(e,3e) processes on two-electron atoms: Cusp conditions and scaling law

Autores
Ancarani, L. U.; Dal Cappello, C.; Charpentier, I.; Rodriguez, Karina Viviana; Gasaneo, Gustavo
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
Fil: Ancarani, L. U.. Université Paul Verlaine-Metz; Francia
Fil: Dal Cappello, C.. Université Paul Verlaine-Metz; Francia
Fil: Charpentier, I.. Centre National de la Recherche Scientifique; Francia
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
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
Materia
Cusp conditions
Electron impact
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/71280
Acceder
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network_name_str CONICET Digital (CONICET)
spelling (e,3e) processes on two-electron atoms: Cusp conditions and scaling lawAncarani, L. U.Dal Cappello, C.Charpentier, I.Rodriguez, Karina VivianaGasaneo, GustavoCusp conditionsElectron impacthttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We 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.Fil: Ancarani, L. U.. Université Paul Verlaine-Metz; FranciaFil: Dal Cappello, C.. Université Paul Verlaine-Metz; FranciaFil: Charpentier, I.. Centre National de la Recherche Scientifique; FranciaFil: 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; ArgentinaFil: 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; ArgentinaAmerican Physical Society2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/71280Ancarani, 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; 1-111050-2947CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pra/abstract/10.1103/PhysRevA.78.062709info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.78.062709info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:37Zoai:ri.conicet.gov.ar:11336/71280instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:36:37.599CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv (e,3e) processes on two-electron atoms: Cusp conditions and scaling law
title (e,3e) processes on two-electron atoms: Cusp conditions and scaling law
spellingShingle (e,3e) processes on two-electron atoms: Cusp conditions and scaling law
Ancarani, L. U.
Cusp conditions
Electron impact
title_short (e,3e) processes on two-electron atoms: Cusp conditions and scaling law
title_full (e,3e) processes on two-electron atoms: Cusp conditions and scaling law
title_fullStr (e,3e) processes on two-electron atoms: Cusp conditions and scaling law
title_full_unstemmed (e,3e) processes on two-electron atoms: Cusp conditions and scaling law
title_sort (e,3e) processes on two-electron atoms: Cusp conditions and scaling law
dc.creator.none.fl_str_mv Ancarani, L. U.
Dal Cappello, C.
Charpentier, I.
Rodriguez, Karina Viviana
Gasaneo, Gustavo
author Ancarani, L. U.
author_facet Ancarani, L. U.
Dal Cappello, C.
Charpentier, I.
Rodriguez, Karina Viviana
Gasaneo, Gustavo
author_role author
author2 Dal Cappello, C.
Charpentier, I.
Rodriguez, Karina Viviana
Gasaneo, Gustavo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Cusp conditions
Electron impact
topic Cusp conditions
Electron impact
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv 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.
Fil: Ancarani, L. U.. Université Paul Verlaine-Metz; Francia
Fil: Dal Cappello, C.. Université Paul Verlaine-Metz; Francia
Fil: Charpentier, I.. Centre National de la Recherche Scientifique; Francia
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
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
description 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.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/71280
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
1050-2947
CONICET Digital
CONICET
url http://hdl.handle.net/11336/71280
identifier_str_mv 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
1050-2947
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pra/abstract/10.1103/PhysRevA.78.062709
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.78.062709
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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