Differential, elastic integral and moment transfer cross sections for electron scattering from N 2 at intermediate- and high-energies

Abstract

A complex optical model potential modified by incorporating the concept of bonded atom, with the overlapping effect of electron clouds between two atoms in a molecule taken into consideration, is firstly employed to calculate the differential cross sections, elastic integral cross sections and moment transfer cross sections for electron scattering from molecular nitrogen over the energy range 300–1000eV by using additivity rule model at Hartree–Fock level. The bonded-atom concept is used in the study of the complex optical model potential composed of static, exchange, correlation polarization and absorption contributions. The calculated quantitative molecular differential cross sections, elastic integral cross sections and moment transfer cross sections are compared with the experimental and theoretical ones wherever available and they are found to be in good agreement with each other. It is shown that the additivity rule model together with the complex optical model potential modified by incorporating the concept of bonded atom is completely suitable for the calculations of differential cross section, elastic integral cross section and moment transfer cross section over the intermediate- and high-energy ranges.