对Xe的4d5/2和4d3/2内部外电离的二进制 (e, 2e) 光谱学调查和详细分析
Takumi Sato1, Masahiko Takahashi2, Yasuhiro Ohshima1
1Department of Chemistry, School of Science, Institute of Science Tokyo, Tokyo 152-8550, Japan.
The Journal of chemical physics
|September 15, 2025
概括
这项研究研究了 (Xe) 的 (e, 2e) 内电离. 扭曲波波恩近似 (DWBA) 模型最好地解释了实验动量概况,揭示了对相对论效应的洞察力.
科学领域:
- 原子物理 原子物理
- 量子力学就是量子力学.
- 电子光谱学电子光谱学
背景情况:
- 内部外的电离对于理解原子结构和动态至关重要.
- (e,2e) 反应提供了电子动量分布的详细探测.
- 相对论效应可以影响电子波函数和电离过程.
研究的目的:
- 为了实验性地确定Xe 4d5/2和4d3/2内部外电离的动量配置.
- 将实验数据与理论模型 (PWIA,DWIA,DWBA) 进行比较.
- 调查相对论对Xe4d电离的作用.
主要方法:
- 使用多通道电子动量谱仪进行实验测量.
- 发生电子能量为1270 eV.
- 使用平面波冲动近似 (PWIA),扭曲波冲动近似 (DWIA) 和扭曲波波恩近似 (DWBA) 的理论计算,使用相对论和非相对论的Kohn-Sham轨道.
主要成果:
- 扭曲波波恩近似 (DWBA) 模型在解释实验动量概况方面表现出优越性.
- 导弹-目标电子相互作用和扭曲波浪效应的重要性得到了证实.
- 4d5/2和4d3/2电离的分支比与非相对论预测略有偏差,表明相对论效应很小.
结论:
- 在描述 (e, 2e) 内电离时,DWBA模型非常有效.
- 对 Xe 4d 波函数的相对论效应相对较小.
- 这项研究为了解内部电化的电子分布和反应动态提供了有价值的数据.
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