Schematic coupled-channel calculations for nuclear reactions with unstable beams

Detalhes bibliográficos
Autor(a) principal: Cárdenas,W.H.Z.
Data de Publicação: 2004
Outros Autores: Canto,L.F., Donangelo,R., Carlin,N., Hussein,M.S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000600017
Resumo: We study nuclear reactions in collisions of unstable projectiles with heavy targets. For this purpose, we use a simple approximation for the breakup channel and treat two-neutron halos as a single particle. We then evaluate cross sections for collisions of 6He projectiles with targets of 238U and 209Bi. Comparing our results with recently measured fusion cross sections, we conclude that the large enhancement observed in 6He+238U fusion at sub-barrier energies cannot be explained by the coupling with the breakup channel. The effects of the halo on other reaction channels are also investigated. Coulomb-nuclear interference in the breakup channel is discussed.
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spelling Schematic coupled-channel calculations for nuclear reactions with unstable beamsWe study nuclear reactions in collisions of unstable projectiles with heavy targets. For this purpose, we use a simple approximation for the breakup channel and treat two-neutron halos as a single particle. We then evaluate cross sections for collisions of 6He projectiles with targets of 238U and 209Bi. Comparing our results with recently measured fusion cross sections, we conclude that the large enhancement observed in 6He+238U fusion at sub-barrier energies cannot be explained by the coupling with the breakup channel. The effects of the halo on other reaction channels are also investigated. Coulomb-nuclear interference in the breakup channel is discussed.Sociedade Brasileira de Física2004-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000600017Brazilian Journal of Physics v.34 n.3b 2004reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332004000600017info:eu-repo/semantics/openAccessCárdenas,W.H.Z.Canto,L.F.Donangelo,R.Carlin,N.Hussein,M.S.eng2004-11-04T00:00:00Zoai:scielo:S0103-97332004000600017Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2004-11-04T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Schematic coupled-channel calculations for nuclear reactions with unstable beams
title Schematic coupled-channel calculations for nuclear reactions with unstable beams
spellingShingle Schematic coupled-channel calculations for nuclear reactions with unstable beams
Cárdenas,W.H.Z.
title_short Schematic coupled-channel calculations for nuclear reactions with unstable beams
title_full Schematic coupled-channel calculations for nuclear reactions with unstable beams
title_fullStr Schematic coupled-channel calculations for nuclear reactions with unstable beams
title_full_unstemmed Schematic coupled-channel calculations for nuclear reactions with unstable beams
title_sort Schematic coupled-channel calculations for nuclear reactions with unstable beams
author Cárdenas,W.H.Z.
author_facet Cárdenas,W.H.Z.
Canto,L.F.
Donangelo,R.
Carlin,N.
Hussein,M.S.
author_role author
author2 Canto,L.F.
Donangelo,R.
Carlin,N.
Hussein,M.S.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Cárdenas,W.H.Z.
Canto,L.F.
Donangelo,R.
Carlin,N.
Hussein,M.S.
description We study nuclear reactions in collisions of unstable projectiles with heavy targets. For this purpose, we use a simple approximation for the breakup channel and treat two-neutron halos as a single particle. We then evaluate cross sections for collisions of 6He projectiles with targets of 238U and 209Bi. Comparing our results with recently measured fusion cross sections, we conclude that the large enhancement observed in 6He+238U fusion at sub-barrier energies cannot be explained by the coupling with the breakup channel. The effects of the halo on other reaction channels are also investigated. Coulomb-nuclear interference in the breakup channel is discussed.
publishDate 2004
dc.date.none.fl_str_mv 2004-09-01
dc.type.driver.fl_str_mv 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://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000600017
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000600017
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332004000600017
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.34 n.3b 2004
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
_version_ 1754734861550092288

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