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dc.contributor.author
Ancarani, L. U.
dc.contributor.author
Dal Cappello, C.
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Charpentier, I.
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Rodriguez, Karina Viviana
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Gasaneo, Gustavo
dc.date.available
2019-03-08T20:02:16Z
dc.date.issued
2008-12
dc.identifier.citation
Ancarani, L. U.; Dal Cappello, C.; Charpentier, I.; Rodriguez, Karina Viviana; Gasaneo, Gustavo; (e,3e) processes on two-electron atoms: Cusp conditions and scaling law; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 78; 6; 12-2008; 1-11
dc.identifier.issn
1050-2947
dc.identifier.uri
http://hdl.handle.net/11336/71280
dc.description.abstract
We study the double ionization by electron impact of the ground state of heliumlike atoms and propose a scaling law for fully differential (e,3e) cross sections. Within the first Born approximation, cross sections are calculated with a three-body Coulomb (3C) double-continuum wave function and initial states represented by highly accurate wave functions, which satisfy all two-body Kato cusp conditions. We first consider the helium atom in the kinematical and geometrical conditions of the only absolute, high incident energy, experimental data available: our calculations confirm unambiguously that satisfying or not Kato cusp conditions is not a relevant feature of the ground state. Other heliumlike atoms are then considered. Under similar conditions, cross sections for H- are much larger than for helium while the reverse is true for positive ions; a comparison with the rare other theoretical calculations is performed. Finally, within our theoretical framework, we propose an approximate scaling law for (e,3e) cross sections for heliumlike positive ions, and confirm it by calculations. © 2008 The American Physical Society.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Cusp Conditions
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Electron Impact
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
(e,3e) processes on two-electron atoms: Cusp conditions and scaling law
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-02-12T14:28:46Z
dc.journal.volume
78
dc.journal.number
6
dc.journal.pagination
1-11
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Ancarani, L. U.. Université Paul Verlaine-Metz; Francia
dc.description.fil
Fil: Dal Cappello, C.. Université Paul Verlaine-Metz; Francia
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Fil: Charpentier, I.. Centre National de la Recherche Scientifique; Francia
dc.description.fil
Fil: Rodriguez, Karina Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
dc.description.fil
Fil: Gasaneo, Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
dc.journal.title
Physical Review A: Atomic, Molecular and Optical Physics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pra/abstract/10.1103/PhysRevA.78.062709
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1103/PhysRevA.78.062709
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