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Revised and extended calculations with relativistic and QED corrections of selected He-like 3d-elemental ions having astrophysical significance
Radiation Physics and Chemistry ( IF 2.8 ) Pub Date : 2020-07-01 , DOI: 10.1016/j.radphyschem.2020.108866
Gajendra Singh , A.K. Singh , T. Nandi

We have systematically enlarged Multiconfiguration Dirac-Fock wavefunctions for the relativistic configuration interaction calculation to include the Breit interaction and quantum electrodynamic corrections for evaluating fine structure data of He-like ions having non-zero nuclear spin for five 3d group elements Scandium, Vanadium, Manganese, Cobalt and Copper. Computed energy levels, transition probabilities, oscillator strengths and x-ray wavelengths are compared with the available experimental values and theoretical computations. Special emphasis is given on the forbidden transition rates and hyperfine structure calculations as they are of potential interest in astrophysics. An attempt is made to study the individual contributions of the relativistic effects through Breit interaction and the quantum electrodynamic corrections such as vacuum polarization and self-energy correction to the line strengths useful for plasma diagnostic studies relevant to astrophysics.

中文翻译:

对选定的具有天体物理学意义的类 He 3d 元素离子进行相对论和 QED 校正的修订和扩展计算

我们系统地扩大了用于相对论构型相互作用计算的多构型狄拉克-福克波函数,包括 Breit 相互作用和量子电动力学校正,用于评估具有非零核自旋的 He 类离子的精细结构数据,用于五种 3d 族元素钪、钒、锰、钴和铜。计算出的能级、跃迁概率、振荡器强度和 X 射线波长与可用的实验值和理论计算进行比较。特别强调了禁止跃迁率和超精细结构计算,因为它们在天体物理学中具有潜在的兴趣。
更新日期:2020-07-01
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