非谐振区e-He^+散射的位相移动

e-He+ SCATTERING PHASE SHIFTS IN THE NONRESONANT REGION

使用组态相互作用理论详细分析He的双重激发自电离态,以及第一电离阈植附近非谐振区e-He^+散射的位相移动,这种位相移动反映了非谐振区内电子——电子短程相互作用.获得了单重态和三重态的S,P,D分波的高精度位相移动,与现有理论计算结果相比,符合得很好.

The double excited autoionization states of the He atom and the e-He+ scattering phase shifts in the nonresonant region near the first ionization threshold are examined in detail, using a simple configuration-interaction approach. The phase shifts reflect the short-range electron-electron correlations. The S, P and D partial wave phase shifts of night accuracy are obtained for both the singlet and the triplet spin states. The excellent agreement between the present calculation and existing theoretical results.