Effects of the electron correlation and Breit and hyperfine interactions on the lifetime of the 2p53s states in neutral neon

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Effects of the electron correlation and Breit and hyperfine interactions on the lifetime of the 2p53s states in neutral neon

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Publication Article, peer reviewed scientific
Title Effects of the electron correlation and Breit and hyperfine interactions on the lifetime of the 2p53s states in neutral neon
Author(s) Li, Jiguang ; Jönsson, Per ; Godefroid, Michel ; Dong, Chenzhong ; Gaigalas, Gediminas
Date 2012
English abstract
In the framework of the multiconfiguration Dirac-Hartree-Fock method, we investigate the transition properties of four excited states in the 2p53s configuration of neutral neon. The electron correlation effects are taken into account systematically by using the active space approach. The effect of higher-order correlation on fine structures is shown. We also study the influence of the Breit interaction and find that it reduces the oscillator strength of the 3 P1o-1 S0 transition by 17%. It turns out that the inclusion of the Breit interaction is essential even for such a light atomic system. Our ab initio calculated line strengths, oscillator strengths, and transition rates are compared with other theoretical values and experimental measurements. Good agreement is found except for the 3 P2o-1 S0 M2 transition for which discrepancies of around 15% between theories and experiments remain. In addition, the impact of hyperfine interactions on the lifetimes of the 3 P0o and 3 P2o metastable states is investigated for the 21Ne isotope (I=3/2). We find that hyperfine interactions reduce the lifetimes drastically. For the 3 P0o state the lifetime is decreased by a factor of 630.
DOI http://dx.doi.org/10.1103/PhysRevA.86.052523 (link to publisher's fulltext)
Publisher Americal Physical Society
Host/Issue Physical Review A;5
Volume 86
ISSN 1050-2947
Pages 9 (052523)
Language eng (iso)
Subject(s) Sciences
Research Subject Categories::NATURAL SCIENCES
Handle http://hdl.handle.net/2043/14616 (link to this page)

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