| Polarization effect in （e, 2e） reaction process for Ar （3s） in coplanar asymmetric geometry |
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| 引用本文： | 周丽霞,王殿生,燕友果,王彩玲.Polarization effect in （e, 2e） reaction process for Ar （3s） in coplanar asymmetric geometry[J].中国物理 B,2014(11):272-276. |
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| 作者姓名： | 周丽霞 王殿生 燕友果 王彩玲 |
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| 作者单位： | College of Science, China University of Petroleum |
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| 基金项目： | Project supported by the Fundamental Research Funds for the Central Universities of China （Grant Nos. 13CXO2019A and 13（2X0501/A）. |
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| 摘 要： | The （e, 2e） triple differential cross sections （TDCSs） of Ar （3s） are calculated by using distorted-wave Born approx- imation under coplanar asymmetric geometry. The incident electron energy is 113.5 eV, and the scattering electron angle 01 is -15~. The ejected electron energy is set at 10 eV, 7.5 eV, 5 eV, and 2 eV, respectively. The polarization effects have been discussed and the polarization potential Vpol changing from a second-order to a fourth-order term has been analyzed. Our calculated TDCSs have been compared with reported experimental and theoretical results, and the calculated TDCSs of polarization potential up to the fourth order could give a good fit with experimental results in the binary region, but fail to predict the correct recoil-to-binary ratio in most cases.
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| 关 键 词： | 不对称 极化效应 反应过程 3S 几何 共面 电子能量 三重微分截面 |
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