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Energies of Doubly Excited 1,3P° Resonances in He-like Systems Below the N = 2–14 Hydrogenic Threshold

Received: 24 September 2021    Accepted: 16 November 2021    Published: 31 May 2022
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Abstract

In this present work, resonance energies and excitation energies of doubly 1,3P° excited states of the helium isoelectronic sequence are calculated. The doubly excited states investigated are labelled in the (K, T, A) classification scheme. The energies are calculated in the framework of the variationnal procedure of the Screening constant by unit nuclear charge (SCUNC) formalism. The results obtained compared very well with theoretical and experimental literature values. The possibility to use the SCUNC formalism report rapidly with an excellent accuracy the position of the excitation resonances as well as their width within simple analytical formulae is demonstrated. It is demonstrated that the SCUNC-method can be used to assist fruitfully experiments for identifying narrow resonance energies. Thus, our results can be used as reference data for the interpretation of atomic spectra for the diagnosis of astrophysical and laboratory plasma. In the present work, a new correlated wave function is presented to express analytically the resonance energies and excitation energies of doubly 1,3P° excited states in the He-like systems.

Published in Nuclear Science (Volume 7, Issue 1)
DOI 10.11648/j.ns.20220701.12
Page(s) 7-29
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Doubly Excited 1,3P° Resonances, Semi-empirical Calculations, Screening Constant by Unit Nuclear Charge, Rydberg Series, He-isoelectronic Sequence, (K, T, A) Classification Scheme

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Cite This Article
  • APA Style

    Jean Kouhissore Badiane, Mamadou Dioulde Ba, Abdourahmane Diallo, Momar Talla Gning. (2022). Energies of Doubly Excited 1,3P° Resonances in He-like Systems Below the N = 2–14 Hydrogenic Threshold. Nuclear Science, 7(1), 7-29. https://doi.org/10.11648/j.ns.20220701.12

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    ACS Style

    Jean Kouhissore Badiane; Mamadou Dioulde Ba; Abdourahmane Diallo; Momar Talla Gning. Energies of Doubly Excited 1,3P° Resonances in He-like Systems Below the N = 2–14 Hydrogenic Threshold. Nucl. Sci. 2022, 7(1), 7-29. doi: 10.11648/j.ns.20220701.12

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    AMA Style

    Jean Kouhissore Badiane, Mamadou Dioulde Ba, Abdourahmane Diallo, Momar Talla Gning. Energies of Doubly Excited 1,3P° Resonances in He-like Systems Below the N = 2–14 Hydrogenic Threshold. Nucl Sci. 2022;7(1):7-29. doi: 10.11648/j.ns.20220701.12

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  • @article{10.11648/j.ns.20220701.12,
      author = {Jean Kouhissore Badiane and Mamadou Dioulde Ba and Abdourahmane Diallo and Momar Talla Gning},
      title = {Energies of Doubly Excited 1,3P° Resonances in He-like Systems Below the N = 2–14 Hydrogenic Threshold},
      journal = {Nuclear Science},
      volume = {7},
      number = {1},
      pages = {7-29},
      doi = {10.11648/j.ns.20220701.12},
      url = {https://doi.org/10.11648/j.ns.20220701.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ns.20220701.12},
      abstract = {In this present work, resonance energies and excitation energies of doubly 1,3P° excited states of the helium isoelectronic sequence are calculated. The doubly excited states investigated are labelled in the (K, T, A) classification scheme. The energies are calculated in the framework of the variationnal procedure of the Screening constant by unit nuclear charge (SCUNC) formalism. The results obtained compared very well with theoretical and experimental literature values. The possibility to use the SCUNC formalism report rapidly with an excellent accuracy the position of the excitation resonances as well as their width within simple analytical formulae is demonstrated. It is demonstrated that the SCUNC-method can be used to assist fruitfully experiments for identifying narrow resonance energies. Thus, our results can be used as reference data for the interpretation of atomic spectra for the diagnosis of astrophysical and laboratory plasma. In the present work, a new correlated wave function is presented to express analytically the resonance energies and excitation energies of doubly 1,3P° excited states in the He-like systems.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Energies of Doubly Excited 1,3P° Resonances in He-like Systems Below the N = 2–14 Hydrogenic Threshold
    AU  - Jean Kouhissore Badiane
    AU  - Mamadou Dioulde Ba
    AU  - Abdourahmane Diallo
    AU  - Momar Talla Gning
    Y1  - 2022/05/31
    PY  - 2022
    N1  - https://doi.org/10.11648/j.ns.20220701.12
    DO  - 10.11648/j.ns.20220701.12
    T2  - Nuclear Science
    JF  - Nuclear Science
    JO  - Nuclear Science
    SP  - 7
    EP  - 29
    PB  - Science Publishing Group
    SN  - 2640-4346
    UR  - https://doi.org/10.11648/j.ns.20220701.12
    AB  - In this present work, resonance energies and excitation energies of doubly 1,3P° excited states of the helium isoelectronic sequence are calculated. The doubly excited states investigated are labelled in the (K, T, A) classification scheme. The energies are calculated in the framework of the variationnal procedure of the Screening constant by unit nuclear charge (SCUNC) formalism. The results obtained compared very well with theoretical and experimental literature values. The possibility to use the SCUNC formalism report rapidly with an excellent accuracy the position of the excitation resonances as well as their width within simple analytical formulae is demonstrated. It is demonstrated that the SCUNC-method can be used to assist fruitfully experiments for identifying narrow resonance energies. Thus, our results can be used as reference data for the interpretation of atomic spectra for the diagnosis of astrophysical and laboratory plasma. In the present work, a new correlated wave function is presented to express analytically the resonance energies and excitation energies of doubly 1,3P° excited states in the He-like systems.
    VL  - 7
    IS  - 1
    ER  - 

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Author Information
  • Department of Physics, UFR Sciences and Technologies, University Assane Seck of Ziguinchor, Ziguinchor, Senegal

  • Department of Physics, UFR Sciences and Technologies, University Assane Seck of Ziguinchor, Ziguinchor, Senegal

  • Department of Physics Chemistry, UFR Sciences and Technologies, University Ibader Thiam of Thies, Thies, Senegal

  • Department of Physics Chemistry, UFR Sciences and Technologies, University Ibader Thiam of Thies, Thies, Senegal

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