中国物理B ›› 2022, Vol. 31 ›› Issue (12): 123401-123401.doi: 10.1088/1674-1056/aca14c

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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. 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
  • 收稿日期:2022-11-03 接受日期:2022-11-09 出版日期:2022-11-11 发布日期:2022-11-21
  • 通讯作者: Yi-Zhi Qu E-mail:yzqu@ucas.ac.cn
  • 基金资助:
    This work has been supported by the National Natural Science Foundation of China (Grant Nos. 12204288, 11934004, and 12274040).

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. 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
  • Received:2022-11-03 Accepted:2022-11-09 Online:2022-11-11 Published:2022-11-21
  • Contact: Yi-Zhi Qu E-mail:yzqu@ucas.ac.cn
  • Supported by:
    This work has been supported by the National Natural Science Foundation of China (Grant Nos. 12204288, 11934004, and 12274040).

摘要: 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.

关键词: electron excitation processes, low energy collision, quantum-mechanical molecular orbital close-coupling method, cross section

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.

Key words: electron excitation processes, low energy collision, quantum-mechanical molecular orbital close-coupling method, cross section

中图分类号:  (Scattering of atoms and molecules)

  • 34.50.-s
34.20.-b (Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions) 34.80.Dp (Atomic excitation and ionization)