He原子(e,3e)反应中末态波函数的动量相关  

Momentum correlation of the final-state wave function for (e,3e) processes on helium

作　　者：张穗萌[1] 吴兴举[1] 

机构地区：[1]皖西学院物理系,六安237012

出　　处：《原子与分子物理学报》2002年第3期355-359,共5页Journal of Atomic and Molecular Physics

基　　金：安徽省重点科研项目基金 (批准号 :2 0 0 0 0 95 );安徽省教育厅自然科学基金 (批准号 :99jl0 2 10;2 0 0 1kj2 6 2 );安徽省高校学科带头人基金(批准号 :2 0 0 0 37)资助

摘　　要：在前期工作的基础上 ,进一步考虑了He原子 (e ,3e)反应中末态四体的动量相关。用改进后的理论计算了高能电子入射双电离He原子的五重微分截面 (FDCS)。与前期理论相比 。Based on Author's earlier paper, the momentum correlation of the four bodies in the final state is further considered for (e,3e) processes on Helium. A fivefold differential cross section (FDCS) for electron-impact double ionization of helium at high energies are calculated by use of the modified model. It has been found that the present results give a better description for the experimental data, compard with the results of Author's earlier paper.

关 键 词：HE原子 动量相关 有效电荷 (e 3e)反应 氦原子 五重微分截面 碰撞 

分 类 号：O561.5[理学—原子与分子物理]