ELECTRON-DETACHMENT IN DIFFERENTIAL I- + NE CROSS-SECTION MEASUREMENTS

Differential cross sections for collisions of I- + Ne, obtained at energies between 1000 and 3000 eV, show an energy dependence of the electron-detachment process that cannot be described by means of a simple complex potential model. The probability of electron-detachment appears to be considerably smaller than that obtained for other combinations of negative halogen ions and noble gas atoms. An explanation of these phenomena may be found in a I- + Ne X 1Σ state that does not cross I + Ne + e continuum states. © 1979.