Elastic electron scattering by CO2, OCS, and CS2 from 0 to 100 eV

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Abstract
The integrated elastic electron scattering cross sections for CO2, OCS, and CS2 were calculated from 0 to 100 eV using the continuum multiple‐scattering model with the Hara exchange approximation. For each molecule, a strong π‐type shape resonance occurs between ∼1–4 eV, followed by multiple, weakly resonant features at higher kinetic energy. The latter are only marginally observable in the integrated cross section, but, in some cases, should be clearly observable in vibrational excitation spectra. Agreement with available experimental information is good for all three cases, except for a gross underestimation of the background (nonresonant) scattering cross section in OCS resulting from our omission of dipole scattering in this work.