Multiple-scattering and electron-uracil collisions at low energies

Links between two well known methods: methods of zero-range and non-overlapped (muffin-tin) potentials are discussed. Some difficulties of the method of zero-range potentials and its possible elimination are discussed. We argue that such advanced method of ZRP potential can be applied to realistic electron-molecular processes. The method reduces electron-molecule scattering to a generalized eigenvalue problem with two Hermitian matrices and admit fast numerical scheme. The theory is applied to electron-uracil scattering. Partial phases and cross-sections at low energies are evaluated and plotted.