The motivation of the diagonalization method is to take into consideration the coupling between closed and opened channels in term of perturbation theory and to neglect the indirect coupling as well but also the autoionisation states through the opened channels. This procedure leads to a relatively simple mathematical problem consisting of solving a system of linear algebraic equations instead of a system of coupled differential equations or integro-differential equations. In this paper, we will focus on the Resonance positions, Partial and total widths for the autoionization into various decay channels of some 1,3L° doubly excited states of helium-like oxygen ion O6+ converging on the N=5 hydrogenic thresholds are reported for L=1, 2, 3, 4, 5, 6 and 7. The calculation was made in the framework of the diagonalization method approximation in LS coupling scheme. The partial widths for multi-channel autoionizing levels to sublevels of O7+ are calculated by neglecting the direct coupling between the open channels. We were able to find results consistent with some in the literature. It is about the configuration P, D, F, G, H, I and K. We could see that the decays are relatively dependent on the ionization thresholds of the residual ion O7+. Some analyses are made on these resultast and only according to the level of decay focused in this paper then made a surplus in the framework of nuclear spectroscopy.
| Published in | Nuclear Science (Volume 6, Issue 4) |
| DOI | 10.11648/j.ns.20210604.11 |
| Page(s) | 26-34 |
| 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. |
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Copyright © The Author(s), 2024. Published by Science Publishing Group |
Autoionization, Electron-electron Interactions, Partial Widths
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APA Style
Ndiaye, O., Tidiane Ba, O., Macoumba Faye, P., Ndiaye, N., Dione, D., et al. (2021). Multi-channel Decay Partial Widths of 1,3L° Autoionizing Levels of O6+ Below N=5 Threshold. Nuclear Science, 6(4), 26-34. https://doi.org/10.11648/j.ns.20210604.11
ACS Style
Ndiaye, O.; Tidiane Ba, O.; Macoumba Faye, P.; Ndiaye, N.; Dione, D., et al. Multi-channel Decay Partial Widths of 1,3L° Autoionizing Levels of O6+ Below N=5 Threshold. Nucl. Sci. 2021, 6(4), 26-34. doi: 10.11648/j.ns.20210604.11
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Download@article{10.11648/j.ns.20210604.11,
author = {Oumar Ndiaye and Oumar Tidiane Ba and Papa Macoumba Faye and Nogaye Ndiaye and Djicknack Dione and Jean Paul Latyr Faye and Alassane Traore and Ababacar Sadikhe Ndao},
title = {Multi-channel Decay Partial Widths of 1,3L° Autoionizing Levels of O6+ Below N=5 Threshold},
journal = {Nuclear Science},
volume = {6},
number = {4},
pages = {26-34},
doi = {10.11648/j.ns.20210604.11},
url = {https://doi.org/10.11648/j.ns.20210604.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ns.20210604.11},
abstract = {The motivation of the diagonalization method is to take into consideration the coupling between closed and opened channels in term of perturbation theory and to neglect the indirect coupling as well but also the autoionisation states through the opened channels. This procedure leads to a relatively simple mathematical problem consisting of solving a system of linear algebraic equations instead of a system of coupled differential equations or integro-differential equations. In this paper, we will focus on the Resonance positions, Partial and total widths for the autoionization into various decay channels of some 1,3L° doubly excited states of helium-like oxygen ion O6+ converging on the N=5 hydrogenic thresholds are reported for L=1, 2, 3, 4, 5, 6 and 7. The calculation was made in the framework of the diagonalization method approximation in LS coupling scheme. The partial widths for multi-channel autoionizing levels to sublevels of O7+ are calculated by neglecting the direct coupling between the open channels. We were able to find results consistent with some in the literature. It is about the configuration P, D, F, G, H, I and K. We could see that the decays are relatively dependent on the ionization thresholds of the residual ion O7+. Some analyses are made on these resultast and only according to the level of decay focused in this paper then made a surplus in the framework of nuclear spectroscopy.},
year = {2021}
}
TY - JOUR T1 - Multi-channel Decay Partial Widths of 1,3L° Autoionizing Levels of O6+ Below N=5 Threshold AU - Oumar Ndiaye AU - Oumar Tidiane Ba AU - Papa Macoumba Faye AU - Nogaye Ndiaye AU - Djicknack Dione AU - Jean Paul Latyr Faye AU - Alassane Traore AU - Ababacar Sadikhe Ndao Y1 - 2021/12/29 PY - 2021 N1 - https://doi.org/10.11648/j.ns.20210604.11 DO - 10.11648/j.ns.20210604.11 T2 - Nuclear Science JF - Nuclear Science JO - Nuclear Science SP - 26 EP - 34 PB - Science Publishing Group SN - 2640-4346 UR - https://doi.org/10.11648/j.ns.20210604.11 AB - The motivation of the diagonalization method is to take into consideration the coupling between closed and opened channels in term of perturbation theory and to neglect the indirect coupling as well but also the autoionisation states through the opened channels. This procedure leads to a relatively simple mathematical problem consisting of solving a system of linear algebraic equations instead of a system of coupled differential equations or integro-differential equations. In this paper, we will focus on the Resonance positions, Partial and total widths for the autoionization into various decay channels of some 1,3L° doubly excited states of helium-like oxygen ion O6+ converging on the N=5 hydrogenic thresholds are reported for L=1, 2, 3, 4, 5, 6 and 7. The calculation was made in the framework of the diagonalization method approximation in LS coupling scheme. The partial widths for multi-channel autoionizing levels to sublevels of O7+ are calculated by neglecting the direct coupling between the open channels. We were able to find results consistent with some in the literature. It is about the configuration P, D, F, G, H, I and K. We could see that the decays are relatively dependent on the ionization thresholds of the residual ion O7+. Some analyses are made on these resultast and only according to the level of decay focused in this paper then made a surplus in the framework of nuclear spectroscopy. VL - 6 IS - 4 ER -
Institute of Applied Nuclear Technology (IANT), University Cheikh Anta Diop, Dakar-Fann, Senegal
Institute of Applied Nuclear Technology (IANT), University Cheikh Anta Diop, Dakar-Fann, Senegal; Department of Physics, University Cheikh Anta Diop, Dakar-Fann, Senegal
Institute of Applied Nuclear Technology (IANT), University Cheikh Anta Diop, Dakar-Fann, Senegal
Institute of Applied Nuclear Technology (IANT), University Cheikh Anta Diop, Dakar-Fann, Senegal
Institute of Applied Nuclear Technology (IANT), University Cheikh Anta Diop, Dakar-Fann, Senegal
Institute of Applied Nuclear Technology (IANT), University Cheikh Anta Diop, Dakar-Fann, Senegal; Department of Physics, University Cheikh Anta Diop, Dakar-Fann, Senegal
Institute of Applied Nuclear Technology (IANT), University Cheikh Anta Diop, Dakar-Fann, Senegal; Department of Physics, University Cheikh Anta Diop, Dakar-Fann, Senegal
Institute of Applied Nuclear Technology (IANT), University Cheikh Anta Diop, Dakar-Fann, Senegal; Department of Physics, University Cheikh Anta Diop, Dakar-Fann, Senegal
