A new theoretical approach to (e,2e) and (e,3e) processes

A new theoretical approach to (e,2e) and (e,3e) processes

A new version of the J-matrix method is formulated for describing the (e; 2e) and (e; 3e) scattering of a fast projectile electron on a helium atom. The derived three-body final state wave function exactly satisfies two-body boundary conditions when one ejected electron is at large distances from wh...

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Veröffentlicht in:Journal of physics. Conference series 2008-11, Vol.141 (1), p.012008
Hauptverfasser: Knyr, V A, Zaytsev, S A, Popov, Yu V, Lahmam-Bennani, A
Format: Artikel
Sprache:eng
Schlagworte:
Boundary conditions
Helium atoms
Physics
Projectiles
Wave functions
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Beschreibung
Zusammenfassung:A new version of the J-matrix method is formulated for describing the (e; 2e) and (e; 3e) scattering of a fast projectile electron on a helium atom. The derived three-body final state wave function exactly satisfies two-body boundary conditions when one ejected electron is at large distances from while the other is close to the nucleus. The obtained results for differential cross sections of the He(e; 2e)He+ and He(e; 3e)He++ reactions are in a good agreement with experiment both in shape and absolute value.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/141/1/012008