Theoretical study on decay of the 4d core-excited states of Cs Ⅲ

作     者：丁晓彬 董晨钟 Stephan Fritzschec 

作者机构：College of Physics and Electronic Engineering Northwest Normal University Center of Theoretical Nuclear Physics National Laboratory of Heavy-Ion Accelerator of Lanzhou Department of Physics University of Kassel Heinrich-Plett-Strαβe 40 D-34132 Kassel Germany 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2008年第17卷第6期

页      面：2033-2039页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos 10434100 and 10774122) the Core-University Program between Japanese Society of Promotion of Science and Chinese Academy of Sciences the Foundation of Center of theoretical Nuclear Physics of National Laboratory of Heavy Ion Accelerator of Lanzhou,and the Foundation of Northwest Normal University (Grant No NWNU-KJCXGC-03-21) 

主　　题：correlation effects linewidth Auger decay 

摘      要：In a recent XUV photoabsorption spectrum of Cs Ⅲ ions by Cummings and O＇Sullivan [2001 J. Phys. B 34 199], rather large linewidths were found for the 4d^95s^25p^6 - 4d^105s^25p^5 transition which are quite in disagreement with corresponding quasi-relativistic multiconfiguration Hartree Fock （MCHF） calculation. In the present work, a detailed multiconfiguration Dirac-Fock study has been carried out to explore this discrepancy. Owing to the detailed consideration of electron correlation effects, some ‘forbidden＇ Auger decay channels, such as 4d^105s^25p^35d and 4d^105s^05p^6, would become ‘open＇. As a result, remarkable improvement of the linewidths has been obtained in our calculation. Furthermore, the theoretical Auger spectrum of the 4d^ 95s^25p^6 core-excited states of Cs Ⅲ ions is Riven in the present work.