Abstract

In the present work, the consideration of a dynamic charge to describe the non-Coulomb potential of the residual target for ionisation in bare ion–multielectron atom collisions is studied. This is based on the well-known Belkić’s prescription. It is shown that using an emission-angle-dependent charge in the final residual target continuum state improves the doubly differential cross sections for backward emission angles. It appears as an excellent choice to avoid large time-consuming calculations, associated with the use of numerical continuum functions. Improving the physical description of the ionisation reaction whilst keeping calculation times as low as possible is necessary for multiple applications that require large cross sections databases.

Graphic abstract

中文翻译：

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CDW-EIS模型内目标连续体中用于离子-原子碰撞中电离的动态有效电荷：角度依赖性

摘要

在目前的工作中，研究了考虑动态电荷来描述在裸离子与多电子原子碰撞中电离的剩余靶标的非库仑势。这是基于著名的贝尔基奇的处方。结果表明，在最终的剩余目标连续态下使用与发射角相关的电荷可以改善后向发射角的双微分截面。避免使用与数字连续函数相关的大型费时的计算似乎是一个不错的选择。对于需要大横截面数据库的多种应用，在保持尽可能短的计算时间的同时，改善电离反应的物理描述是必要的。

图形摘要