Classical and quantal methods in atomic and molecular collisions

Dubois, Alain; Caillat, Jérémie; Hansen, J. P.; Sundvor, I.; Frémont, F.; Sobocinski, P.; Chesnel, Jean-Yves; Gayet, R.; Fu, Jun; Fitzpatrick, Mathew J.; Smith, William F.; Reading, J. F.

doi:10.1016/j.nimb.2005.07.005

Cited by 3 publications

(1 citation statement)

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“…the work of Lüdde and collaborators [26] for water molecule targets). It should be mentioned that various approximated simple models to describe single capture (and ionisation) for high impact energies have been developed, such as, for example the classical trajectory Monte Carlo (CTMC) method [27,28] or scaling rules definitions [29].…”

Section: Introductionmentioning

confidence: 99%

Nonperturbative treatment of multielectron processes in ion-molecule scattering: Application to He2+-H2collisions

2011

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We present a nonperturbative theory to describe multielectronic processes occurring in the course of collisions between an ion and a molecule. The approach is based on the expansion of the electronic scattering wave function onto asymptotic mono-or multicenter states with proper translational conditions and includes both static and dynamical electronic correlations. Therefore, it has a wide application range around intermediate impact velocitieswhere v e is the averaged electron velocity in the initial state. As a first application, we report results on single-and double-electron capture processes in He 2+ -H 2 collisions for impact energies ranging from 0.01 to 25 keV/u. Special emphasis on the prediction of cross sections for double-electron capture into doubly excited states of helium is addressed.

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