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Electron excitation processes in low energy collisions of hydrogen-helium atoms |
| Kun Wang(王堃)1, Chuan Dong(董川)1, Yi-Zhi Qu(屈一至)2,†, Ling Liu(刘玲)3, Yong Wu(吴勇)3, Xu-Hai Hong(洪许海)4, and Robert J. Buenker5 |
1 Institute of Environmental Science, Shanxi University, Taiyuan 030006, China;
2 College of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China;
3 National Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
4 School of Physics and Electronic Technology, Liaoning Normal University, Dalian 116029, China;
5 Fachbereich C-Mathematik und Naturwissenschaften, Bergische Universitat Wuppertal, D-42097 Wuppertal, Germany |
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Abstract The electron excitation processes of $\rm H(1s) + He(1s^{2}) \to H(2s/2p) + He(1s^{2})$ are studied in impact energy range of 20—2000 eV/u by using the quantum-mechanical molecular orbital close-coupling (QMOCC) method. Total and state-selective cross sections have been obtained and compared with the available theoretical and experimental results. The results agree well with available measurements in the overlapping energy regions overall. The comparison of our results with other theoretical calculations further demonstrates the importance of considering a sufficient number of channels. The datasets presented in this paper, including the excitation cross sections, are openly available at https://www.doi.org/10.57760/sciencedb.j00113.00083.
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Received: 03 November 2022
Accepted manuscript online: 09 November 2022
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PACS:
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34.50.-s
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(Scattering of atoms and molecules)
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34.20.-b
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(Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions)
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34.80.Dp
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(Atomic excitation and ionization)
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| Fund: This work has been supported by the National Natural Science Foundation of China (Grant Nos. 12204288, 11934004, and 12274040). |
Corresponding Authors:
Yi-Zhi Qu
E-mail: yzqu@ucas.ac.cn
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Cite this article:
Kun Wang(王堃), Chuan Dong(董川), Yi-Zhi Qu(屈一至), Ling Liu(刘玲), Yong Wu(吴勇),Xu-Hai Hong(洪许海), and Robert J. Buenker Electron excitation processes in low energy collisions of hydrogen-helium atoms 2022 Chin. Phys. B 31 123401
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