Core-excitation processes of O(1s) in CO, CO₂and OCS molecules by electron impact

Abstract

Abstract. Distorted-wave approximation is applied to study electron-impact excitation of core electrons in CO2, CO and OCS. Differential and integral cross sections for the transitions:Π(1σ → 2π) in CO are calculated and reported in the (550-1000)-eV incident energy range.Comparison is made among the calculated data for the three targets. The physical origins of the similarity and difference of these data are also discussed. In addition, the generalized oscillator strengths for singlet 1σg → 2πu and 1σu → 2πu transitions for CO2 are calculated at 1300 eV. The comparison of these results with the available data in the literature is encouraging.