Abstract
The electron-impact excitation of a bending-mode vibration of CO2 is studied theoretically. Differential and integral cross sections are calculated for the vibrational excitation in the range 2.0-50.0 eV. The calculation is based on the fixed-nuclear orientation approximation. A vibrational two-state close-coupling method is employed with an ab initio electrostatic potential and local model potentials for exchange and correlation-polarization interaction. The calculated differential cross sections are found to be satisfactory when compared with experimental data. The resulting integral cross section does not decay quickly at energies above 10 eV, unlike the result of a swarm analysis.
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