The multi-nucleon transfer process is a promising approach for producing neutron-rich heavy nuclei. Its favorable projectile-target combinations play a key role in experiments. As an important theoretical approach to investigate the multi-nucleon transfer process, the dinuclear system (DNS) model is improved and shown in detail. Based on the degree of freedom of the deformation of the improved DNS model, a method of calculating the excitation energies of the primary fragments is proposed, and a remarkable improvement in describing the experimental data is noted. To produce trans-uranium nuclei, the collisions of 48 Ca, 136 Xe, and 238 U projectiles with the 238 U target are investigated within the improved DNS model. Based on the potential energy surface, the influence of the projectiles on the probabilities of transferring neutrons and protons from the projectiles to the target are studied. One behavior found is that the transfer probabil...

中文翻译：

---

在改进的双核系统模型中，在转移反应中产生反铀核的弹丸的选择

多核子转移过程是产生富中子重核的有前途的方法。其有利的射弹目标组合在实验中起关键作用。作为研究多核子转移过程的重要理论方法，对双核系统（DNS）模型进行了改进并详细显示。基于改进后的DNS模型的变形自由度，提出了一种计算主片段激发能的方法，并在描述实验数据方面取得了显着的进步。为了产生跨铀核，在改进的DNS模型中研究了48 Ca，136 Xe和238 U弹丸与238 U目标的碰撞。根据势能面 研究了弹丸对中子和质子从弹丸转移到目标的概率的影响。发现的一种行为是转移概率...