ANGULAR-DISTRIBUTIONS FOR ELECTRON-HYDROGEN SCATTERING IN A CO2-LASERFIELD

The R-matrix Floquet theory is applied to the study of electron-hydrog en scattering in the presence of a CO2 laser field. One-electron model s are first considered in which the target is represented by a potenti al. Results are also presented for an explicit two-electron calculatio n, including 1s, (2) over bar s and (2) over bar p orbitals of hydroge n. Angular distributions are in fairly good agreement with those of th e low-frequency approximation, even when the momentum transfer is almo st perpendicular to the polarization of the field.