Studies of differential and total photoionization cross sections of carbon dioxide Academic Article uri icon


  • The photoionization of CO2 has been studied using accurate frozen-core Hartree-Fock final-state wave functions. The Hartree-Fock continuum equations were solved using the iterative Schwinger variational method. We present differential and total cross sections for photoionization leading to the X g2, A u2, B u+2, and C g+2, states of CO2+ as well as for oxygen and carbon K-shell photoionization. The present cross sections are compared to experimental data and are found to be in generally good agreement. The theoretical cross sections exhibit features due to a narrow shape resonance in those channels where the continuum wave functions have u symmetry. The relation between these results and experimental cross sections is discussed. The present fixed-nuclei results have also been compared to published theoretical results obtained using the Stieltjes-Tchebycheff moment theory approach and the continuum multiple-scattering method. 1982 The American Physical Society.

published proceedings

  • Physical Review A

author list (cited authors)

  • Lucchese, R. R., & McKoy, V.

citation count

  • 79

complete list of authors

  • Lucchese, Robert R||McKoy, Vincent

publication date

  • September 1982