Dissociative recombination and vibrational excitation of CO+: model calculations and comparison with experiment
(2015) Plasma Sources Science and Technology — Vol. 24, n° 3, p. 35005 (2015)
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- Abstract
- The latest molecular data—potential energy curves and Rydberg/valence interactions—characterizing the super-excited electronic states of CO are reviewed, in order to provide inputs for the study of their fragmentation dynamics. Starting from this input, the main paths and mechanisms for CO+ dissociative recombination are analyzed; its cross sections are computed using a method based on multichannel quantum defect theory. Convoluted cross sections, giving both isotropic and anisotropic Maxwellian rate coefficients, are compared with merged-beam and storage-ring xperimental results. The calculated cross sections underestimate the measured ones by a factor of two, but display a very similar resonant shape. These facts confirm the quality of our approach for the dynamics, and call for more accurate and more extensive molecular structure calculations. Keywords: dissociative recombination, electron impact vibrational excitation, vibrationally excited, multichannel quantum defect theory (Some figures may appear in colour only in the online journal)
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Citations
Mezei, J. Z., Backodissa-Kiminou, R. D., Tudorache, D. E., Morel, V., Chakrabarti, K., Motapon, O., Dulieu, O., Robert, J., Tchang-Brillet, W.-Ü. L., Bultel, A., Urbain, X., Tennyson, J., Hassouni, K., & Schneider, I. F. (2015). Dissociative recombination and vibrational excitation of CO+: model calculations and comparison with experiment. Plasma Sources Science and Technology, 24(3), 35005. https://doi.org/10.1088/0963-0252/24/3/035005 (Original work published 2015)