组态相互作用和Breit相互作用对类氖离子2p-3s碰撞激发特性的影响

基于全相对论扭曲波(RDW)电子碰撞激发计算程序REIE06,系统计算了类氖Fe~(16+)、Xe~(44+)和U~(82+)离子基态1s~22s~22p~(61)S_0到激发态1s~22s~22p~53s精细结构能级的碰撞强度,详细研究了组态相互作用和Breit相互作用对碰撞强度的影响,总结了一些有意义的结论 .在目前计算中,由于细致考虑了组态相互作用和Breit相互作用,其部分结果与已有的理论结果进行比较,对实验值的相对误差较小.

Theoretical study on the effects of Breit interaction and electron correlation on the electron impact excitations of Ne-like Fe16+ , Xe44+ and U82+ ions

The electron impact excitation (EIE) collision strengths of Ne-like Fe16+, Xe44+ and U82+ ions form the ground state 1s22s22p6 1S0 to all of excited states 1s22s22p53s are calculated systematically by using the fully relativistic distorted-wave program REIE06. Based on these calculations, the influence of the electron correlation and the Breit interaction on the EIE collision strengths are discussed systematically. The EIE collision strengths versus different energies of incident electron are studied, and some important conclusions are summarized. Because of the configuration interaction and Breit interaction are considered in detail, the part of present results are compared with the existing theoretical results, and the relative error of the experimental values is relatively small.