High order correlation polarization potential for vibrational excitation scattering of diatomic molecules by low-energy electrons  

作　　者：冯灏 孙卫国 曾阳阳 

机构地区：[1]School of Physics and Chemistry,Xihua University [2]Institute of Atomic and Molecular Physics,Sichuan University

出　　处：《Chinese Physics B》2009年第11期4846-4851,共6页中国物理B（英文版）

基　　金：Project supported by National Natural Science Foundation of China (Grant Nos 10504022 and 10774105)

摘　　要：This paper introduces a correlation-polarization potential with high order terms for vibrational excitation in electron-molecule scattering. The new polarization potential generalizes the two-term approximation so that it can better reflect the dependence of correlation and polarization effects on the position coordinate of the scattering electron. It applies the new potential on the vibrational excitation scattering from N2 in an energy range which includes the ^2Ⅱg shape resonance. The good agreement of theoretical resonant peaks with experiments shows that polarization potentials with high order terms are important and should be included in vibrational excitation scattering.This paper introduces a correlation-polarization potential with high order terms for vibrational excitation in electron-molecule scattering. The new polarization potential generalizes the two-term approximation so that it can better reflect the dependence of correlation and polarization effects on the position coordinate of the scattering electron. It applies the new potential on the vibrational excitation scattering from N2 in an energy range which includes the ^2Ⅱg shape resonance. The good agreement of theoretical resonant peaks with experiments shows that polarization potentials with high order terms are important and should be included in vibrational excitation scattering.

关 键 词：vibrational excitation scattering correlation-polarization high order RESONANT 

分 类 号：O641.1[理学—物理化学]