Interference between dielectronic and radiative recombination of Be-like highly charged ions

被引：0

作者：

Tong, Xiao-Min ^{[1
]}

Gao, Xiang ^{[2
]}

Kato, Daiji ^{[3
,4
]}

Nakamura, Nobuyuki ^{[5
]}

机构：

[1] Univ Tsukuba, Ctr Computat Sci, 1 1 1 Tennodai, Tsukuba, Ibaraki 3058573, Japan

[2] Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China

[3] Natl Inst Fus Sci, Toki, Gifu 5095292, Japan

[4] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Fukuoka 8168580, Japan

[5] Univ Electro Commun, Inst Laser Sci, Tokyo 1828585, Japan

来源：

PHYSICAL REVIEW A | 2023年 / 107卷 / 05期

基金：

中国国家自然科学基金; 日本学术振兴会;

关键词：

SATELLITE LINES; R-MATRIX; POLARIZATION; PHOTOIONIZATION; COEFFICIENTS; SPECTRA;

D O I：

10.1103/PhysRevA.107.052801

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We perform a systematical study for the polarization of x rays emitted when a free electron is captured by Be-like highly charged ions theoretically. We focus on the dielectronic recombination of the J = 1/2 -> J = 1/2 transition and its polarization is zero due to axial symmetry. Including the interference between the dielectronic and radiative recombinations, the polarization changes dramatically when the electron energy crosses the resonant energy. By comparing the simulations with or without certain interactions, we found that the Breit interaction is not important even for very high-Z ions. For low-Z ions, the configuration interaction of the dielectronic recombination states affects the polarization greatly, while for high-Z ions the configuration interaction of the ground state of Be-like ions plays an important role.

引用

页数：5

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