| Additivity rule for electron scattering on hydrocarbon molecules—considering two different shielding effects |
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| 作者姓名： | 孙金锋 杜朝玲 施德恒 刘玉芳 |
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| 作者单位： | (1)Department of Physics, Henan Normal University, Xinxiang 453002, China; (2)Department of Physics, Henan Normal University, Xinxiang 453002, China; China Center of Advanced Science and Technology (World Laboratory), PO Box 8730, Beijing 100080, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No 10174019). |
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| 摘 要： | Considering the overlapping among atoms in the molecule and the not full transparency of the molecule by electron, we propose a new formulation of the additivity rule (AR). Here the new AR is employed to calculate the total cross sections (TCS) for electron scattering on hydrocarbon molecules C_2H_2, C_2H_4, C_2H_6, and C_3H_8 over an incident energy range of 10－2000eV. The results are compared with the experimental data and other available theoretical calculations. This gives good agreement.
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| 关 键 词： | 电子散射 叠加原理 烃分子 分子物理学 总截面 有效截面系数 |
| 收稿时间： | 2003-07-21 |
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