https://doi.org/10.1140/epjp/s13360-024-05331-8
Regular Article
Relativistic configuration interaction calculations on Kα X-ray satellites of Rb XXXVI to Rb XXVIII
Department of Physics, Chengdu University of Technology, 610059, Chengdu, Sichuan, People’s Republic of China
Received:
27
February
2024
Accepted:
31
May
2024
Published online:
10
June
2024
Multi-configuration Dirac–Hartree–Fock (MCDHF) and relativistic configuration interaction (RCI) calculations with the Breit interaction and quantum electrodynamical (QED) contributions were carried out in the extended optimal level scheme for the transition wavelengths, transition rates, oscillator strengths, and line strengths of the Kα X-rays from Rb XXXVI through Rb XXVIII. The results are in good agreement with the existing theoretical and experimental results. The discrepancies between the calculated energy levels and the reference values are within 0.45%, while the discrepancies between the calculation parameters for the 1s2p–1s2 transition of helium-like rubidium and the reference values are within 0.1212%. The ratio of the velocity gauge to the length gauge and dT is employed for assessing the accuracy of the calculations, and the uncertainty of the transition line strengths was evaluated using quantitative analysis and qualitative analysis methods. Moreover, additional theoretical data has been anticipated, with the expectation that it will offer reference values for laboratory plasma and astrophysics.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
