依赖动量转移条件下的残留电子屏蔽效应  

Residual Electron Shielding Effect Under Momentum-Transfer Dependent Conditions

作　　者：陈展斌 王军 CHEN Zhanbin;WANG Jun(College of Science,Hunan University of Technology,Zhuzhou Hunan 412007,China)

机构地区：[1]湖南工业大学理学院,湖南株洲412007

出　　处：《湖南工业大学学报》2023年第1期91-96,共6页Journal of Hunan University of Technology

基　　金：湖南省自然科学基金资助项目(2021JJ40167)。

摘　　要：基于DS3C模型,在残留电子屏蔽理论框架下修改计算程序,同时在截面依赖动量转移几何条件下对He原子的三重微分散射截面进行理论计算,对DS3C模型和3种修正模型进行对比研究,考察了碰撞过程中入射炮弹与出射粒子之间的关联特征,探索了不同理论模型下残留电子屏蔽效应对截面的影响。研究结果表明:残留电子屏蔽效应降低了前散射区域三重微分散射截面的幅度,而对后散射区域的幅度影响相对较小。Based on the DS3C model,the calculation program is modified under the framework of the residual electron shielding theory.Meanwhile,a theoretical calculation has been made of the triple differential scattering cross section of He atoms under the geometric condition of cross section dependence upon the momentum transfer,with a comparative study on DS3C model and three modified models,to be followed by an investigation of the correlation characteristics on the incident shells and the outgoing particles in the collision process,as well as an inquiry into the influence of the residual electron shielding effect on the cross section under different theoretical models.The results show that the residual electron shielding effect reduces the amplitude of the triple differential scattering cross section in the forward scattering region,but with a little effect on the amplitude of the backscattering region.

关 键 词：(E 2E)反应 屏蔽效应 微分截面 散射理论 动量转移 

分 类 号：O562.5[理学—原子与分子物理]