CAJ | 학술논문

本文利用BBK模型和DWBA模型计算共面非对称几何条件下中、低能电子碰撞电离H原子的三重微分截面，所得结果与实验测量进行比较，进而研究初态入射电子的扭曲效应和末态出射电子之间的关联效应对三重微分截面的影响，并对这些影响给出定性的物理解释。我们发现，初态扭曲效应比较微弱，在150 eV以上入射能量时可以忽略；而末态关联效应则十分重要，它会抑制Binary峰的高度，改善Recoil峰的形状，并且使Binary峰和Recoil峰都向大角度偏移，从而使理论结果更接近实验测量。
본문이용BBK모형화DWBA모형계산공면비대칭궤하조건하중、저능전자팽당전리H원자적삼중미분절면，소득결과여실험측량진행비교，진이연구초태입사전자적뉴곡효응화말태출사전자지간적관련효응대삼중미분절면적영향，병대저사영향급출정성적물리해석。아문발현，초태뉴곡효응비교미약，재150 eV이상입사능량시가이홀략；이말태관련효응칙십분중요，타회억제Binary봉적고도，개선Recoil봉적형상，병차사Binary봉화Recoil봉도향대각도편이，종이사이론결과경접근실험측량。
The triple differential cross sections ( TDCS) for electron impact ionization of H in coplanar asymmet-ric geometry at low and intermediate energies are calculated by using the BBK and the DWBA models, and the results are compared with the experimental measurements.The initial state distortion effect and the final state correlation effect on the TDCS are investigated and the physics behind the final state correlation effect is re-vealed.It has been found that the initial state distortion effect is weak such that it can be ignored at incident en-ergies above 150 eV.On the other hand, the final state correlation effect is always important.With the final state correlation effect taken into account, the positions of both the binary peak and the recoil peak shift to larger an-gles, and the height of binary peak is suppressed and the shape of recoil peak is reproduced in better agreement with experiment.