Polyatomic excitation effects observed in an electron impact study of the 4 eV shape resonance of carbon dioxide
- 14 August 1993
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 26 (15) , 2463-2474
- https://doi.org/10.1088/0953-4075/26/15/029
Abstract
Results from a high resolution study of vibrational excitation of the 4 eV shape resonance of carbon dioxide are presented. The role of the Fermi resonance (i.e. the near-degeneracy of and interaction between the vibrational modes (1, 0, 0) and (0, 2, 0)) is discussed. Evidence for differing structure in the excitation functions of members of Fermi polyads of the types (n, 0, 0) and (n, 1, 0) is presented. This difference is structure is attributed to bending deformation. Local complex potential calculations are presented which support this finding.Keywords
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