Single-and Double-Electron Capture Processes in Low-Energy Collisions of N^4+ Ions with He  

作　　者：Kun Wang Xiao-Xia Wang Yi-Zhi Qu Chun-Hua Liu Ling Liu Yong Wu Robert JBuenker 王堃;王小霞;屈一至;刘春华;刘玲;吴勇;Robert JBuenker(College of Optoelectronic Technology,University of Chinese Academy of Sciences,Beijing 100049;School of Physics,Southeast University,Nanjing 210094;Data Center for High Energy Density Physics,Institute of Applied Physics and Computational Mathematics,Beijing 100088;Fachbereich C-Mathematik und Naturwissenschaften,Bergische Universitat Wuppertal,D-42097 Wuppertal,Germany)

机构地区：[1]College of Optoelectronic Technology,University of Chinese Academy of Sciences,Beijing 100049 [2]School of Physics,Southeast University,Nanjing 210094 [3]Data Center for High Energy Density Physics,Institute of Applied Physics and Computational Mathematics,Beijing 100088 [4]Fachbereich C-Mathematik und Naturwissenschaften,Bergische Universitat Wuppertal,D-42097 Wuppertal,Germany

出　　处：《Chinese Physics Letters》2020年第2期15-19,共5页中国物理快报（英文版）

基　　金：the National Natural Science Foundation of China under Grant Nos.11774344,11474033 and 11574326;the National Key Research and Development Program of China under Grant No.2017YFA0402300.

摘　　要：We investigate the electron capture processes of N4+(1s22s)colliding with He(1s2)in the energy range of 10-1700 eV/amu using the quantum-mechanical molecular-orbital close-coupling(QMOCC)method.Total and stateselective 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 N3+(1s22p2)+He+(1s)states are the dominant capture states,and the N^2+(1s^2 2s2p^2)+He^2+states are the main DEC states.

关 键 词：method. STATES ELECTRON 

分 类 号：O562[理学—原子与分子物理]