Hybrid approach to electron scattering from polar molecules

Electron scattering from polar molecules is studied in a hybrid approach that uses the recently introduced algebraic-eikonal approach to describe the forward-angle scattering and the results of, for example, a close-coupling calculation for larger angles. The two calculations are matched by making a partial-wave expansion and combining the high partial waves of the algebraic-eikonal approach with the low partial waves obtained in a full close-coupling calculation. The method is illustrated by applying it to electron scattering from a rigid-rotor molecule with a large dipole moment.