Nonperturbative treatment of the screened-Coulomb contribution of projectile-electron loss

Detalhes bibliográficos
Autor(a) principal: Grande, Pedro Luis
Data de Publicação: 1996
Outros Autores: Schiwietz, Gregor, Sigaud, Geraldo M., Montenegro, Eduardo C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/27473
Resumo: The electron-loss cross section of He+ ions impinging upon noble-gas targets (2≤Z2≤36) is calculated by using the coupled-channel method for the active projectile electron in the static screened field of the target atom. The calculations show a saturation of the projectile-electron-loss cross section with increasing target atomic number. This saturation effect due to neutral target systems is much more pronounced than for ionization or excitation by charged particles. Comparison with experimental data indicates a small electron-loss contribution from electron-electron interaction processes for heavy targets at intermediate velocities. Remaining discrepancies in the data are discussed in the light of the approximations involved in our theoretical treatment.
id UFRGS-2_169580e4b84a67be8f4a055ff2459616
oai_identifier_str oai:www.lume.ufrgs.br:10183/27473
network_acronym_str UFRGS-2
network_name_str Repositório Institucional da UFRGS
repository_id_str
spelling Grande, Pedro LuisSchiwietz, GregorSigaud, Geraldo M.Montenegro, Eduardo C.2011-01-22T05:59:05Z19961050-2947http://hdl.handle.net/10183/27473000178115The electron-loss cross section of He+ ions impinging upon noble-gas targets (2≤Z2≤36) is calculated by using the coupled-channel method for the active projectile electron in the static screened field of the target atom. The calculations show a saturation of the projectile-electron-loss cross section with increasing target atomic number. This saturation effect due to neutral target systems is much more pronounced than for ionization or excitation by charged particles. Comparison with experimental data indicates a small electron-loss contribution from electron-electron interaction processes for heavy targets at intermediate velocities. Remaining discrepancies in the data are discussed in the light of the approximations involved in our theoretical treatment.application/pdfengPhysical review. A, Atomic, molecular, and optical physics. New York. Vol. 54, no. 4 (Oct. 1996), p. 2983-2990Física da matéria condensadaIonizacao de atomosNonperturbative treatment of the screened-Coulomb contribution of projectile-electron lossEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000178115.pdf000178115.pdfTexto completo (inglês)application/pdf735171http://www.lume.ufrgs.br/bitstream/10183/27473/1/000178115.pdf4f93bd4fc5ceeccb868b09d5f66ef151MD51TEXT000178115.pdf.txt000178115.pdf.txtExtracted Texttext/plain33783http://www.lume.ufrgs.br/bitstream/10183/27473/2/000178115.pdf.txt27c4cd60328bf32ff759651dc4e864ccMD52THUMBNAIL000178115.pdf.jpg000178115.pdf.jpgGenerated Thumbnailimage/jpeg2066http://www.lume.ufrgs.br/bitstream/10183/27473/3/000178115.pdf.jpgf72946ee1ce17c5e14bcb364f2132d69MD5310183/274732024-06-05 06:51:07.201309oai:www.lume.ufrgs.br:10183/27473Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-06-05T09:51:07Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Nonperturbative treatment of the screened-Coulomb contribution of projectile-electron loss
title Nonperturbative treatment of the screened-Coulomb contribution of projectile-electron loss
spellingShingle Nonperturbative treatment of the screened-Coulomb contribution of projectile-electron loss
Grande, Pedro Luis
Física da matéria condensada
Ionizacao de atomos
title_short Nonperturbative treatment of the screened-Coulomb contribution of projectile-electron loss
title_full Nonperturbative treatment of the screened-Coulomb contribution of projectile-electron loss
title_fullStr Nonperturbative treatment of the screened-Coulomb contribution of projectile-electron loss
title_full_unstemmed Nonperturbative treatment of the screened-Coulomb contribution of projectile-electron loss
title_sort Nonperturbative treatment of the screened-Coulomb contribution of projectile-electron loss
author Grande, Pedro Luis
author_facet Grande, Pedro Luis
Schiwietz, Gregor
Sigaud, Geraldo M.
Montenegro, Eduardo C.
author_role author
author2 Schiwietz, Gregor
Sigaud, Geraldo M.
Montenegro, Eduardo C.
author2_role author
author
author
dc.contributor.author.fl_str_mv Grande, Pedro Luis
Schiwietz, Gregor
Sigaud, Geraldo M.
Montenegro, Eduardo C.
dc.subject.por.fl_str_mv Física da matéria condensada
Ionizacao de atomos
topic Física da matéria condensada
Ionizacao de atomos
description The electron-loss cross section of He+ ions impinging upon noble-gas targets (2≤Z2≤36) is calculated by using the coupled-channel method for the active projectile electron in the static screened field of the target atom. The calculations show a saturation of the projectile-electron-loss cross section with increasing target atomic number. This saturation effect due to neutral target systems is much more pronounced than for ionization or excitation by charged particles. Comparison with experimental data indicates a small electron-loss contribution from electron-electron interaction processes for heavy targets at intermediate velocities. Remaining discrepancies in the data are discussed in the light of the approximations involved in our theoretical treatment.
publishDate 1996
dc.date.issued.fl_str_mv 1996
dc.date.accessioned.fl_str_mv 2011-01-22T05:59:05Z
dc.type.driver.fl_str_mv Estrangeiro
info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/27473
dc.identifier.issn.pt_BR.fl_str_mv 1050-2947
dc.identifier.nrb.pt_BR.fl_str_mv 000178115
identifier_str_mv 1050-2947
000178115
url http://hdl.handle.net/10183/27473
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Physical review. A, Atomic, molecular, and optical physics. New York. Vol. 54, no. 4 (Oct. 1996), p. 2983-2990
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
bitstream.url.fl_str_mv http://www.lume.ufrgs.br/bitstream/10183/27473/1/000178115.pdf
http://www.lume.ufrgs.br/bitstream/10183/27473/2/000178115.pdf.txt
http://www.lume.ufrgs.br/bitstream/10183/27473/3/000178115.pdf.jpg
bitstream.checksum.fl_str_mv 4f93bd4fc5ceeccb868b09d5f66ef151
27c4cd60328bf32ff759651dc4e864cc
f72946ee1ce17c5e14bcb364f2132d69
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)
repository.mail.fl_str_mv
_version_ 1815447421963993088

Registros relacionados