(e,2e)动力学实验对称性的研究  

The symmetric study in(e,2e) dynamic experiments

作　　者：贾昌春[1] A Crowe 

机构地区：[1]安徽大学物理与材料科学学院,安徽合肥230039 [2]Physical Department,University of Newcastle

出　　处：《安徽大学学报（自然科学版）》2007年第3期55-56,75,共3页Journal of Anhui University(Natural Science Edition)

摘　　要：通过(e,2e)动力学实验装置,在不对称几何条件下,且入射电子能量相同时(E0=340eV),通过改变动量转移的大小,研究三重微分截面角关联曲线对称性的破坏.实验结果表明,当动量转移较大时,实验获得的三重微分截面角关联曲线峰位与动量转移■位置更接近,表明动量转移■是一个重要的物理量,它制约着三重微分截面角关联曲线的对称性.The symmetry of angular correlation curve of triple differential cross section （TDCS） was studled at an incident electron energy oi 340 eV under highly asymmetric kninematics by changing the momentum transfer K using （e, 2e） dynamic experimental device. The experimental results showed that the peak position of angular correlation curve of TDCS was more closed to the position of momentum transfer K when the momentum transfer becomes larger. And it also showed that momentum transfer K is an important role which influenced the symmetry of angular correlation curve of TDCS.

关 键 词：三重微分截面(TDCS) 动量转移(K) 对称性 

分 类 号：O562.5[理学—原子与分子物理]