初道库仑场对低能电子碰撞H电离反应的影响  

Coulomb Effect in the Initial Channel of Ionization Reaction of Electron Impact Hydrogen at Low Energy

作　　者：孙世艳[1] 武玉慧[1] 贾祥富[1] 

机构地区：[1]山西师范大学物理与信息工程学院,山西临汾041004

出　　处：《山西师范大学学报（自然科学版）》2005年第4期45-48,共4页Journal of Shanxi Normal University(Natural Science Edition)

基　　金：山西自然科学基金(20051008);山西省回国留学人员基金(02-16)

摘　　要：基于CDS3C模型,研究了低能电子碰撞H(e,2 e)反应过程.计算了能量为54.4 eV的入射电子碰撞H(e,2 e)反应的TDCS,将其计算结果与3C、DS3C模型所得结果与实验结果进行了比较.表明在碰撞过程中初通道存在一不可忽略的库仑场.CDS3C model is applied to study ionization of atomic hydrogen by electron impact. Triple differential cross sections are calculated for electron impact ionization of atomic hydrogen at incident energy of 54.4 eV. Comparisons are made with experimental data and those of 3C and DS3C model. It is showed that CDS3C model can give a successful description of low-energies （e, 2e） process for coplanar asymmetric geometry, which reflects a unneglectable Coulomb field exists in the initial channel in the course of collision.

关 键 词：(e 2e)三重微分截面 库仑相互作用 CDS3C模型 

分 类 号：O561.5[理学—原子与分子物理]