Evidence for a shake-off mechanism being responsible for electron-impact double-ionization of argon at 5.5 keV
B El Marji; A Lahmam-Bennani; A Duguet; T J Reddish; B El Marji; Laboratoire des Collisions Atomiques et Moliculaires (unité de recherches associée au CNRS 281), Université de Paris-Sud, Bât. 351, 91405 Orsay Cedex, France; A Lahmam-Bennani; Laboratoire des Collisions Atomiques et Moliculaires (unité de recherches associée au CNRS 281), Université de Paris-Sud, Bât. 351, 91405 Orsay Cedex, France; A Duguet; Laboratoire des Collisions Atomiques et Moliculaires (unité de recherches associée au CNRS 281), Université de Paris-Sud, Bât. 351, 91405 Orsay Cedex, France; T J Reddish; Laboratoire des Collisions Atomiques et Moliculaires (unité de recherches associée au CNRS 281), Université de Paris-Sud, Bât. 351, 91405 Orsay Cedex, France
Журнал:
Journal of Physics B: Atomic, Molecular and Optical Physics
Дата:
1996-03-14
Аннотация:
Results of an argon e, (3 - 1)e double-ionization experiment with an incident energy of 5.5 keV are presented. The two emitted electrons, with energies of 96 and 17.5 eV, are observed in coincidence, and several angular distributions were measured simultaneously using a dual-position multidetection system. The observations provide clear indication for a shake-off mechanism being responsible of the double-ionization process under the kinematics considered.
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