共面不对称条件下低能电子碰撞电离Ar(3p)的三重微分截面

Triple differential cross section for the ionization of Ar(3p) by low-energy electron impact in the coplanar asymmetric geometry

采用修正的扭曲波玻恩近似方法,在共面不对称几何条件下,计算了能量为70.8 eV电子与Ar(3p)碰撞电离的(e,2e)三重微分截面,并与最新实验数据进行了比较.结果表明电子交换效应和后碰撞相互作用在低能电子碰撞的(e,2e)过程中起着重要作用.

（e, 2e） triple differential cross sections for the ionization of Ar （3p） by 70.8 eV electron impact are calculated in the coplanar asymmetric geometry using the modified distorted-wave Born approximation, and compared with the recent experimental data of Ren et al. [Ren et al. 2012 Phys. Rev. A 85 032702]. The results show that electron exchange effect and post-collision interaction play an important role in the （e, 2e） process of low-energy electron impact.