Excitation of Δ andN*resonances in isobaric charge-exchange reactions of heavy nuclei
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/102545 https://doi.org/10.1051/epjconf/201610710003 |
Resumo: | We present a model for the study of the excitation of Δ(1232) and N∗(1440) resonances in isobaric charge-exchange (AZ, A(Z ± 1)) reactions of heavy nuclei. Quasi-elastic and inelastic elementary processes contributing to the double differential cross sections of the reactions are described in terms of the exchange of virtual pions. The inelastic channel includes processes where the resonances are excited both in the target and in the projectile nucleus. We present results for reactions of 112Sn and 124Sn on different targets. Our results confirm that the position of the Δ peak is insensitive to targets with mass number A ≥ 12, and show that the origin of the Δ peak shift towards low excitation energies, with respect to its position in reactions with a proton target, can be easily explained in terms of the superposition of the different excitation mechanisms contributing to the reaction. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Excitation of Δ andN*resonances in isobaric charge-exchange reactions of heavy nucleiWe present a model for the study of the excitation of Δ(1232) and N∗(1440) resonances in isobaric charge-exchange (AZ, A(Z ± 1)) reactions of heavy nuclei. Quasi-elastic and inelastic elementary processes contributing to the double differential cross sections of the reactions are described in terms of the exchange of virtual pions. The inelastic channel includes processes where the resonances are excited both in the target and in the projectile nucleus. We present results for reactions of 112Sn and 124Sn on different targets. Our results confirm that the position of the Δ peak is insensitive to targets with mass number A ≥ 12, and show that the origin of the Δ peak shift towards low excitation energies, with respect to its position in reactions with a proton target, can be easily explained in terms of the superposition of the different excitation mechanisms contributing to the reaction.2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/102545http://hdl.handle.net/10316/102545https://doi.org/10.1051/epjconf/201610710003eng2100-014XVidana, I.Benlliure, J.Geissel, H.Lenske, H.Scheidenberger, C.Vargas, J.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-30T20:32:46Zoai:estudogeral.uc.pt:10316/102545Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:19:30.741679Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Excitation of Δ andN*resonances in isobaric charge-exchange reactions of heavy nuclei |
title |
Excitation of Δ andN*resonances in isobaric charge-exchange reactions of heavy nuclei |
spellingShingle |
Excitation of Δ andN*resonances in isobaric charge-exchange reactions of heavy nuclei Vidana, I. |
title_short |
Excitation of Δ andN*resonances in isobaric charge-exchange reactions of heavy nuclei |
title_full |
Excitation of Δ andN*resonances in isobaric charge-exchange reactions of heavy nuclei |
title_fullStr |
Excitation of Δ andN*resonances in isobaric charge-exchange reactions of heavy nuclei |
title_full_unstemmed |
Excitation of Δ andN*resonances in isobaric charge-exchange reactions of heavy nuclei |
title_sort |
Excitation of Δ andN*resonances in isobaric charge-exchange reactions of heavy nuclei |
author |
Vidana, I. |
author_facet |
Vidana, I. Benlliure, J. Geissel, H. Lenske, H. Scheidenberger, C. Vargas, J. |
author_role |
author |
author2 |
Benlliure, J. Geissel, H. Lenske, H. Scheidenberger, C. Vargas, J. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Vidana, I. Benlliure, J. Geissel, H. Lenske, H. Scheidenberger, C. Vargas, J. |
description |
We present a model for the study of the excitation of Δ(1232) and N∗(1440) resonances in isobaric charge-exchange (AZ, A(Z ± 1)) reactions of heavy nuclei. Quasi-elastic and inelastic elementary processes contributing to the double differential cross sections of the reactions are described in terms of the exchange of virtual pions. The inelastic channel includes processes where the resonances are excited both in the target and in the projectile nucleus. We present results for reactions of 112Sn and 124Sn on different targets. Our results confirm that the position of the Δ peak is insensitive to targets with mass number A ≥ 12, and show that the origin of the Δ peak shift towards low excitation energies, with respect to its position in reactions with a proton target, can be easily explained in terms of the superposition of the different excitation mechanisms contributing to the reaction. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/102545 http://hdl.handle.net/10316/102545 https://doi.org/10.1051/epjconf/201610710003 |
url |
http://hdl.handle.net/10316/102545 https://doi.org/10.1051/epjconf/201610710003 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2100-014X |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
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1799134089321644032 |