发表机构
Ho Chi Minh City University of education; School of Physics, University of New South Wales（胡志明市教育大学; 新南威尔士大学物理学院）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
用组态相互作用方法计算Xe II、Rn II和Og II离子的能级、朗德g因子和超精细结构常数，通过与Xe II实验数据对比验证方法，还对Rn II和Og II作预测，为提取核矩提供电子因子。
AI 中文摘要
计算了单电离稀有气体原子Xe II、Rn II和Og II的能级、朗德g因子和超精细结构常数。采用组态相互作用方法并对高激发组态进行微扰处理，用含时哈特里-福克方法考虑超精细相互作用中的核心极化效应。通过与Xe II实验数据对比验证方法，对Rn II和Og II作预测，还关注重多电子离子超精细结构的 Breit 和量子电动力学修正。
英文摘要
Energy levels, Landé $g$-factors, and hyperfine-structure constants are calculated for the singly ionized noble-gas atoms Xe II, Rn II, and Og II. The calculations are performed using the configuration-interaction method with perturbative treatment of high-lying configurations. Core polarization effects in the hyperfine interaction are included within the time-dependent Hartree-Fock method. Calculations for Xe II are used to test the accuracy of the approach by comparison with available experimental data. The agreement is at the level of about one percent for the energies and typically about ten percent for the hyperfine constants, with better accuracy for states with large hyperfine constants. Predictions are then presented for Rn II and Og II, for which experimental spectroscopic data are limited or absent. Special attention is paid to Breit and quantum-electrodynamic corrections to the hyperfine structure in heavy many-electron ions. We show that these corrections may be strongly enhanced by configuration mixing when interacting states with very different hyperfine matrix elements are separated by small energy intervals. This effect is demonstrated explicitly for odd-parity $J=1/2$ states of Og II. The calculated hyperfine-structure constants for Rn II and Og II provide electronic factors needed for extracting nuclear magnetic dipole and electric quadrupole moments from future spectroscopic measurements. These results may be useful for experimental studies of radon and oganesson ions and for testing nuclear models in the superheavy region.
Comments9 pages, 6 tables
