Absolute differential, elastic integrated and moment transfer cross sections for electron--OCS collisions at intermediate and high energies

A complex optical model potential modified by incorporating theconcept of bonded atom, which takes into consideration theoverlapping effect of electron clouds between atoms in a molecule, isfirstly employed to calculate the absolute differential, elasticintegrated and moment transfer cross sections for electron scatteringby OCS over the incident energy range from 200 to 1000,eV using theadditivity rule model at Hartree--Fock level. The calculated resultsare compared with those obtained by experiment and other theorieswherever available, and good agreement is obtained over a wide energyrange. It is shown that the additivity rule model together with themodified potential is completely suitable for calculating theabsolute differential, elastic integrated and moment transfer crosssections of electron scattering by molecules such as OCS.