Study of electron scattering by C${\mathrm{O}}_2$ at the static-exchange level

We present results for the scattering of low-energy electrons by C${\mathrm{O}}_2$ at the static-exchange level. The collision equations were solved by the iterative Schwinger method. All necessary partial-wave expansions have been carried out to high order so as to assure convergence of the scattering solutions. Of special interest are our calculated position and width for the ${}_{}{}^2{}_{}{}^{}\Pi _u^{}{}_{}{}^{}$ resonance of 5.39 and 0.64 eV, respectively, which differ significantly from previously published results.