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  

Theoretical study on the effects of Breit interaction and electron correlation on the electron impact excitations of Ne-like Fe^(16+),Xe^(44+) and U^(82+) ions

作　　者：杨宁选[1] 廖辉[1] 杨坤[1] 范婷[1] 曹海宾[1] 

机构地区：[1]石河子大学理学院物理系生态物理重点实验室,石河子832000

出　　处：《原子与分子物理学报》2017年第1期87-94,共8页Journal of Atomic and Molecular Physics

基　　金：石河子大学优秀青年科技人才培育计划项目(2013ZRKXYQ09);石河子大学优秀中青年骨干教师培养支持计划(3152LXY04036)

摘　　要：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.The electron impact excitation （EIE） collision strengths of Ne- like Fe^16＋ , Xe^44＋ and U^82＋ ions form the ground state 1s^22s^22p^61S0 to all of excited states 1s^22s^22p^53s 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.

关 键 词：电子碰撞激发 组态相互作用 Breit相互作用 

分 类 号：O562.5[理学—原子与分子物理]