IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
artículos
Título:
Generalized Sturmian Functions applied to double continuum problems
Autor/es:
AMBROSIO, MARCELO JOSÉ; COLAVECCHIA, FLAVIO; MITNIK, DARÍO; GASANEO, GUSTAVO; ANCARANI, LORENZO UGO
Revista:
Journal of Physics: Conference Series
Editorial:
IOP Publishing (UK)
Referencias:
Lugar: Londres; Año: 2015 vol. 601
ISSN:
1742-6588
Resumen:
The Generalized Sturmian Functions method aims to deal with atomic physics
problems. It has seen application to two and three?body problems, and its flexibility enables
one to work with bound systems as well as with particles in the continuum. In the present
contribution we analyze how the method expands the atomic double continuum in collision
problems, using the double ionization of Helium by fast electrons as a showcase. We first test
the robustness of the method in a particularly challenging situation, the zero energy case. We
then present fully differential cross sections for a scattering problem which after 15 years of
continued efforts has not been satisfactorily solved: the double ionization of Helium by electron
impact in the fast projectile regime, as measured by the Orsay group.