| ATOMIC AND MOLECULAR PHYSICS |
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Multiple Auger Decay Following Xe$^{+}$ (4$p_{3/2}^{-1}$) Ionization |
| Zhenqi Liu1, Qing Liu1, Yulong Ma2, Fuyang Zhou3, and Yizhi Qu1* |
1School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
2College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China
3Data Center for High Energy Density Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
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| Cite this article: |
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Zhenqi Liu, Qing Liu, Yulong Ma et al 2021 Chin. Phys. Lett. 38 023201 |
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Abstract The Auger decay for the many-electron Xe$^{+}$ (4$p_{3/2}^{-1}$) state is studied in detail, using multistep approaches. It is found that the single Auger decay channels are primarily Coster–Kronig processes, which is in accord with other theoretical and experimental results. The double and triple Auger decays result primarily from cascade processes, i.e., the sequential two-step and three-step Auger decay, and as such, the contributions from direct processes can be neglected. Level-to-level rates for single, double, and triple decays are obtained, based on which comprehensive Auger electron spectra and ion yields are obtained. Our decay paths and Auger electron spectra are in agreement with the experimental analysis [Hikosaka et al., Phys. Rev. A 76 (2007) 032708], and our ion yield ratios (Xe$^{2+}$: Xe$^{3+}$: Xe$^{4+} = 4.6\!:\!87.0\!:\!8.4$) are also in line with their values ($5.0\!:\!86.0\!:\!9.0$). However, with respect to the ion yield ratios, a discrepancy still remains among the experimental and theoretical results. Taking into account the complexity of Xe's electronic structure, further, more detailed experiments are still required.
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Received: 04 October 2020
Published: 27 January 2021
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| PACS: |
32.80.Hd
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(Auger effect)
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32.80.Zb
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(Autoionization)
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31.15.vj
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(Electron correlation calculations for atoms and ions: excited states)
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| Fund: Supported by the National Key Research and Development Program of China (Grant No. 2017YFA0402300), and the National Natural Science Foundation of China (Grant Nos. 11774344 and 11474033). |
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