Understanding 6He induced reactions at energies around the Coulomb barrier

Recent developments aimed to understand the observed features arising in the scattering of the Borromean nucleus 6He on heavy targets are discussed and compared with recent data for 6He+208Pb measured at the RIB facility at Louvain-la-Neuve at energies around the Coulomb barrier. The analysis of the...

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Autores: Moro Muñoz, Antonio Matías, Acosta, Luis, Arias Carrasco, José Miguel, García Borge, María José, Escrig, D., Gómez Camacho, Joaquín José, Martel, Ismael, Rodríguez Gallardo, Manuela, Sánchez Benítez, A. M., Tengblad, Olof
Tipo de documento: artigo
Estado:Versión aceptada para publicación
Data de publicação:2009
País:España
Recursos:Universidad de Sevilla (US)
Repositório:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/73484
Acesso em linha:https://hdl.handle.net/11441/73484
https://doi.org/10.1063/1.3157827
Access Level:Acceso aberto
Palavra-chave:Nuclear reactions
Exotic beams
Halo nuclei
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spelling Understanding 6He induced reactions at energies around the Coulomb barrierMoro Muñoz, Antonio MatíasAcosta, LuisArias Carrasco, José MiguelGarcía Borge, María JoséEscrig, D.Gómez Camacho, Joaquín JoséMartel, IsmaelRodríguez Gallardo, ManuelaSánchez Benítez, A. M.Tengblad, OlofNuclear reactionsExotic beamsHalo nucleiRecent developments aimed to understand the observed features arising in the scattering of the Borromean nucleus 6He on heavy targets are discussed and compared with recent data for 6He+208Pb measured at the RIB facility at Louvain-la-Neuve at energies around the Coulomb barrier. The analysis of the elastic scattering data in terms of the optical model, reveals the presence of a long range absorption mechanism, that manifests in the form of a large value of the imaginary diffuseness parameter. The elastic data have been also compared with three–body CDCC calculations, based on a di-neutron model of 6He, and four–body CDCC calculations, based on a more realistic three-body model of this nucleus. Finally, the angular and energy distribution of a particles emitted at backward angles are discussed and compared with different theoretical approaches.We find that these a particles are produced mainly by a two-neutron transfer mechanism to very excited states in the residual nucleus.American Institute of PhysicsFísica Atómica, Molecular y Nuclear2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/73484https://doi.org/10.1063/1.3157827reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésAIP Conference Proceedings, 1139, 1-8.http://dx.doi.org/10.1063/1.3157827info:eu-repo/semantics/openAccessoai:idus.us.es:11441/734842026-06-17T12:51:07Z
dc.title.none.fl_str_mv Understanding 6He induced reactions at energies around the Coulomb barrier
title Understanding 6He induced reactions at energies around the Coulomb barrier
spellingShingle Understanding 6He induced reactions at energies around the Coulomb barrier
Moro Muñoz, Antonio Matías
Nuclear reactions
Exotic beams
Halo nuclei
title_short Understanding 6He induced reactions at energies around the Coulomb barrier
title_full Understanding 6He induced reactions at energies around the Coulomb barrier
title_fullStr Understanding 6He induced reactions at energies around the Coulomb barrier
title_full_unstemmed Understanding 6He induced reactions at energies around the Coulomb barrier
title_sort Understanding 6He induced reactions at energies around the Coulomb barrier
dc.creator.none.fl_str_mv Moro Muñoz, Antonio Matías
Acosta, Luis
Arias Carrasco, José Miguel
García Borge, María José
Escrig, D.
Gómez Camacho, Joaquín José
Martel, Ismael
Rodríguez Gallardo, Manuela
Sánchez Benítez, A. M.
Tengblad, Olof
author Moro Muñoz, Antonio Matías
author_facet Moro Muñoz, Antonio Matías
Acosta, Luis
Arias Carrasco, José Miguel
García Borge, María José
Escrig, D.
Gómez Camacho, Joaquín José
Martel, Ismael
Rodríguez Gallardo, Manuela
Sánchez Benítez, A. M.
Tengblad, Olof
author_role author
author2 Acosta, Luis
Arias Carrasco, José Miguel
García Borge, María José
Escrig, D.
Gómez Camacho, Joaquín José
Martel, Ismael
Rodríguez Gallardo, Manuela
Sánchez Benítez, A. M.
Tengblad, Olof
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Física Atómica, Molecular y Nuclear
dc.subject.none.fl_str_mv Nuclear reactions
Exotic beams
Halo nuclei
topic Nuclear reactions
Exotic beams
Halo nuclei
description Recent developments aimed to understand the observed features arising in the scattering of the Borromean nucleus 6He on heavy targets are discussed and compared with recent data for 6He+208Pb measured at the RIB facility at Louvain-la-Neuve at energies around the Coulomb barrier. The analysis of the elastic scattering data in terms of the optical model, reveals the presence of a long range absorption mechanism, that manifests in the form of a large value of the imaginary diffuseness parameter. The elastic data have been also compared with three–body CDCC calculations, based on a di-neutron model of 6He, and four–body CDCC calculations, based on a more realistic three-body model of this nucleus. Finally, the angular and energy distribution of a particles emitted at backward angles are discussed and compared with different theoretical approaches.We find that these a particles are produced mainly by a two-neutron transfer mechanism to very excited states in the residual nucleus.
publishDate 2009
dc.date.none.fl_str_mv 2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/73484
https://doi.org/10.1063/1.3157827
url https://hdl.handle.net/11441/73484
https://doi.org/10.1063/1.3157827
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv AIP Conference Proceedings, 1139, 1-8.
http://dx.doi.org/10.1063/1.3157827
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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