极化电子对极化原子激发截面的一般表达式
A general expression for the excitation cross section of polarized atoms by polarized electrons
摘要：
本文用原子极化理论的方法导出了极化电子对极化原子的激发截面的一般表达式。得到了描述极化和非极化原子激发态角分布和排列的一般表达式以及极化原子总激发截面的磁二色性的特殊情况。在扭曲波交换近似下，计算了Na的2 p $^5$ 3s $^2$ $^2$ P $_{3/2}$和K的3 p $^5$ 4s $^2$ $^2$ P $_{3/2}$的自电离激发截面和取向参数.
英文摘要：
The general expression for excitation cross section of polarized atoms by polarized electrons is derived by using the methods of the theory of an atom adapted for polarization. The special cases of the general expression for the description of the angular distribution and alignment of excited atoms in the case of polarized and non-polarized atoms as well as the magnetic dichroism of the total excitation cross section of polarized atoms are obtained. The cross sections and alignment parameters for the excitation of the autoionizing states 2p$^5$3s$^2$ $^2$P$_{3/2}$ for Na and 3p$^5$4s$^2$ $^2$P$_{3/2}$ for K are calculated in distorted wave with exchange approximation.
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