High order Correlation--polarization potential for vibrational excitation scattering of diatomic molecules by low-energy electrons
Feng Hao(冯灏)a)†,Sun Wei-Guo(孙卫国) a)b), and Zeng Yang-Yang(曾阳阳)b)
a School of Physics and Chemistry, Xihua University, Chengdu 610039, China; b Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
Abstract 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 2$\Pi$g 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.
Received: 24 September 2008
Revised: 24 February 2009
Accepted manuscript online:
(Rotation, vibration, and vibration-rotation constants)
Fund: Project supported by National
Natural Science
Foundation of China (Grant Nos 10504022 and 10774105).
Cite this article:
Feng Hao(冯灏),Sun Wei-Guo(孙卫国), and Zeng Yang-Yang(曾阳阳) High order Correlation--polarization potential for vibrational excitation scattering of diatomic molecules by low-energy electrons 2009 Chin. Phys. B 18 4846
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