论文标题

反应36S + 238U和64NI + 238U的描述在两个阶段融合模型中

Description of the reactions 36S + 238U and 64Ni + 238U within the two-stage fusion-fission model

论文作者

Litnevsky, V. L., Ivanyuk, F. A., Kosenko, G. I., Chiba, S.

论文摘要

我们描述了提议的早期两个阶段动力学模型中超重核的捕获,融合,裂变和蒸发残基的形成横截面。在模型的第一阶段描述了弹丸核与靶核的接近。在第二阶段,考虑了弹丸和靶核接触后形成的系统的演变。 Langevin方程描述了系统在两个阶段的演变。这些方程的传输系数是在微观线性响应理论中计算的。碰撞离子的相互取向,进入入口通道中的库仑屏障的隧道以及在计算两个阶段的势能中的壳效应。将获得的结果与可用的实验数据和其他理论预测进行了比较。

We describe the capture, fusion, fission and evaporation residue formation cross sections of superheavy nuclei within the proposed earlier two stages dynamical model. The approaching of the projectile nucleus to the target nucleus is described in the first stage of the model. On the second stage, the evolution of the system formed after the touching of the projectile and target nuclei is considered. The evolution of the system on both stages is described by Langevin equations. The transport coefficients of these equations are calculated within the microscopic linear response theory. The mutual orientation of the colliding ions, the tunneling through the Coulomb barrier in the entrance channel and the shell effects in the potential energy on both stages of the calculations are taking into account. The obtained results are compared with the available experimental data and other theoretical predictions.

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