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Article Dans Une Revue Plasma Sources Science and Technology Année : 2015

Dissociative recombination and vibrational excitation of CO+: model calculations and comparison with experiment

Résumé

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 experimental 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.
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hal-01612340 , version 1 (06-10-2017)

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J. Zs Mezei, R. D. Backodissa-Kiminou, D. E. Tudorache, Vincent Morel, K. Chakrabarti, et al.. Dissociative recombination and vibrational excitation of CO+: model calculations and comparison with experiment. Plasma Sources Science and Technology, 2015, 24 (3), pp.035005. ⟨10.1088/0963-0252/24/3/035005⟩. ⟨hal-01612340⟩
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