Bulk and single-particle properties of hyperonic matter at finite temperature

Bulk and single-particle properties of hot hyperonic matter are studied within the Brueckner-Hartree-Fock approximation extended to finite temperature. The bare interaction in the nucleon sector is the Argonne V18 potential supplemented with an effective three-body force to reproduce the saturating...

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Autores: Rios Huguet, Arnau, Polls Martí, Artur, Ramos Gómez, Àngels, Vidaña Haro, Isaac
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2005
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/11016
Acceso en línea:https://hdl.handle.net/2445/11016
Access Level:acceso abierto
Palabra clave:Astrofísica nuclear
Estructura nuclear
Nuclear astrophysics
Nuclear structure
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spelling Bulk and single-particle properties of hyperonic matter at finite temperatureRios Huguet, ArnauPolls Martí, ArturRamos Gómez, ÀngelsVidaña Haro, IsaacAstrofísica nuclearEstructura nuclearNuclear astrophysicsNuclear structureBulk and single-particle properties of hot hyperonic matter are studied within the Brueckner-Hartree-Fock approximation extended to finite temperature. The bare interaction in the nucleon sector is the Argonne V18 potential supplemented with an effective three-body force to reproduce the saturating properties of nuclear matter. The modern Nijmegen NSC97e potential is employed for the hyperon-nucleon and hyperon-hyperon interactions. The effect of temperature on the in-medium effective interaction is found to be, in general, very small and the single-particle potentials differ by at most 25% for temperatures in the range from 0 to 60 MeV. The bulk properties of infinite matter of baryons, either nuclear isospin symmetric or a Beta-stable composition that includes a nonzero fraction of hyperons, are obtained. It is found that the presence of hyperons can modify the thermodynamical properties of the system in a non-negligible way.The American Physical Society2005info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/11016Articles 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.72.024316Physical Review C, 2005, vol. 72, núm. 2, p. 024316-1-024316-10http://dx.doi.org/10.1103/PhysRevC.72.024316(c) The American Physical Society, 2005info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/110162026-05-27T06:46:51Z
dc.title.none.fl_str_mv Bulk and single-particle properties of hyperonic matter at finite temperature
title Bulk and single-particle properties of hyperonic matter at finite temperature
spellingShingle Bulk and single-particle properties of hyperonic matter at finite temperature
Rios Huguet, Arnau
Astrofísica nuclear
Estructura nuclear
Nuclear astrophysics
Nuclear structure
title_short Bulk and single-particle properties of hyperonic matter at finite temperature
title_full Bulk and single-particle properties of hyperonic matter at finite temperature
title_fullStr Bulk and single-particle properties of hyperonic matter at finite temperature
title_full_unstemmed Bulk and single-particle properties of hyperonic matter at finite temperature
title_sort Bulk and single-particle properties of hyperonic matter at finite temperature
dc.creator.none.fl_str_mv Rios Huguet, Arnau
Polls Martí, Artur
Ramos Gómez, Àngels
Vidaña Haro, Isaac
author Rios Huguet, Arnau
author_facet Rios Huguet, Arnau
Polls Martí, Artur
Ramos Gómez, Àngels
Vidaña Haro, Isaac
author_role author
author2 Polls Martí, Artur
Ramos Gómez, Àngels
Vidaña Haro, Isaac
author2_role author
author
author
dc.subject.none.fl_str_mv Astrofísica nuclear
Estructura nuclear
Nuclear astrophysics
Nuclear structure
topic Astrofísica nuclear
Estructura nuclear
Nuclear astrophysics
Nuclear structure
description Bulk and single-particle properties of hot hyperonic matter are studied within the Brueckner-Hartree-Fock approximation extended to finite temperature. The bare interaction in the nucleon sector is the Argonne V18 potential supplemented with an effective three-body force to reproduce the saturating properties of nuclear matter. The modern Nijmegen NSC97e potential is employed for the hyperon-nucleon and hyperon-hyperon interactions. The effect of temperature on the in-medium effective interaction is found to be, in general, very small and the single-particle potentials differ by at most 25% for temperatures in the range from 0 to 60 MeV. The bulk properties of infinite matter of baryons, either nuclear isospin symmetric or a Beta-stable composition that includes a nonzero fraction of hyperons, are obtained. It is found that the presence of hyperons can modify the thermodynamical properties of the system in a non-negligible way.
publishDate 2005
dc.date.none.fl_str_mv 2005
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/2445/11016
url https://hdl.handle.net/2445/11016
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.72.024316
Physical Review C, 2005, vol. 72, núm. 2, p. 024316-1-024316-10
http://dx.doi.org/10.1103/PhysRevC.72.024316
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 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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