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CDW and CDW-EIS investigations in an independent electron approximation for the resonant double electron capture by swift He2+ in helium
Authors:R. Gayet  J. Hanssen  A. Martinez  R. Rivarola
Affiliation:1. Laboratoire des Collisions Atomiques, Université Bordeaux I, F-33405, Talence Cedex, France
2. Instituto de Fisica Rosario, Consejo Nacional de Investigaciones Cientificas, y Técnicas and Universidad Nacional de Rosario, Avenida Pellegrini 250, 2000, Rosario, Argentina
Abstract:
The CDW and CDW-EIS approximations are used to study the resonant double electron capture by He2+ in helium at intermediate and high impact velocities. Calculations of the total cross sections as a function of the impact energy are performed in an Independent Electron Approximation. A very good agreement with recent experimental data for capture into all states of the projectile is found although neither angular nor dynamical electron correlations are included in the calculations.
Keywords:
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