Momentum image of emission electrons in transfer ionization process of slow He2+ colliding on He
文献类型：期刊论文
| 作者 | Li Bin1,2 ; Zhang Da-Cheng2; Meng Ling-Jie1,2; Zhang Peng-Ju1,2; Feng Wen-Tian1,2; Ma Xin-Wen2; Zhu Xiao-Long2; Zhang Shao-Feng1,2; Liu Hui-Ping2; Xu Shen-Yue1,2
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| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2010-12-01 |
| 卷号 | 59页码:8471-8477 |
| 关键词 | reaction microscope transfer ionization velocity distributions of electrons interference of sigma amplitude and pi amplitude |
| ISSN号 | 1000-3290 |
| 英文摘要 | The velocity distribution of emission electrons in the transfer ionization process of 70 keV He2+ colliding on He has been studied with a reaction microscope. These distributions show that the electrons lie mainly in the scattering plane which are observed to be emitted preferentially in the forward direction, lying between 0 and projectile velocity V-p. The distributions also display a typical two-fingered structure with a local minimum on internuclear axis. This characteristic can be qualitatively explained as being due to the interference between sigma amplitude and pi amplitude of electrons final wavefunction. It depends also on the impact parameters; the pi amplitude contribution is dominant at small impact parameters, which leads to a symmetric velocity distribution around the internuclear axis. However, at large impact parameters the sigma amplitude contribution increases relatively obviously, resulting in an asymmetric electrons velocity distribution around the internuclear axis. |
| WOS关键词 | SADDLE-POINT ELECTRONS ; INTERMEDIATE ENERGIES ; COLLISIONS ; ION |
| 资助项目 | National Natural Science Foundation of China[10434100] ; National Natural Science Foundation of China[10979007] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000286689500024 |
| 出版者 | CHINESE PHYSICAL SOC |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/33184]  |
| 专题 | 近代物理研究所_实验物理中心 |
| 通讯作者 | Ma Xin-Wen |
| 作者单位 | 1.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Bin,Zhang Da-Cheng,Meng Ling-Jie,et al. Momentum image of emission electrons in transfer ionization process of slow He2+ colliding on He[J]. ACTA PHYSICA SINICA,2010,59:8471-8477. |
| APA | Li Bin.,Zhang Da-Cheng.,Meng Ling-Jie.,Zhang Peng-Ju.,Feng Wen-Tian.,...&Yan Shun-Cheng.(2010).Momentum image of emission electrons in transfer ionization process of slow He2+ colliding on He.ACTA PHYSICA SINICA,59,8471-8477. |
| MLA | Li Bin,et al."Momentum image of emission electrons in transfer ionization process of slow He2+ colliding on He".ACTA PHYSICA SINICA 59(2010):8471-8477. |
入库方式： OAI收割
来源：近代物理研究所
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