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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 |
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Abstract 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.
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Received: 05 July 2023
Revised: 29 November 2023
Accepted manuscript online: 05 December 2023
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PACS:
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31.15.A-
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(Ab initio calculations)
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52.20.Fs
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(Electron collisions)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11974253). |
Corresponding Authors:
Xinlu Cheng
E-mail: chengxl@scu.edu.cn
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Cite this article:
Pengyu Wei(卫鹏宇), Chaowen Huang(黄朝文), Xinlu Cheng(程新路), and Hong Zhang(张红) 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 2024 Chin. Phys. B 33 043101
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