Sum rule approach to the isoscalar giant monopole resonance in drip line nuclei

Using the density-dependent Hartree-Fock approximation and Skyrme forces together with the scaling method and constrained Hartree-Fock calculations, we obtain the average energies of the isoscalar giant monopole resonance. The calculations are done along several isotopic chains from the proton to th...

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Autores: Centelles Aixalà, Mario, Viñas Gausí, Xavier, Patra, S. K., De, J. N., Sil, Tapas
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2005
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/11015
Acceso en línea:https://hdl.handle.net/2445/11015
Access Level:acceso abierto
Palabra clave:Reaccions nuclears
Estructura nuclear
Nuclear reactions
Nuclear structure
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spelling Sum rule approach to the isoscalar giant monopole resonance in drip line nucleiCentelles Aixalà, MarioViñas Gausí, XavierPatra, S. K.De, J. N.Sil, TapasReaccions nuclearsEstructura nuclearNuclear reactionsNuclear structureUsing the density-dependent Hartree-Fock approximation and Skyrme forces together with the scaling method and constrained Hartree-Fock calculations, we obtain the average energies of the isoscalar giant monopole resonance. The calculations are done along several isotopic chains from the proton to the neutron drip lines. It is found that while approaching the neutron drip line, the scaled and the constrained energies decrease and the resonance width increases. Similar but smaller effects arise near the proton drip line, although only for the lighter isotopic chains. A qualitatively good agreement is found between our sum rule description and the presently existing random phase approximation results. The ability of the semiclassical approximations of the Thomas-Fermi type, which properly describe the average energy of the isoscalar giant monopole resonance for stable nuclei, to predict average properties for nuclei near the drip lines is also analyzed. We show that when hbar corrections are included, the semiclassical estimates reproduce, on average, the quantal excitation energies of the giant monopole resonance for nuclei with extreme isospin values.The American Physical Society201020102005info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion14 p.application/pdfhttps://hdl.handle.net/2445/11015Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevC.72.014304Physical Review C, 2005, vol. 72, núm. 1, p. 014304-1-014304-14http://dx.doi.org/10.1103/PhysRevC.72.014304(c) The American Physical Society, 2005info:eu-repo/semantics/openAccessoai:recercat.cat:2445/110152026-05-29T05:05:01Z
dc.title.none.fl_str_mv Sum rule approach to the isoscalar giant monopole resonance in drip line nuclei
title Sum rule approach to the isoscalar giant monopole resonance in drip line nuclei
spellingShingle Sum rule approach to the isoscalar giant monopole resonance in drip line nuclei
Centelles Aixalà, Mario
Reaccions nuclears
Estructura nuclear
Nuclear reactions
Nuclear structure
title_short Sum rule approach to the isoscalar giant monopole resonance in drip line nuclei
title_full Sum rule approach to the isoscalar giant monopole resonance in drip line nuclei
title_fullStr Sum rule approach to the isoscalar giant monopole resonance in drip line nuclei
title_full_unstemmed Sum rule approach to the isoscalar giant monopole resonance in drip line nuclei
title_sort Sum rule approach to the isoscalar giant monopole resonance in drip line nuclei
dc.creator.none.fl_str_mv Centelles Aixalà, Mario
Viñas Gausí, Xavier
Patra, S. K.
De, J. N.
Sil, Tapas
author Centelles Aixalà, Mario
author_facet Centelles Aixalà, Mario
Viñas Gausí, Xavier
Patra, S. K.
De, J. N.
Sil, Tapas
author_role author
author2 Viñas Gausí, Xavier
Patra, S. K.
De, J. N.
Sil, Tapas
author2_role author
author
author
author
dc.subject.none.fl_str_mv Reaccions nuclears
Estructura nuclear
Nuclear reactions
Nuclear structure
topic Reaccions nuclears
Estructura nuclear
Nuclear reactions
Nuclear structure
description Using the density-dependent Hartree-Fock approximation and Skyrme forces together with the scaling method and constrained Hartree-Fock calculations, we obtain the average energies of the isoscalar giant monopole resonance. The calculations are done along several isotopic chains from the proton to the neutron drip lines. It is found that while approaching the neutron drip line, the scaled and the constrained energies decrease and the resonance width increases. Similar but smaller effects arise near the proton drip line, although only for the lighter isotopic chains. A qualitatively good agreement is found between our sum rule description and the presently existing random phase approximation results. The ability of the semiclassical approximations of the Thomas-Fermi type, which properly describe the average energy of the isoscalar giant monopole resonance for stable nuclei, to predict average properties for nuclei near the drip lines is also analyzed. We show that when hbar corrections are included, the semiclassical estimates reproduce, on average, the quantal excitation energies of the giant monopole resonance for nuclei with extreme isospin values.
publishDate 2005
dc.date.none.fl_str_mv 2005
2010
2010
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/2445/11015
url https://hdl.handle.net/2445/11015
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.72.014304
Physical Review C, 2005, vol. 72, núm. 1, p. 014304-1-014304-14
http://dx.doi.org/10.1103/PhysRevC.72.014304
dc.rights.none.fl_str_mv (c) The American Physical Society, 2005
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) The American Physical Society, 2005
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 14 p.
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:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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