Low-energy e - CO scattering in the static-exchange approximation

This paper presents a theoretical study of e - CO scattering at collision energies from 1 to 7 eV in the static-exchange approximation. The T-matrix discrete-basis-set approach to electron-molecule scattering introduced by Rescigno, McCurdy, and McKoy is used together with the variational correction method of Fliflet and McKoy. The authors show the behavior of the 2 and Π2 channel eigenphases and extract the width and position of the II2 shape resonance. Comparison is made with other theoretical and semiempirical results and with the corresponding resonance parameters for e - N2 scattering. The momentum-transfer cross section is calculated and compared with the experimental data of Land and with other theoretical results.