Elastic and absorption cross sections for electron-carbon monosulfide collisions

摘要

We report a theoretical study of electron collisions on carbon monosulfide molecules in the low and intermediate energy range. Calculated differential, integral, and momentum-transfer cross sections for elastic e(-)-CS scattering as well as the total absorption cross sections are reported in the 1-500-eV range. A complex optical potential composed by static, exchange, correlation-polarization, plus absorption contributions, derived from a fully molecular wave function, is used to describe the electron-molecule interaction dynamics. The Schwinger variational iterative method combined with the distorted-wave approximation is applied to calculate the scattering amplitudes. Our calculated data are compared with the calculated and experimental results for electron scattering by an isoelectronic molecule N2O. Remarkable similarity in the cross sections is seen for these targets at incident energies of > 50 eV. (c) 2005 Wiley Periodicals, Inc.