Delta(1232) isobar excitations and the ground state of nuclei

The influence of Delta isobar components on the ground-state properties of nuclear systems is investigated for nuclear matter as well as finite nuclei. Many-body wave functions, including isobar configurations and binding energies, are evaluated employing the framework of the coupled-cluster theory....

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Detalles Bibliográficos
Autores: Frick, Tobias, Kaiser, Steffen, Müther, Herbert, Polls Martí, Artur, Entem, D. R., Machleidt, R.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2002
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/10995
Acceso en línea:https://hdl.handle.net/2445/10995
Access Level:acceso abierto
Palabra clave:Estructura nuclear
Excitació nuclear
Nuclear structure
Nuclear excitation
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spelling Delta(1232) isobar excitations and the ground state of nucleiFrick, TobiasKaiser, SteffenMüther, HerbertPolls Martí, ArturEntem, D. R.Machleidt, R.Estructura nuclearExcitació nuclearNuclear structureNuclear excitationThe influence of Delta isobar components on the ground-state properties of nuclear systems is investigated for nuclear matter as well as finite nuclei. Many-body wave functions, including isobar configurations and binding energies, are evaluated employing the framework of the coupled-cluster theory. It is demonstrated that the effect of isobar configurations depends in a rather sensitive way on the model used for the baryon-baryon interaction. As examples for realistic baryon-baryon interactions with explicit inclusion of isobar channels we use the local (V28) and nonlocal meson-exchange potentials (Bonn2000) but also a model recently developed by the Salamanca group, which is based on a quark picture. The differences obtained for the nuclear observables are related to the treatment of the interaction, the pi-exchange contributions in particular, at high momentum transfers.The American Physical Society2002info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/10995Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevC.65.034316Physical Review C, 2002, vol. 65, núm. 3, p. 034316-1-034316-7http://dx.doi.org/10.1103/PhysRevC.65.034316(c) The American Physical Society, 2002info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/109952026-05-27T06:46:51Z
dc.title.none.fl_str_mv Delta(1232) isobar excitations and the ground state of nuclei
title Delta(1232) isobar excitations and the ground state of nuclei
spellingShingle Delta(1232) isobar excitations and the ground state of nuclei
Frick, Tobias
Estructura nuclear
Excitació nuclear
Nuclear structure
Nuclear excitation
title_short Delta(1232) isobar excitations and the ground state of nuclei
title_full Delta(1232) isobar excitations and the ground state of nuclei
title_fullStr Delta(1232) isobar excitations and the ground state of nuclei
title_full_unstemmed Delta(1232) isobar excitations and the ground state of nuclei
title_sort Delta(1232) isobar excitations and the ground state of nuclei
dc.creator.none.fl_str_mv Frick, Tobias
Kaiser, Steffen
Müther, Herbert
Polls Martí, Artur
Entem, D. R.
Machleidt, R.
author Frick, Tobias
author_facet Frick, Tobias
Kaiser, Steffen
Müther, Herbert
Polls Martí, Artur
Entem, D. R.
Machleidt, R.
author_role author
author2 Kaiser, Steffen
Müther, Herbert
Polls Martí, Artur
Entem, D. R.
Machleidt, R.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Estructura nuclear
Excitació nuclear
Nuclear structure
Nuclear excitation
topic Estructura nuclear
Excitació nuclear
Nuclear structure
Nuclear excitation
description The influence of Delta isobar components on the ground-state properties of nuclear systems is investigated for nuclear matter as well as finite nuclei. Many-body wave functions, including isobar configurations and binding energies, are evaluated employing the framework of the coupled-cluster theory. It is demonstrated that the effect of isobar configurations depends in a rather sensitive way on the model used for the baryon-baryon interaction. As examples for realistic baryon-baryon interactions with explicit inclusion of isobar channels we use the local (V28) and nonlocal meson-exchange potentials (Bonn2000) but also a model recently developed by the Salamanca group, which is based on a quark picture. The differences obtained for the nuclear observables are related to the treatment of the interaction, the pi-exchange contributions in particular, at high momentum transfers.
publishDate 2002
dc.date.none.fl_str_mv 2002
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/10995
url https://hdl.handle.net/2445/10995
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevC.65.034316
Physical Review C, 2002, vol. 65, núm. 3, p. 034316-1-034316-7
http://dx.doi.org/10.1103/PhysRevC.65.034316
dc.rights.none.fl_str_mv (c) The American Physical Society, 2002
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) The American Physical Society, 2002
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv The American Physical Society
publisher.none.fl_str_mv The American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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