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Average Energy Loss Measured in Single and Double Electron Capture Collisions of He2+ on Ar at Low Velocities |
| LI Bin1,2;MA Xin-Wen1;ZHU Xiao-Long1,2;LIU Hui-Ping1;ZHANG Shao-Feng1,2;QIAN Dong-Bin1,2;CHEN Lan-Fang1,2;FENG Wen-Tian1,2;CAO Shi-Ping1,2;SHA Shan1;ZHANG Da-Cheng1,2 |
| 1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2Graduate School of Chinese Academy of Sciences, Beijing 100049 |
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| Cite this article: |
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LI Bin, MA Xin-Wen, ZHU Xiao-Long et al 2006 Chin. Phys. Lett. 23 1452-1455 |
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Abstract Employing the recoil ion momentum spectroscopy we investigate the collision between He2+ and argon atoms. By measuring the recoil longitudinal momentum the energy losses of projectile are deduced for capture reaction channels. It is found that in most cases for single- and double-electron capture, the inner electron in the target atom is removed, the recoil ion is in singly or multiply excited states (hollow ion is formed), which indicates that electron correlation plays an important role in the process. The captured electrons prefer the ground states of the projectile. It is experimentally demonstrated that the average energy losses are directly related to charge transfer and electronic configuration
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| Keywords:
34.50.Bw
34.70.+e
34.50.s
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Published: 01 June 2006
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