Wave packet formulation of the boomerang model for resonant electron–molecule scattering

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Abstract
A time‐dependent formulation of the boomerang model for resonant electron–molecule scattering is presented in terms of a wave packet propagating on the complex potential surface of the metastable anion. The results of calculations using efficient semiclassical techniques for propagating the wave packet are found to be in excellent agreement with full quantum‐mechanical calculations of vibrational excitation cross sections in e −–N2scattering. The application of the wave packet formulation as a computational and conceptual approach to the problem of resonant collisions with polyatomic molecules is discussed in the light of recent wave packet calculations on polyatomic photodissociation and Raman spectra.