共面对称条件下Mg原子(e,2e)反应的三重微分截面的计算

The calculation of Triple differential cross sections of the (e,2e) reaction for electron impact Mg in a coplanar symmetric geometry

采用修正的扭曲波玻恩近似(DWBA)方法,本文计算了共面对称几何条件下电子碰撞Mg(3s^2)原子(e,2e)反应的三重微分截面.理论方法通过引入Gamow因子来表示(e,2e)反应的后碰撞相互作用(PCI).将计算结果与实验结果及标准DWBA计算结果进行了比较,发现PCI效应起着重要的作用.

The triple differential cross sections for Mg（3s2） in the coplanar symmetric geometry have been calculated with the modified distorted wave Born approximation （DWBA）. The post collisional interaction is included in the calculation. Theoretical results are compared with the recent experimental data and are in agreement with it in the angular positions of the binary and recoil peaks. It is shown that the post-collisional interaction is very important in coplanar symmetric （e,2e） reaction.