CROSS-SECTIONS OF E--O SCATTERING AT INTERMEDIATE AND HIGH-ENERGIES (E(I) = 8.7-1000 EV)

Various total cross sections and elastic differential as well as momen tum-transfer cross sections for electron scattering by oxygen atoms ar e calculated for incident energies E(i)=8.7-1000 eV. A partial-wave an alysis of the local, complex, energy-dependent optical potential yield s reliable total cross sections. Discrepancies between theories and ex periment exist at low energies, but a reasonable energy-variation pict ure of various e--O cross sections emerges. The present total inelasti c cross sections are similar to but higher than the recommended total ionization cross sections.