Low-Energy Electron Scattering from Strongly Polar Molecules. III. Close-Coupling Calculation for CsF

Abstract

The close-coupling calculation is made to obtain rotational excitation cross sections in e-CsF collisions. The result is compared with the Glauber and the adiabatic calculations and the validity of the latter two approximate methods is quantitatively tested. The Glauber theory is found to be quite good for small-angle scattering. The accurate adiabatic treatment is less satisfactory, though being much better than the Born calculation. Effects of the interactions other than the dipole one are investigated. Scattering for large angles (\gtrsim60°) and, hence, momentum-transfer cross sections are rather strongly affected by the shorter-ranged interactions. Finally, the cross section calculated for the rotational transition 1→2 is compared with the result of the recent measurement.