摘要
We extend the standard distorted wave Born approximation(DWBA)to include the second-order Born amplitude in order to describe the multiple interactions between a projectile and an atomic target.Both the first-and secondorder DWBA models are used to calculate triply differential cross sections(TDCS)of coplanar(e,2e)on atomic argon with the scattered electron energy fixed at 500eV,the scattering angle at 6°and the ejected electron energies at 37,74 and 205 e V.Overall agreements with experimental measurements have been obtained in shape,and the second-order DWBA model improves the calculations as expected,especially for recoil peak of TDCS.
作者
王旸
周雅君
焦利光
WANG Yang;ZHOU Ya-Jun;JIAO Li-Guang(Center for Theoretical Atomic and Molecular Physics,Academy of Fundamental and Interdisciplinary Sciences,Harbin Institute of Technology,Harbin 150080)
基金
Supported by the National Natural Science Foundation of China under Grant Nos 10874035 and 11174066
the Natural Scientific Research Innovation Foundation in Harbin Institute of Technology.One of us(Y Wang)is grateful for the Project(HIT.NSRIF.2009161).
