Dipole threshold laws for single and double detachment from negative ions
The threshold behavior of the cross section when electron detachment leaves behind a neutral atom (or molecule) with an electric dipole moment is derived through the formalism of quantum-defect theory. The cross section is a constant with a superimposed modulation with energy which has negligible amplitude for realistic situations such as the photodetachment of H- accompanied by excitation. The threshold behavior for double detachment is also derived on the basis of a Coulomb-dipole description of the two electrons. It is shown that no oscillations will be observed in the cross section for this process. © 1985 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review A
Greene, C., & Rau, A. (1985). Dipole threshold laws for single and double detachment from negative ions. Physical Review A, 32 (3), 1352-1356. https://doi.org/10.1103/PhysRevA.32.1352