Single- and Double-Electron Capture Processes in Low-Energy Collisions of N$^{4+}$ Ions with He
Kun Wang1 , Xiao-Xia Wang1 , Yi-Zhi Qu1** , Chun-Hua Liu2 , Ling Liu3 , Yong Wu3 , Robert J. Buenker4
1 College of Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 1000492 School of Physics, Southeast University, Nanjing 2100943 Data Center for High Energy Density Physics, Institute of Applied Physics and Computational Mathematics, Beijing 1000884 Fachbereich C-Mathematik und Naturwissenschaften, Bergische Universitat Wuppertal, D-42097 Wuppertal, Germany
Abstract ：We investigate the electron capture processes of N$^{4+}$(1$s^{2}2s$) colliding with He(1$s^{2}$) in the energy range of 10–1700 eV/amu using the quantum-mechanical molecular-orbital close-coupling (QMOCC) method. Total and state-selective single-electron capture and double-electron capture (SEC and DEC) cross sections are obtained and compared with other available studies. The results agree better with the experimental data in both trend and magnitude when the electron translation factor (ETF) effects are included. Our results indicate that both the SEC and DEC processes play important roles in the considered energy region. For the SEC processes, the N$^{3+}$(1$s^{2}2p^{2}$) + He$^{+}$(1$s$) states are the dominant capture states, and the N$^{2+}$(1$s^{2}2s2p^{2}$) + He$^{2+}$ states are the main DEC states.
收稿日期: 2019-11-13
出版日期: 2020-01-18
:
34.70.+e
(Charge transfer)
34.20.-b
(Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions)
引用本文:
. [J]. 中国物理快报, 2020, 37(2): 23401-.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/37/2/023401
或
https://cpl.iphy.ac.cn/CN/Y2020/V37/I2/23401
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2020, Vol. 37 
