Electron interactions with Ar clusters and liquid Ar

Differential and integral electron scattering cross section from some Ar clusters (dimer, trimer and tetramer) are calculated for incident energies ranging from 1 to 500 eV by using a screening corrected additivity rule based on an independent atom representation (IAM-SCAR). The possibility of using this method to derive electron scattering cross section in the liquid phase is discussed and electron scattering cross section data for Ar liquid are provided.