(e, 2e) spectroscopy

Looking at Molecular Orbitals in Three-Dimensional Form: From Dream to Reality

“…Thus the (e,2e) cross section can be measured as a function of q and E bind , because the energy and momentum of the incident electron are known beforehand. When the (e,2e) reaction takes place so that it is described by the binary encounter approximation, 45,53 which assumes a clean knockout, billiard-like collision between the incident electron and a bound target electron with the residual ion acting as a spectator, the initial momentum of the target electron p, before ionization, is equal in magnitude but opposite in sign to the ion recoil momentum q:…”

“…A full discussion of the scattering theory of EMS can be found in the literature, 4553 so I do not repeat those details here. Briefly, however, the triple differential cross section (TDCS) for an (e,2e) reaction is given 45,53 by…”

Plasma perspective on strong field multiphoton ionization

“…The origin of this discrepancy is unclear. It may be the result of neglecting spin correlation effects [13].…”

Calculation of (e, 2e) triple differential cross sections of Mg in coplanar geometry

“…Since the experiment of Ehrhardt et al [1] extensive studies have been performed for the electron impact single ionization of hydrogen [2] and helium [3] atoms in different geometrical arrangements. Apart from hydrogen and helium atoms, (e, 2e) studies have been performed on a number of targets using different theoretical approaches (see review articles [4][5][6][7][8]). There has been recent focus on the study of (e, 2e) process in coplanar symmetric geometry in which the incident and outgoing electrons lie in the same plane.…”