Analytical models proposed to represent the two-electron continuum are revisited. Main results obtained with these models are summarized. Recent studies of the photo-double-ionization (PDI) of the He-isoelectronic sequence by means of the recently introduced SC3 model are shown and compared with the results predicted by classical and semi-classical Wannier approaches. By fitting the triply differential cross sections (TDCSs) with the usual dipolar Gaussian form we find that the width has a power dependence on excess energy with exponent 0.25 in the near threshold region and departs from this law with increasing energy
S. Otranto and C. R. Garibotti, "Kinetic Correlation in Photo-double-ionization Processes: The He-isoelectronic Sequence," AIP Conference Proceedings, American Institute of Physics (AIP), Jan 2006.
The definitive version is available at http://dx.doi.org/10.1063/1.2165616
Keywords and Phrases
Atom-Photon Collisions; Helium; Photoionisation
Article - Conference proceedings
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