State-to-state cross sections for elastic and inelastic electron scattering by N₂ at 20-35 eV, including resonant enhancement of vibrational excitation

We have calculated integral and differential cross sections for elastic scattering and rotational, vibrational, and rotational-vibrational excitation at 20, 25, and 30 eV. We have also calculated partial cross sections and eigenphase sums at these energies and at 35 eV. We present a detailed study of the resonance enchancement of the vibrational excitation cross section in this energy region.