Energy levels and transition rates for Mg-like Kr XXV

Energy levels and transition rates for electric-dipole (E1), electric-quadrupole (E2), magnetic-dipole (M1), and magnetic-quadrupole (M2) transitions among the lowest 159 levels arising from the n ≤ 5 configurations in Kr XXV are calculated through two state-of-the-art methods, i.e. second-order man...

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Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2015-09, Vol.48 (17), p.175004-12
Main Authors: Si, R, Guo, X L, Yan, J, Li, C Y, Li, S, Huang, M, Chen, C Y, Zou, Y M
Format: Article
Language:English
Subjects:
Correlation
Energy levels
Inclusions
Magnesium
many-body perturbation theory
Mathematical analysis
Mg-like Kr XXV
multi-configuration Dirac-Fock method
Perturbation methods
Perturbation theory
State of the art
transition probabilities
wavelengths
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Summary:Energy levels and transition rates for electric-dipole (E1), electric-quadrupole (E2), magnetic-dipole (M1), and magnetic-quadrupole (M2) transitions among the lowest 159 levels arising from the n ≤ 5 configurations in Kr XXV are calculated through two state-of-the-art methods, i.e. second-order many-body perturbation theory (MBPT) and multi-configuration Dirac-Fock (MCDF) method. In the latter calculation, valence-valence and the 2p, 2s core-valence correlations are taken into account. A parallel calculation using the standard relativistic configuration-interaction (RCI) method is also carried out to assess the improvement from the inclusion of second-order many-body perturbation. The present MBPT and MCDF results are compared with available experimental and other theoretical values. They are believed to be the most comprehensive and accurate ones to date.
ISSN:0953-4075
1361-6455
DOI:10.1088/0953-4075/48/17/175004