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Chin. Phys. B, 2020, Vol. 29(9): 093401    DOI: 10.1088/1674-1056/aba276
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Charge transfer in low-energy collisions ofBe3+ and B4+ ions with He

Kun Wang(王堃)1, Yi-Zhi Qu(屈一至)1, Chun-Hua Liu(刘春华)2, Ling Liu(刘玲)3, Yong Wu(吴勇)3, H P Liebermann4, Robert J. Buenker4
1 School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China;
2 School of Physics, Southeast University, Nanjing 210094, China;
3 Data Center for High Energy Density Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
4 Fachbereich C-Mathematik und Naturwissenschaften, Bergische Universitat Wuppertal, D-42097 Wuppertal, Germany
Abstract  

The nonradiative charge-transfer processes of Be3+(1s)/B4+(1s) colliding with He(1s2) are investigated by the quantum-mechanical molecular orbital close-coupling (QMOCC) method from 10 eV/u to 1800 eV/u. Total and state-selective cross sections are obtained and compared with other results available. Although the incident ions have the same number of electrons and collide with the same target, their cross sections are different due to the differences in molecular structure. For Be3+(1s) + He(1s2), only single-electron-capture (SEC) states are important and the total cross sections have a broad maximum around E=150 eV/u. While for B4+(1s) + He(1s2), both the SEC and double-electron-capture (DEC) processes are important, and the total SEC and DEC cross sections decrease rapidly with the energy decreasing.

Keywords:  electron capture processes      low energy collision      QMOCC      Be3+(1s)/B4+(1s) + He  
Received:  25 April 2020      Revised:  13 June 2020      Accepted manuscript online:  03 July 2020
PACS:  34.70.+e (Charge transfer)  
  34.20.-b (Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions)  
Fund: 

Project supported by the National Natural Science Foundation of China (Grant Nos. 11774344, 11474033, and 11574326) and the National Key Research and Development Program of China (Grant No. 2017YFA0402300).

Corresponding Authors:  Yi-Zhi Qu     E-mail:  yzqu@ucas.ac.cn

Cite this article: 

Kun Wang(王堃), Yi-Zhi Qu(屈一至), Chun-Hua Liu(刘春华), Ling Liu(刘玲), Yong Wu(吴勇), H P Liebermann, Robert J. Buenker Charge transfer in low-energy collisions ofBe3+ and B4+ ions with He 2020 Chin. Phys. B 29 093401

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