论文标题

基准计算具有激发能和波长的光谱准确性,硫酸钨中的波长

Benchmarking calculations with spectroscopic accuracy of excitation energies and wavelengths in sulfur-like tungsten

论文作者

Zhang, Chun Yu, Wang, Kai, Godefroid, Michel, Jönsson, Per, Si, Ran, Chen, Chong Yang

论文摘要

S样W的原子特性通过最先进的方法进行评估,即多配置DIRAC-HARTREE-FOCK(MCDHF)方法与相对论配置相互作用(RCI)方法相结合。计算了涉及涉及88个最低水平的W $^{+58} $(W LIX)的水平能量,波长和过渡参数。我们详细讨论价值和核心价电子相关效应,BREIT相互作用,通过横向光子相互作用的BREIT相互作用以及量子电动力学(QED)校正的相对重要性。当前水平的能量是高度准确的,不确定性接近光谱可以实现的目标。因此,它们为S样W的其他理论计算提供了基准测试,并应协助光谱学家在复杂光谱中对观察到的线的分配/鉴定。

Atomic properties of S-like W are evaluated through a state-of-the-art method, namely, the multi-configuration Dirac-Hartree-Fock (MCDHF) method combined with the relativistic configuration interaction (RCI) approach. The level energies, wavelengths, and transition parameters involving the 88 lowest levels of W$^{+58}$ (W LIX) are calculated. We discuss in detail the relative importance of the valence- and core-valence electron correlation effects, the Breit interaction, the higher order retardation correction beyond the Breit interaction through the transverse photon interaction, and the quantum electrodynamical (QED) corrections. The present level energies are highly accurate, with uncertainties close to what can be achieved from spectroscopy. As such, they provide benchmark tests for other theoretical calculations of S-like W and should assist the spectroscopists in their assignment/identification of observed lines in complex spectra.

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