Continuum-orientation phenomena in ionization by positron impact

Autores
Fiol, Juan; Barrachina, R O
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Ionization collisions by positron impact at low and intermediate energies are investigated by means of a classical trajectory Monte Carlo (CTMC) simulation. Calculations of fully differential cross sections unveil a remarkable dynamical orientation of the electron–positron continuum dipole. Actually, by means of the CTMC simulation we show that, for electron velocities close to the final positron velocity, the dipole is narrowly oriented along the direction of motion of its centre-of-mass, with the negative charge pointing towards the residual target, i.e. emitted at lower energies than the positron. The characteristic features of this phenomenon are studied. Also, several future experiments and calculations are proposed. The possible outcomes of this further research might help to unveil the mechanisms responsible for the appearance of this orientation effect.
Fil: Fiol, Juan. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Barrachina, R O. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Materia
IONIZATION
POSITRON
ORIENTATION
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:11336/278616
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/278616
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Continuum-orientation phenomena in ionization by positron impactFiol, JuanBarrachina, R OIONIZATIONPOSITRONORIENTATIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Ionization collisions by positron impact at low and intermediate energies are investigated by means of a classical trajectory Monte Carlo (CTMC) simulation. Calculations of fully differential cross sections unveil a remarkable dynamical orientation of the electron–positron continuum dipole. Actually, by means of the CTMC simulation we show that, for electron velocities close to the final positron velocity, the dipole is narrowly oriented along the direction of motion of its centre-of-mass, with the negative charge pointing towards the residual target, i.e. emitted at lower energies than the positron. The characteristic features of this phenomenon are studied. Also, several future experiments and calculations are proposed. The possible outcomes of this further research might help to unveil the mechanisms responsible for the appearance of this orientation effect.Fil: Fiol, Juan. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Barrachina, R O. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaIOP Publishing2011-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/278616Fiol, Juan; Barrachina, R O; Continuum-orientation phenomena in ionization by positron impact; IOP Publishing; Journal of Physics B: Atomic, Molecular and Optical Physics; 44; 7; 3-2011; 75205-752140953-4075CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/0953-4075/44/7/075205info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-01-14T12:28:48Zoai:ri.conicet.gov.ar:11336/278616instacron: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:34982026-01-14 12:28:49.276CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Continuum-orientation phenomena in ionization by positron impact
title Continuum-orientation phenomena in ionization by positron impact
spellingShingle Continuum-orientation phenomena in ionization by positron impact
Fiol, Juan
IONIZATION
POSITRON
ORIENTATION
title_short Continuum-orientation phenomena in ionization by positron impact
title_full Continuum-orientation phenomena in ionization by positron impact
title_fullStr Continuum-orientation phenomena in ionization by positron impact
title_full_unstemmed Continuum-orientation phenomena in ionization by positron impact
title_sort Continuum-orientation phenomena in ionization by positron impact
dc.creator.none.fl_str_mv Fiol, Juan
Barrachina, R O
author Fiol, Juan
author_facet Fiol, Juan
Barrachina, R O
author_role author
author2 Barrachina, R O
author2_role author
dc.subject.none.fl_str_mv IONIZATION
POSITRON
ORIENTATION
topic IONIZATION
POSITRON
ORIENTATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Ionization collisions by positron impact at low and intermediate energies are investigated by means of a classical trajectory Monte Carlo (CTMC) simulation. Calculations of fully differential cross sections unveil a remarkable dynamical orientation of the electron–positron continuum dipole. Actually, by means of the CTMC simulation we show that, for electron velocities close to the final positron velocity, the dipole is narrowly oriented along the direction of motion of its centre-of-mass, with the negative charge pointing towards the residual target, i.e. emitted at lower energies than the positron. The characteristic features of this phenomenon are studied. Also, several future experiments and calculations are proposed. The possible outcomes of this further research might help to unveil the mechanisms responsible for the appearance of this orientation effect.
Fil: Fiol, Juan. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Barrachina, R O. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
description Ionization collisions by positron impact at low and intermediate energies are investigated by means of a classical trajectory Monte Carlo (CTMC) simulation. Calculations of fully differential cross sections unveil a remarkable dynamical orientation of the electron–positron continuum dipole. Actually, by means of the CTMC simulation we show that, for electron velocities close to the final positron velocity, the dipole is narrowly oriented along the direction of motion of its centre-of-mass, with the negative charge pointing towards the residual target, i.e. emitted at lower energies than the positron. The characteristic features of this phenomenon are studied. Also, several future experiments and calculations are proposed. The possible outcomes of this further research might help to unveil the mechanisms responsible for the appearance of this orientation effect.
publishDate 2011
dc.date.none.fl_str_mv 2011-03
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/11336/278616
Fiol, Juan; Barrachina, R O; Continuum-orientation phenomena in ionization by positron impact; IOP Publishing; Journal of Physics B: Atomic, Molecular and Optical Physics; 44; 7; 3-2011; 75205-75214
0953-4075
CONICET Digital
CONICET
url http://hdl.handle.net/11336/278616
identifier_str_mv Fiol, Juan; Barrachina, R O; Continuum-orientation phenomena in ionization by positron impact; IOP Publishing; Journal of Physics B: Atomic, Molecular and Optical Physics; 44; 7; 3-2011; 75205-75214
0953-4075
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-4075/44/7/075205
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
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 13.065482

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