K-Shell photoabsorption in Si11+: Relativistic contributions via Breit-Pauli R-matrix calculations

被引：1

作者：

Hasoglu, M. F. ^{[1
]}

Gorczyca, T. W. ^{[2
]}

Manson, S. T. ^{[3
]}

机构：

[1] Hasan Kalyoncu Univ, Dept Comp Engn, Gaziantep, Turkey

[2] Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA

[3] Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA

来源：

PHYSICA SCRIPTA | 2021年 / 96卷 / 12期

关键词：

numbers; 34; 80; Lx; 31; 15; vj; 32; Zb; photoionization; inner shell; R-matrix; X-RAY-ABSORPTION; CROSS-SECTIONS; PHOTOIONIZATION;

D O I：

10.1088/1402-4896/ac0b84

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

As a part of the investigation of the entire Si isonuclear sequence for x-ray spectral diagnostics, we focus on the Li-like Si11+ ion, a stable component that features prominently in x-ray astrophysical spectra. We perform R-matrix calculations for the photoabsorption cross section of Si11+ including relativistic contributions via the use of a Breit-Pauli Hamiltonian. Relativistic effects-predominantly spin-orbit splitting of resonances and mass-velocity and one-body Darwin global shifts of energies -are shown to be tractable and of importance for accuracy in x-ray spectral modeling data banks.

引用

页数：5

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