中国物理B ›› 2024, Vol. 33 ›› Issue (4): 43101-043101.doi: 10.1088/1674-1056/ad123e
Low-energy inelastic electron scattering from carbon monoxide: Excitation and de-excitation of the X1Σ+, a3Π, a'3Σ+, A1Π, d3Δ, e3Σ-, I1Σ- and D1Δ electronic states
Pengyu Wei(卫鹏宇)1, Chaowen Huang(黄朝文)1, Xinlu Cheng(程新路)1,†, and Hong Zhang(张红)2
- 1 Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China;
2 College of Physics, Sichuan University, Chengdu 610065, China
Low-energy inelastic electron scattering from carbon monoxide: Excitation and de-excitation of the X1Σ+, a3Π, a'3Σ+, A1Π, d3Δ, e3Σ-, I1Σ- and D1Δ electronic states
Pengyu Wei(卫鹏宇)1, Chaowen Huang(黄朝文)1, Xinlu Cheng(程新路)1,†, and Hong Zhang(张红)2
- 1 Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China;
2 College of Physics, Sichuan University, Chengdu 610065, China
摘要： Cross-sections for electronic excitation and de-excitation among the ground state and lowest-lying seven electronic excited states of carbon monoxide (CO) by low-energy electron impact are computed using the $R$-matrix method. The excitation cross-sections from the ground state to the electronic states ${\rm a}^{3}\Pi $, ${\rm a}^{\prime 3}\Sigma^{+}$ and ${\rm A}^{1}\Pi $ agree with previous experimental and theoretical results. In addition, the cross-sections for the ${\rm I}^{1}\Sigma^{-}$ and ${\rm D}^{1}\Delta $ states of CO, which will cascade to CO ${\rm a}^{\prime 3}\Sigma^{+}$ and ${\rm A}^{1}\Pi $ states, are calculated. Furthermore, in contrast to the typical increase in electronic excitation cross-sections with collision energy, the de-excitation cross-sections show a negative trend with increasing energy.
中图分类号: (Ab initio calculations)
- 31.15.A-