ELASTIC-SCATTERING OF ELECTRONS FROM CARBON-DIOXIDE

Elastic scattering of electrons from a CO2 molecule is studied theoret ically. Differential, as well as integral and momentum-transfer, cross sections are calculated at the energies 3-60 eV. The calculation is b ased on an ab initio electrostatic :potential taken with the approxima te effects of electron exchange and target polarization. The fixed-nuc lei approximation is made and the coupled channel equations are solved for partial waves. The resulting cross sections are satisfactory in t he energy range 10-60 eV, when compared with experimental data. The re sonance structure at around 4 eV is not well reproduced by the present calculation. Detailed comparisons are also made with previous theoret ical works.