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Gasaneo, G.; Mitnik, D.M.; Randazzo, J.M.; Ancarani, L.U.; Colavecchia, F.D. "S-model calculations for high-energy-electron-impact double ionization of helium" (2013) Physical Review A - Atomic, Molecular, and Optical Physics. 87(4)
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Abstract:

In this paper the double ionization of helium by high-energy electron impact is studied. The corresponding four-body Schrödinger equation is transformed into a set of driven equations containing successive orders in the projectile-target interaction. The transition amplitude obtained from the asymptotic limit of the first-order solution is shown to be equivalent to the familiar first Born approximation. The first-order driven equation is solved within a generalized Sturmian approach for an S-wave (e,3e) model process with high incident energy and small momentum transfer corresponding to published measurements. Two independent numerical implementations, one using spherical and the other hyperspherical coordinates, yield mutual agreement. From our ab initio solution, the transition amplitude is extracted, and single differential cross sections are calculated and could be taken as benchmark values to test other numerical methods in a previously unexplored energy domain. © 2013 American Physical Society.

Registro:

Documento: Artículo
Título:S-model calculations for high-energy-electron-impact double ionization of helium
Autor:Gasaneo, G.; Mitnik, D.M.; Randazzo, J.M.; Ancarani, L.U.; Colavecchia, F.D.
Filiación:Departamento de Física, Universidad Nacional Del sur, 8000 Bahía Blanca, Buenos Aires, Argentina
Instituto de Astronomía y Física Del Espacio, FCEyN Universidad de Buenos Aires, Argentina
División Física Atómica, Molecular y Óptica, Centro Atómico Bariloche, 8400 S. C. de Bariloche, Río Negro, Argentina
Theorie, Modélisation, Simulation, SRSMC, Université de Lorraine, 57078 Metz, France
Palabras clave:Double ionization; First Born approximation; High-energy electron; Hyperspherical coordinates; Numerical implementation; Projectile target interaction; Single-differential cross sections; Transition amplitudes; Calculations; Helium; Impact ionization
Año:2013
Volumen:87
Número:4
DOI: http://dx.doi.org/10.1103/PhysRevA.87.042707
Título revista:Physical Review A - Atomic, Molecular, and Optical Physics
Título revista abreviado:Phys Rev A
ISSN:10502947
CODEN:PLRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v87_n4_p_Gasaneo

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Citas:

---------- APA ----------
Gasaneo, G., Mitnik, D.M., Randazzo, J.M., Ancarani, L.U. & Colavecchia, F.D. (2013) . S-model calculations for high-energy-electron-impact double ionization of helium. Physical Review A - Atomic, Molecular, and Optical Physics, 87(4).
http://dx.doi.org/10.1103/PhysRevA.87.042707
---------- CHICAGO ----------
Gasaneo, G., Mitnik, D.M., Randazzo, J.M., Ancarani, L.U., Colavecchia, F.D. "S-model calculations for high-energy-electron-impact double ionization of helium" . Physical Review A - Atomic, Molecular, and Optical Physics 87, no. 4 (2013).
http://dx.doi.org/10.1103/PhysRevA.87.042707
---------- MLA ----------
Gasaneo, G., Mitnik, D.M., Randazzo, J.M., Ancarani, L.U., Colavecchia, F.D. "S-model calculations for high-energy-electron-impact double ionization of helium" . Physical Review A - Atomic, Molecular, and Optical Physics, vol. 87, no. 4, 2013.
http://dx.doi.org/10.1103/PhysRevA.87.042707
---------- VANCOUVER ----------
Gasaneo, G., Mitnik, D.M., Randazzo, J.M., Ancarani, L.U., Colavecchia, F.D. S-model calculations for high-energy-electron-impact double ionization of helium. Phys Rev A. 2013;87(4).
http://dx.doi.org/10.1103/PhysRevA.87.042707