Collisional detachment in collisions ofCl−with the rare gases

Absolute total electron detachment and relative elastic differential cross sections for the scattering of${\mathrm{Cl}}^{-}$ by Ne, Ar, Kr, and Xe have been measured at energies ranging from near detachment threshold to 180 eV. The experimental results have been analyzed by using semiclassical expressions for the cross sections which involve localized complex potentials. Reasonable potentials have been deduced which yield calculated cross sections that are in good agreement with the experimental observations.