A model study of dissociative attachment of slow electrons to the carbon dioxide molecule

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Abstract
The split-propagation method is applied to the study of the dissociative attachment of slow electrons to the carbon dioxide molecule in the two modes (symmetrical and asymmetrical stretch modes) approximation. This approach implies keeping track of the time evolution of the initial wavepacket, which is fixed by the vibrational state of the molecule before the collision. It is shown that the tardy ebbing of the wavepacket in the active zone principally refutes the conventional assumption of the irrelevance of the bending motion for the DA process. The influence of the averaging procedure on the oscillating structure in the cross sections dependence on the incident electron energy, which may appear to deviate in different experiments, is discussed.