Theoretical calculation of cross sections for rotational excitation ine-CO2scattering

Rotational excitation cross sections for $e$-C${\mathrm{O}}_2$ scattering in the energy range from 0.07 to 10.0 eV have been calculated using a coupled-channels procedure together with the adiabatic-nuclei (impulse) approximation. Results are presented for excitation from $j=0\mathrm{}$ to $j^{\prime }=0, 2, \mathrm{and} 4$. Cross sections for $j=0\mathrm{}$ to $j^{\prime }=2\mathrm{}$ in $e$-C${\mathrm{O}}_2$ scattering are compared with corresponding results for $e$-${\mathrm{H}}_2$ and $e$-${\mathrm{N}}_2$ collisions. The Born approximation for rotational excitation is examined for this problem and found to be unsatisfactory even at the lowest energies studied. Results for large initial rotational quantum number $j$ are presented and discussed.