Double photoionization of helium: A generalized Sturmian approach

Autores
Randazzo, Juan Martin; Mitnik, Dario Marcelo; Gasaneo, Gustavo; Ancarani, Lorenzo U.; Colavecchia, Flavio Dario
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work we study the double photoionization of helium induced by low intensities laser fields in the regime where only one photon absorption occurs. The method proposed here is based on a Generalized Sturmian Functions (GSF) spectral approach which allows the imposition of outgoing boundary conditions for both ejected electrons. These, in turn, construct an hyperspherical flux characteristic of double continuum wave functions. We compare our calculated cross sections at 20 and 40 eV above threshold with absolute and relative measurements, and with other calculations. Our results definitively demonstrate the applicability of the GSF approach for dealing with break-up Coulomb problems.
Fil: Randazzo, Juan Martin. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; 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: Gasaneo, Gustavo. Universidad Nacional del Sur. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ancarani, Lorenzo U.. Université de Lorraine; Francia
Fil: Colavecchia, Flavio Dario. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Atomic And Molecular Collisions
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:11336/54987
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Double photoionization of helium: A generalized Sturmian approachRandazzo, Juan MartinMitnik, Dario MarceloGasaneo, GustavoAncarani, Lorenzo U.Colavecchia, Flavio DarioAtomic And Molecular Collisionshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this work we study the double photoionization of helium induced by low intensities laser fields in the regime where only one photon absorption occurs. The method proposed here is based on a Generalized Sturmian Functions (GSF) spectral approach which allows the imposition of outgoing boundary conditions for both ejected electrons. These, in turn, construct an hyperspherical flux characteristic of double continuum wave functions. We compare our calculated cross sections at 20 and 40 eV above threshold with absolute and relative measurements, and with other calculations. Our results definitively demonstrate the applicability of the GSF approach for dealing with break-up Coulomb problems.Fil: Randazzo, Juan Martin. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; 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: Gasaneo, Gustavo. Universidad Nacional del Sur. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ancarani, Lorenzo U.. Université de Lorraine; FranciaFil: Colavecchia, Flavio Dario. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaSpringer2015-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/54987Randazzo, Juan Martin; Mitnik, Dario Marcelo; Gasaneo, Gustavo; Ancarani, Lorenzo U.; Colavecchia, Flavio Dario; Double photoionization of helium: A generalized Sturmian approach; Springer; European Physical Journal D; 69; 8; 8-2015; 1-101434-60601434-6079CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1140/epjd/e2015-60113-9info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1140%2Fepjd%2Fe2015-60113-9info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:27Zoai:ri.conicet.gov.ar:11336/54987instacron: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 09:46:27.766CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Double photoionization of helium: A generalized Sturmian approach
title Double photoionization of helium: A generalized Sturmian approach
spellingShingle Double photoionization of helium: A generalized Sturmian approach
Randazzo, Juan Martin
Atomic And Molecular Collisions
title_short Double photoionization of helium: A generalized Sturmian approach
title_full Double photoionization of helium: A generalized Sturmian approach
title_fullStr Double photoionization of helium: A generalized Sturmian approach
title_full_unstemmed Double photoionization of helium: A generalized Sturmian approach
title_sort Double photoionization of helium: A generalized Sturmian approach
dc.creator.none.fl_str_mv Randazzo, Juan Martin
Mitnik, Dario Marcelo
Gasaneo, Gustavo
Ancarani, Lorenzo U.
Colavecchia, Flavio Dario
author Randazzo, Juan Martin
author_facet Randazzo, Juan Martin
Mitnik, Dario Marcelo
Gasaneo, Gustavo
Ancarani, Lorenzo U.
Colavecchia, Flavio Dario
author_role author
author2 Mitnik, Dario Marcelo
Gasaneo, Gustavo
Ancarani, Lorenzo U.
Colavecchia, Flavio Dario
author2_role author
author
author
author
dc.subject.none.fl_str_mv Atomic And Molecular Collisions
topic Atomic And Molecular Collisions
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work we study the double photoionization of helium induced by low intensities laser fields in the regime where only one photon absorption occurs. The method proposed here is based on a Generalized Sturmian Functions (GSF) spectral approach which allows the imposition of outgoing boundary conditions for both ejected electrons. These, in turn, construct an hyperspherical flux characteristic of double continuum wave functions. We compare our calculated cross sections at 20 and 40 eV above threshold with absolute and relative measurements, and with other calculations. Our results definitively demonstrate the applicability of the GSF approach for dealing with break-up Coulomb problems.
Fil: Randazzo, Juan Martin. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; 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: Gasaneo, Gustavo. Universidad Nacional del Sur. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ancarani, Lorenzo U.. Université de Lorraine; Francia
Fil: Colavecchia, Flavio Dario. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description In this work we study the double photoionization of helium induced by low intensities laser fields in the regime where only one photon absorption occurs. The method proposed here is based on a Generalized Sturmian Functions (GSF) spectral approach which allows the imposition of outgoing boundary conditions for both ejected electrons. These, in turn, construct an hyperspherical flux characteristic of double continuum wave functions. We compare our calculated cross sections at 20 and 40 eV above threshold with absolute and relative measurements, and with other calculations. Our results definitively demonstrate the applicability of the GSF approach for dealing with break-up Coulomb problems.
publishDate 2015
dc.date.none.fl_str_mv 2015-08
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/11336/54987
Randazzo, Juan Martin; Mitnik, Dario Marcelo; Gasaneo, Gustavo; Ancarani, Lorenzo U.; Colavecchia, Flavio Dario; Double photoionization of helium: A generalized Sturmian approach; Springer; European Physical Journal D; 69; 8; 8-2015; 1-10
1434-6060
1434-6079
CONICET Digital
CONICET
url http://hdl.handle.net/11336/54987
identifier_str_mv Randazzo, Juan Martin; Mitnik, Dario Marcelo; Gasaneo, Gustavo; Ancarani, Lorenzo U.; Colavecchia, Flavio Dario; Double photoionization of helium: A generalized Sturmian approach; Springer; European Physical Journal D; 69; 8; 8-2015; 1-10
1434-6060
1434-6079
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1140/epjd/e2015-60113-9
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1140%2Fepjd%2Fe2015-60113-9
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 Springer
publisher.none.fl_str_mv Springer
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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