CⅡ离子1s内壳层激发态的结构和衰变特性的理论研究  

Theoretical investigation on level structure of 1s inner-shell excited state and the related decay property of C Ⅱ ion

作　　者：师应龙[1] 董晨钟[1,2] 

机构地区：[1]西北师范大学物理与电子工程学院,兰州730070 [2]兰州重离子加速器国家实验室原子核理论研究中心,兰州730000

出　　处：《物理学报》2009年第4期2350-2357,共8页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10434100,10774122,10876028);高等学校博士学科点专项科研基金(批准号:20070736001);兰州重离子加速器国家实验室原子核理论中心基金;西北师范大学科技创新工程(批准号:NWNU-KJCXGC-03-21)资助的课题~~

摘　　要：在相对论多组态Dirac-Fock理论方法基础上,通过系统考虑电子关联效应、弛豫效应以及相对论高阶修正,详细研究了CⅡ离子1s-2p光激发形成的内壳层电子激发态(1s2s22p2和1s2s2p3)、辐射和Auger末态的能级结构以及各种可能的衰变过程.计算了CⅡ离子1s内壳层光激发能量、辐射和Auger衰变率及其线宽,进一步由不确定关系推出了这些激发态的能级寿命,并与最新的实验结果和已有的理论结果进行了比较.Based on the multi-configuration Dirac-Fock method,the level structures and decay processes of the inner-shell excited states（1s2s22p^2 and 1s2s2p^3）created by 1s-2p photoexcitation of C Ⅱ ion have been studied systematically,which the correlation and relaxation effects,relativistic radiative corrections have been considered in the calculations.Auger and radiative transition energy,decay rate and linewidth for each inner-shell excited states of C Ⅱ ion has been calculated.Correspondingly,lifetimes of those autoionization states can be obtained via the Heisenberg uncertainty principle.A comparison of the present calculations with the latest experimental and available theoretical results is also presented.

关 键 词：内壳层激发态 线宽 寿命 多组态DIRAC-FOCK方法 

分 类 号：O562.4[理学—原子与分子物理]