Partitioning of Momentum in Electron-Impact Double Ionization
A complete description of electron-impact double ionization requires the determination of the momenta of the scattered projectile and two ejected electrons. The experiment is referred to as (e,3e) implying a collision in which an incident electron gives rise to three electrons that are detected in coincidence. The cross section for a given incident-electron energy and a specified final state of the doubly-charge ion is eightfold differential and is typically reported as a function of the solid angle of acceptance of the detectors of the three outgoing electrons and the energy bandpass of two of these detectors (the energy of the third electron being fixed by conservation of energy).
KeywordsIncident Electron Ionic Core Double Ionization Recoil Momentum Outgoing Electron
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