论文标题
在经典 - 区域性时间依赖性平均场理论中的多电荷离子 - 水分子碰撞
Multi-charged ion-water molecule collisions in a classical-trajectory time-dependent mean-field theory
论文作者
论文摘要
最近提出的一个经典的经典动力学筛选模型扩展了离子 - 水分子碰撞过程中多电离和捕获的描述，以在多中心目标电位和弹丸离子上纳入动力学筛选。与He $^{2 +} $ + h $ _2 $ o的可用实验数据进行比较，在中型能量（10-150 keV/u）和li $^{3 +} $ +} $ + h $ _2 $ o处的高能（100-850 kev/u）表现出两种筛选机制的重要性。解决了如何处理将捕获通量重新分配到允许捕获渠道中的问题。该模型还提供了有关高电荷弹丸离子（C $^{6+} $，O $^{8+} $，Si $^{13+} $）数据的见解。
A recently proposed classical-trajectory dynamical screening model for the description of multiple ionization and capture during ion-water molecule collisions is extended to incorporate dynamical screening on both the multi-center target potential and the projectile ion. Comparison with available experimental data for He$^{2+}$ + H$_2$O collisions at intermediate energies (10-150 keV/u) and Li$^{3+}$ + H$_2$O at higher energies (100-850 keV/u) demonstrates the importance of both screening mechanisms. The question of how to deal with the repartitioning of the capture flux into allowed capture channels is addressed. The model also provides insights for data on highly-charged projectile ions (C$^{6+}$, O$^{8+}$, Si$^{13+}$) in the MeV/u range where the question of saturation effects in net ionization was raised in the literature.
