原子与分子物理学报, 2003, 20 (3): 302, 网络出版: 2006-05-19
电子碰撞He(1s2)原子电离的初态依赖与角度关联的无关性
Angular correlations' insignificance in the initial states dependence for electron-impact He(1s2) ionization
2e)反应 三重微分截面 初态依赖 角关联 (e (e 2e） reaction Triple differential cross sections Initial state dependence Correlation
摘要
利用DS3C模型,考虑了入射道靶原子He基态几种不同关联形式的波函数 ,分别计算了He(1s2)(e,2e)反应的三重微分截面.结果表明,微分截面的角度分布与靶基态任何形式的关联无关,而主要取决于出射道粒子间的干涉、关联、交换和多体耦合的共同作用.
Abstract
Electron impact ionization of Helium is investigated theoretically for the cases of some different relative wave functions. A calculation is proposed, which includes almost full correlation in the initial state and final state by DS3C model. The calculations are compared with the available ( e,2e) experimental data on helium 1s2 . The results show that the correlations in the initial states are not necessary for the evaluation of the angular distributions. The triple differential cross section mainly depends on the common interactions betweent the final state particles such as interference, correlation, exchange and many body coupling.
贾祥富, 刘明海. 电子碰撞He(1s2)原子电离的初态依赖与角度关联的无关性[J]. 原子与分子物理学报, 2003, 20(3): 302. 贾祥富, 刘明海. Angular correlations' insignificance in the initial states dependence for electron-impact He(1s2) ionization[J]. Journal of Atomic and Molecular Physics, 2003, 20(3): 302.
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