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首页> 外文期刊>Physical review, C >Description of the mass-asymmetric fission of the Pt isotopes, obtained in the reaction Ar-36 + Nd-142 within the two-stage fusion-fission model
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Description of the mass-asymmetric fission of the Pt isotopes, obtained in the reaction Ar-36 + Nd-142 within the two-stage fusion-fission model

机译：在两阶段融合模型中，在反应Ar-36 + Nd-142中得到的Pt同位素的质量不对称裂变

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摘要

The two-stage dynamical stochastic model developed earlier for the description of fusion-fission reactions is applied to the calculation of mass and energy distributions of fission fragments of platinum isotopes in the reaction Ar-36 + Nd-142 -> Pt178-x + xn. The first stage of this model is the calculation of the approaching of the projectile nucleus to the target nucleus. In 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 in both stages is described by three-dimensional Langevin equations for the shape parameters of the system. The mutual orientation of the colliding ions and tunneling through the Coulomb barrier in the entrance channel are also taken into account. The potential energy of the system is calculated within the macroscopic-microscopic approach. The calculated mass-energy distributions of fission fragments are compared with the available experimental data. The impact of shell effects, rotation of the system, and neutron evaporation on the calculated results is discussed.
机译：早期开发的用于描述融合反应的两级动力随机模型应用于反应Ar-36 + Nd-142 - > Pt178-x + xn的铂同位素的裂变片段质量和能量分布的计算。该模型的第一阶段是计算射弹细胞核对靶核的接近。在第二阶段，考虑了触摸射弹和靶核之后形成的系统的演变。两个阶段中系统的演变由系统的形状参数的三维Langevin方程描述。还考虑了碰撞离子和隧道穿过入口通道中的库仑屏障的相互取向。系统的潜在能量在宏观 - 微观方法中计算。将计算出的裂变片段的质量能量分布与可用的实验数据进行比较。讨论了壳体效应，旋转和中子蒸发对计算结果的影响。

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