Importance of Relativistic Effects for Intermediate-Z Elements： Photoionization Process of Excited Na

作     者：韩小英 王晓路 VOKY Lan FEAUTRIER Nicole 李家明 

作者机构：Department of Physics Shanghai Key Laboratory for Laser Fabrication and Material Science Shanghai Jiao Tong University Shanghai 200030 Key Laboratory of Atomic and Molecular Nanosciences of Education Ministry Department of Physics Tsinghua University Beijing 100084 LERMA UMR 8112 du CNRS Observatoire de Paris 92915 Meudon Cedex France 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2007年第24卷第4期

页      面：909-912页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Supported by This work is supported by the Ministry of Science and Technology and Ministry of Education of China  the Key Project of the Ministry of Education of China (N0 306020)  the National Natural Science Foundation of China  the National High- Tech ICF Committee in China and the Yin-He Super-computer Center  Institute of Applied Physics and Mathematics  Beijing  China  and the National Basic Research Programme of China under Grant No 2006CB921408 

主　　题：ELECTRON-SCATTERING GENERAL PROGRAM RYDBERG STATES ATOMS CONTINUUM NEBULAE IONS 

摘      要：Using a modified R-matrix code, the fine-structure-resolved partial photoionization cross sections of excited Na （Z = 11） are calculated within the Breit-Pauli approximation. Our calculated energy levels of Na＋ and Na are in good agreement with the experimental values within 1% and the branching ratios of the J-resolved partial cross sections are consistent with the recent measurements within the experimental uncertainties. The agreements are impossible to be obtained without adequately taking into account the relativistic effects and the electron correlations together. Therefore, even for the intermediate-Z elements （e.g. Na with Z = 11）, the relativistic effects （mainly the spin-orbit interactions） should not be neglected.