锂原子激发态光电离的R矩阵计算

运用R矩阵理论方法, 分别在单通道近似和三态密耦近 似下计算了Li原子激发态 (1s²2p)²P的不同过程、 不同分波的光 电离截面及分波 的光电离截面随有效量子数的变化规律. 计算结果表明, 在三态密耦近似下, 由于大量的自 电离态与连续态的相互作用, 光电离过程中存在非常丰富的 Rydberg 系列共振结构.

Calculations of photoionzation of excited state (1s22p)2P of Li

The present paper covers the photoionization sections of the different processes and different partial waves of the excited state(1s~22p)~2P of Li calculated by means of R-matrix method in the single channel approximation and the three-state close coupling approximation, and the regularity of the photoionization sections of the partial waves with the effective quantum number. The results show that in the three-state close coupling approximation, there exists a wealth of Rydberg series of resonance structures in the procedure of pho-toionization due to the interaction between the autoionization state and the continuation states.