Coherent electron emission from O2 in collisions with fast electrons

Autores
Chowdhury, Madhusree Roy; Stia, Carlos Raul; Tachino, Carmen Alejandra; Fojon, Omar Ariel; Rivarola, Roberto Daniel; Tribedi, Lokesh C.
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Abstract: Absolute double differential cross sections (DDCS) of secondary electrons emitted in ionization of O2 by fast electrons have been measured for different emission angles. Theoretical calculations of atomic DDCS were obtained using the first Born approximation with an asymptotic charge of ZT = 1. The measured molecular DDCS were divided by twice the theoretical atomic DDCS to detect the presence of interference effects which was the aim of the experiment. The experimental to theoretical DDCS ratios showed clear signature of first order interference oscillation for all emission angles. The ratios were fitted by a first order Cohen-Fano type model. The variation of the oscillation amplitudes as a function of the electron emission angle showed a parabolic behaviour which goes through a minimum at 90°. The single differential and total ionization cross sections have also been deduced, besides the KLL Auger cross sections. In order to make a comparative study, we have discussed these results along with our recent experimental data obtained for N2 molecule. Graphical abstract: [Figure not available: see fulltext.].
Fil: Chowdhury, Madhusree Roy. Tata Institute of Fundamental Research; India
Fil: Stia, Carlos Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Tachino, Carmen Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Fojon, Omar Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Rivarola, Roberto Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Tribedi, Lokesh C.. Tata Institute of Fundamental Research; India
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:11336/50406
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Coherent electron emission from O2 in collisions with fast electronsChowdhury, Madhusree RoyStia, Carlos RaulTachino, Carmen AlejandraFojon, Omar ArielRivarola, Roberto DanielTribedi, Lokesh C.Atomic And Molecular Collisionshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Abstract: Absolute double differential cross sections (DDCS) of secondary electrons emitted in ionization of O2 by fast electrons have been measured for different emission angles. Theoretical calculations of atomic DDCS were obtained using the first Born approximation with an asymptotic charge of ZT = 1. The measured molecular DDCS were divided by twice the theoretical atomic DDCS to detect the presence of interference effects which was the aim of the experiment. The experimental to theoretical DDCS ratios showed clear signature of first order interference oscillation for all emission angles. The ratios were fitted by a first order Cohen-Fano type model. The variation of the oscillation amplitudes as a function of the electron emission angle showed a parabolic behaviour which goes through a minimum at 90°. The single differential and total ionization cross sections have also been deduced, besides the KLL Auger cross sections. In order to make a comparative study, we have discussed these results along with our recent experimental data obtained for N2 molecule. Graphical abstract: [Figure not available: see fulltext.].Fil: Chowdhury, Madhusree Roy. Tata Institute of Fundamental Research; IndiaFil: Stia, Carlos Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; ArgentinaFil: Tachino, Carmen Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; ArgentinaFil: Fojon, Omar Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; ArgentinaFil: Rivarola, Roberto Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; ArgentinaFil: Tribedi, Lokesh C.. Tata Institute of Fundamental Research; IndiaSpringer2017-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/50406Chowdhury, Madhusree Roy; Stia, Carlos Raul; Tachino, Carmen Alejandra; Fojon, Omar Ariel; Rivarola, Roberto Daniel; et al.; Coherent electron emission from O2 in collisions with fast electrons; Springer; European Physical Journal D; 71; 8; 8-2017; 218-2181434-6060CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1140/epjd/e2017-70763-0info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1140%2Fepjd%2Fe2017-70763-0info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:57:46Zoai:ri.conicet.gov.ar:11336/50406instacron: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 09:57:46.593CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Coherent electron emission from O2 in collisions with fast electrons
title Coherent electron emission from O2 in collisions with fast electrons
spellingShingle Coherent electron emission from O2 in collisions with fast electrons
Chowdhury, Madhusree Roy
Atomic And Molecular Collisions
title_short Coherent electron emission from O2 in collisions with fast electrons
title_full Coherent electron emission from O2 in collisions with fast electrons
title_fullStr Coherent electron emission from O2 in collisions with fast electrons
title_full_unstemmed Coherent electron emission from O2 in collisions with fast electrons
title_sort Coherent electron emission from O2 in collisions with fast electrons
dc.creator.none.fl_str_mv Chowdhury, Madhusree Roy
Stia, Carlos Raul
Tachino, Carmen Alejandra
Fojon, Omar Ariel
Rivarola, Roberto Daniel
Tribedi, Lokesh C.
author Chowdhury, Madhusree Roy
author_facet Chowdhury, Madhusree Roy
Stia, Carlos Raul
Tachino, Carmen Alejandra
Fojon, Omar Ariel
Rivarola, Roberto Daniel
Tribedi, Lokesh C.
author_role author
author2 Stia, Carlos Raul
Tachino, Carmen Alejandra
Fojon, Omar Ariel
Rivarola, Roberto Daniel
Tribedi, Lokesh C.
author2_role author
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 Abstract: Absolute double differential cross sections (DDCS) of secondary electrons emitted in ionization of O2 by fast electrons have been measured for different emission angles. Theoretical calculations of atomic DDCS were obtained using the first Born approximation with an asymptotic charge of ZT = 1. The measured molecular DDCS were divided by twice the theoretical atomic DDCS to detect the presence of interference effects which was the aim of the experiment. The experimental to theoretical DDCS ratios showed clear signature of first order interference oscillation for all emission angles. The ratios were fitted by a first order Cohen-Fano type model. The variation of the oscillation amplitudes as a function of the electron emission angle showed a parabolic behaviour which goes through a minimum at 90°. The single differential and total ionization cross sections have also been deduced, besides the KLL Auger cross sections. In order to make a comparative study, we have discussed these results along with our recent experimental data obtained for N2 molecule. Graphical abstract: [Figure not available: see fulltext.].
Fil: Chowdhury, Madhusree Roy. Tata Institute of Fundamental Research; India
Fil: Stia, Carlos Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Tachino, Carmen Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Fojon, Omar Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Rivarola, Roberto Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Tribedi, Lokesh C.. Tata Institute of Fundamental Research; India
description Abstract: Absolute double differential cross sections (DDCS) of secondary electrons emitted in ionization of O2 by fast electrons have been measured for different emission angles. Theoretical calculations of atomic DDCS were obtained using the first Born approximation with an asymptotic charge of ZT = 1. The measured molecular DDCS were divided by twice the theoretical atomic DDCS to detect the presence of interference effects which was the aim of the experiment. The experimental to theoretical DDCS ratios showed clear signature of first order interference oscillation for all emission angles. The ratios were fitted by a first order Cohen-Fano type model. The variation of the oscillation amplitudes as a function of the electron emission angle showed a parabolic behaviour which goes through a minimum at 90°. The single differential and total ionization cross sections have also been deduced, besides the KLL Auger cross sections. In order to make a comparative study, we have discussed these results along with our recent experimental data obtained for N2 molecule. Graphical abstract: [Figure not available: see fulltext.].
publishDate 2017
dc.date.none.fl_str_mv 2017-08
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/11336/50406
Chowdhury, Madhusree Roy; Stia, Carlos Raul; Tachino, Carmen Alejandra; Fojon, Omar Ariel; Rivarola, Roberto Daniel; et al.; Coherent electron emission from O2 in collisions with fast electrons; Springer; European Physical Journal D; 71; 8; 8-2017; 218-218
1434-6060
CONICET Digital
CONICET
url http://hdl.handle.net/11336/50406
identifier_str_mv Chowdhury, Madhusree Roy; Stia, Carlos Raul; Tachino, Carmen Alejandra; Fojon, Omar Ariel; Rivarola, Roberto Daniel; et al.; Coherent electron emission from O2 in collisions with fast electrons; Springer; European Physical Journal D; 71; 8; 8-2017; 218-218
1434-6060
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/e2017-70763-0
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1140%2Fepjd%2Fe2017-70763-0
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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
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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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