西北师范大学学报（自然科学版）2026，Vol.62Issue(2)：151-156,6.DOI:10.16783/j.cnki.nwnuz.2026.02.011
Ar5+离子光电离的相对论R-矩阵理论研究
Relativistic R-matrix study of photoionization of Ar5+ions
摘要
Abstract
Direct and resonance photoionization of aluminum-like Ar5+ions from the ground state 1s22s22p63s23p 2P1/2 is studied by using the multiconfigurational Dirac-Hartree-Fock method and the relativistic R-matrix theory.Emphasis is placed on exploring direct and resonance photoionization limits and resonance structure,as well as on identifying possible resonance channels.For this purpose,photoionization cross sections of the ground state of Ar5+ions are calculated using the DARC package based on the R-matrix theory.Direct and resonance ionization limits are obtained,while resonance structure of the Rydberg series is analyzed and described by looking for prominent resonance energy positions.It is found that the identified resonance peaks are related to configurations 1s22s22p63s3lnl'(l=p,d).This work is expected to fill the gap for Ar5+ions,and contributes to the diagnostics and simulation of various astrophysical and laboratory plasmas as well as thermonuclear fusion plasmas,along with other available photoionization data for argon ions.关键词
直接和共振光电离/光电离截面/R-矩阵理论/多组态Dirac-Hartree-Fock方法Key words
direct and resonance photoionization/photoionization cross section/R-matrix theory/multiconfigurational Dirac-Hartree-Fock method分类
数理科学引用本文复制引用
王菊强,李艺,董晨钟,武中文..Ar5+离子光电离的相对论R-矩阵理论研究[J].西北师范大学学报（自然科学版）,2026,62(2):151-156,6.基金项目
国家自然科学基金资助项目(12574281,12174315 （）
11804280) （）
甘肃省杰出青年基金资助项目(23JRRA687) （23JRRA687）
2025年度中国科协青年科技人才培育工程博士生专项计划 （）
