Double ionization of helium by fast electrons with the Generalized Sturmian Functions method

Autores
Ambrosio, Marcelo José; Colavecchia, Flavio Dario; Gasaneo, Gustavo; Mitnik, Dario Marcelo; Ancarani, L. U.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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 first order driven equation is solved with a generalized Sturmian functions approach. The transition amplitude, extracted from the asymptotic limit of the first order solution, is equivalent to the familiar first Born approximation. Fivefold differential cross sections are calculated for (e, 3e) processes within the high incident energy and small momentum transfer regimes. The results are compared with other numerical methods, and with the only absolute experimental data available. Our cross sections agree in shape and magnitude with those of the convergent close coupling method for the (10+10) eV and (4+4) eV emission energies. To date this had not been achieved by any two different numerical schemes when solving the three–body continuum problem for the fast projectile (e, 3e) process. Though agreement with the experimental data, in particular with respect to the magnitude, is not achieved, our findings partly clarify a long standing puzzle.
Fil: Ambrosio, Marcelo José. Universidad Nacional del Sur. Departamento de Física; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Colavecchia, Flavio Dario. Comisión Nacional de Energíâ­a Atómica. Gerencia del Area Investigación y Aplicaciones No Nucleares. Gerencia de Física (centro Atómico Balseiro). División Colisiones Atómicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gasaneo, Gustavo. Universidad Nacional del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mitnik, Dario Marcelo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Ancarani, L. U.. Universite Paul Verlaine-metz. Institut de Physique, Chimie Et Materiaux. Laboratorie de Physique Moleculaire Et Des Collisions; Francia. Universite de Lorraine; Francia
Materia
Helium
Double Ionization
Fully Differential Cross Section
First Born Approximation
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:11336/16700
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/16700
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Double ionization of helium by fast electrons with the Generalized Sturmian Functions methodAmbrosio, Marcelo JoséColavecchia, Flavio DarioGasaneo, GustavoMitnik, Dario MarceloAncarani, L. U.HeliumDouble IonizationFully Differential Cross SectionFirst Born Approximationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The 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 first order driven equation is solved with a generalized Sturmian functions approach. The transition amplitude, extracted from the asymptotic limit of the first order solution, is equivalent to the familiar first Born approximation. Fivefold differential cross sections are calculated for (e, 3e) processes within the high incident energy and small momentum transfer regimes. The results are compared with other numerical methods, and with the only absolute experimental data available. Our cross sections agree in shape and magnitude with those of the convergent close coupling method for the (10+10) eV and (4+4) eV emission energies. To date this had not been achieved by any two different numerical schemes when solving the three–body continuum problem for the fast projectile (e, 3e) process. Though agreement with the experimental data, in particular with respect to the magnitude, is not achieved, our findings partly clarify a long standing puzzle.Fil: Ambrosio, Marcelo José. Universidad Nacional del Sur. Departamento de Física; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Colavecchia, Flavio Dario. Comisión Nacional de Energíâ­a Atómica. Gerencia del Area Investigación y Aplicaciones No Nucleares. Gerencia de Física (centro Atómico Balseiro). División Colisiones Atómicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gasaneo, Gustavo. Universidad Nacional del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Mitnik, Dario Marcelo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Ancarani, L. U.. Universite Paul Verlaine-metz. Institut de Physique, Chimie Et Materiaux. Laboratorie de Physique Moleculaire Et Des Collisions; Francia. Universite de Lorraine; FranciaIop Publishing2015-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/16700Ambrosio, Marcelo José; Colavecchia, Flavio Dario; Gasaneo, Gustavo; Mitnik, Dario Marcelo; Ancarani, L. U.; Double ionization of helium by fast electrons with the Generalized Sturmian Functions method; Iop Publishing; Journal Of Physics B: Atomic, Molecular And Optical Physics; 48; 2-2015; 55204, 1-130953-4075enginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/0953-4075/48/5/055204/info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-4075/48/5/055204info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:50:50Zoai:ri.conicet.gov.ar:11336/16700instacron: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:34982025-09-03 09:50:51.033CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Double ionization of helium by fast electrons with the Generalized Sturmian Functions method
title Double ionization of helium by fast electrons with the Generalized Sturmian Functions method
spellingShingle Double ionization of helium by fast electrons with the Generalized Sturmian Functions method
Ambrosio, Marcelo José
Helium
Double Ionization
Fully Differential Cross Section
First Born Approximation
title_short Double ionization of helium by fast electrons with the Generalized Sturmian Functions method
title_full Double ionization of helium by fast electrons with the Generalized Sturmian Functions method
title_fullStr Double ionization of helium by fast electrons with the Generalized Sturmian Functions method
title_full_unstemmed Double ionization of helium by fast electrons with the Generalized Sturmian Functions method
title_sort Double ionization of helium by fast electrons with the Generalized Sturmian Functions method
dc.creator.none.fl_str_mv Ambrosio, Marcelo José
Colavecchia, Flavio Dario
Gasaneo, Gustavo
Mitnik, Dario Marcelo
Ancarani, L. U.
author Ambrosio, Marcelo José
author_facet Ambrosio, Marcelo José
Colavecchia, Flavio Dario
Gasaneo, Gustavo
Mitnik, Dario Marcelo
Ancarani, L. U.
author_role author
author2 Colavecchia, Flavio Dario
Gasaneo, Gustavo
Mitnik, Dario Marcelo
Ancarani, L. U.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Helium
Double Ionization
Fully Differential Cross Section
First Born Approximation
topic Helium
Double Ionization
Fully Differential Cross Section
First Born Approximation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv 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 first order driven equation is solved with a generalized Sturmian functions approach. The transition amplitude, extracted from the asymptotic limit of the first order solution, is equivalent to the familiar first Born approximation. Fivefold differential cross sections are calculated for (e, 3e) processes within the high incident energy and small momentum transfer regimes. The results are compared with other numerical methods, and with the only absolute experimental data available. Our cross sections agree in shape and magnitude with those of the convergent close coupling method for the (10+10) eV and (4+4) eV emission energies. To date this had not been achieved by any two different numerical schemes when solving the three–body continuum problem for the fast projectile (e, 3e) process. Though agreement with the experimental data, in particular with respect to the magnitude, is not achieved, our findings partly clarify a long standing puzzle.
Fil: Ambrosio, Marcelo José. Universidad Nacional del Sur. Departamento de Física; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Colavecchia, Flavio Dario. Comisión Nacional de Energíâ­a Atómica. Gerencia del Area Investigación y Aplicaciones No Nucleares. Gerencia de Física (centro Atómico Balseiro). División Colisiones Atómicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gasaneo, Gustavo. Universidad Nacional del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mitnik, Dario Marcelo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Ancarani, L. U.. Universite Paul Verlaine-metz. Institut de Physique, Chimie Et Materiaux. Laboratorie de Physique Moleculaire Et Des Collisions; Francia. Universite de Lorraine; Francia
description 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 first order driven equation is solved with a generalized Sturmian functions approach. The transition amplitude, extracted from the asymptotic limit of the first order solution, is equivalent to the familiar first Born approximation. Fivefold differential cross sections are calculated for (e, 3e) processes within the high incident energy and small momentum transfer regimes. The results are compared with other numerical methods, and with the only absolute experimental data available. Our cross sections agree in shape and magnitude with those of the convergent close coupling method for the (10+10) eV and (4+4) eV emission energies. To date this had not been achieved by any two different numerical schemes when solving the three–body continuum problem for the fast projectile (e, 3e) process. Though agreement with the experimental data, in particular with respect to the magnitude, is not achieved, our findings partly clarify a long standing puzzle.
publishDate 2015
dc.date.none.fl_str_mv 2015-02
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/11336/16700
Ambrosio, Marcelo José; Colavecchia, Flavio Dario; Gasaneo, Gustavo; Mitnik, Dario Marcelo; Ancarani, L. U.; Double ionization of helium by fast electrons with the Generalized Sturmian Functions method; Iop Publishing; Journal Of Physics B: Atomic, Molecular And Optical Physics; 48; 2-2015; 55204, 1-13
0953-4075
url http://hdl.handle.net/11336/16700
identifier_str_mv Ambrosio, Marcelo José; Colavecchia, Flavio Dario; Gasaneo, Gustavo; Mitnik, Dario Marcelo; Ancarani, L. U.; Double ionization of helium by fast electrons with the Generalized Sturmian Functions method; Iop Publishing; Journal Of Physics B: Atomic, Molecular And Optical Physics; 48; 2-2015; 55204, 1-13
0953-4075
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/0953-4075/48/5/055204/
info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-4075/48/5/055204
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Iop Publishing
publisher.none.fl_str_mv Iop Publishing
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 13.13397

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