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Influence of electron correlation on the cross section and linear polarization of radiation emitted by electron-impact excitation of Ca+ and Ba+ ions

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Abstract

Calculations of the electron-impact excitation (EIE) of singly charged Ca+ and Ba+ ions and subsequent de-excitation process are performed using a fully relativistic distorted wave (RDW) method. To resolve the discrepancy between previous theory and experiment, careful consideration is given to the generation of the target state wave-functions through the systematic inclusion of electron correlations. It is found that the electron correlation effects play a significant role on the cross section, while the effects on the linear polarization of the emitted radiation are relatively small. Good agreement between our result and experiment is obtained.

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Authors and Affiliations

  1. School of Science, Hunan University of Technology, Zhuzhou, 412007, P.R. China

    Zhan-Bin Chen

  2. College of Science, National University of Defense Technology, Changsha, 410073, P.R. China

    Zhan-Bin Chen

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  1. Zhan-Bin Chen
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Correspondence to Zhan-Bin Chen.

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Chen, ZB. Influence of electron correlation on the cross section and linear polarization of radiation emitted by electron-impact excitation of Ca+ and Ba+ ions. Eur. Phys. J. D 72, 67 (2018). https://doi.org/10.1140/epjd/e2018-80664-3

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  • DOI: https://doi.org/10.1140/epjd/e2018-80664-3

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