/1674-1137/ae2ab1

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DOI
10.1088/1674-1137/ae2ab1