Neutron star structure in a quark model with excluded volume correction

Autores
Aguirre, Ricardo Miguel; De Paoli, Ángel Luis
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the effects of the finite size of baryons on the equation of state of homogeneous hadronic matter. The finite extension of hadrons is introduced in order to improve the performance of field theoretical models at very high densities. We simulate the in-medium averaged baryon-baryon strong repulsion at very short distances by introducing a Van der Waals like normalization of the fields. This is done in the framework of the Quark Meson Coupling model, that allows to take care of the quark structure of baryons. Since within this model the confinement volume evolves with the fields configuration, the treatment is not equivalent to a simple hard-core potential. We investigate the phase transition to quark matter and the structure of neutron stars. We have found significant corrections at high densities.
Facultad de Ciencias Exactas
Materia
Física
Particle physics
Physics
Down quark
Bottom quark
Quark star
Nuclear physics
Top quark
Strange matter
Up quark
Quark
Top quark condensate
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/125903
Acceder
id SEDICI_e7546a12a7453a62b1773a0acc223cfe
oai_identifier_str oai:sedici.unlp.edu.ar:10915/125903
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Neutron star structure in a quark model with excluded volume correctionAguirre, Ricardo MiguelDe Paoli, Ángel LuisFísicaParticle physicsPhysicsDown quarkBottom quarkQuark starNuclear physicsTop quarkStrange matterUp quarkQuarkTop quark condensateWe study the effects of the finite size of baryons on the equation of state of homogeneous hadronic matter. The finite extension of hadrons is introduced in order to improve the performance of field theoretical models at very high densities. We simulate the in-medium averaged baryon-baryon strong repulsion at very short distances by introducing a Van der Waals like normalization of the fields. This is done in the framework of the Quark Meson Coupling model, that allows to take care of the quark structure of baryons. Since within this model the confinement volume evolves with the fields configuration, the treatment is not equivalent to a simple hard-core potential. We investigate the phase transition to quark matter and the structure of neutron stars. We have found significant corrections at high densities.Facultad de Ciencias Exactas2003-11-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/125903enginfo:eu-repo/semantics/altIdentifier/issn/0556-2813info:eu-repo/semantics/altIdentifier/issn/1089-490Xinfo:eu-repo/semantics/altIdentifier/arxiv/nucl-th/0211038info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevc.68.055804info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:30:13Zoai:sedici.unlp.edu.ar:10915/125903Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:30:14.305SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Neutron star structure in a quark model with excluded volume correction
title Neutron star structure in a quark model with excluded volume correction
spellingShingle Neutron star structure in a quark model with excluded volume correction
Aguirre, Ricardo Miguel
Física
Particle physics
Physics
Down quark
Bottom quark
Quark star
Nuclear physics
Top quark
Strange matter
Up quark
Quark
Top quark condensate
title_short Neutron star structure in a quark model with excluded volume correction
title_full Neutron star structure in a quark model with excluded volume correction
title_fullStr Neutron star structure in a quark model with excluded volume correction
title_full_unstemmed Neutron star structure in a quark model with excluded volume correction
title_sort Neutron star structure in a quark model with excluded volume correction
dc.creator.none.fl_str_mv Aguirre, Ricardo Miguel
De Paoli, Ángel Luis
author Aguirre, Ricardo Miguel
author_facet Aguirre, Ricardo Miguel
De Paoli, Ángel Luis
author_role author
author2 De Paoli, Ángel Luis
author2_role author
dc.subject.none.fl_str_mv Física
Particle physics
Physics
Down quark
Bottom quark
Quark star
Nuclear physics
Top quark
Strange matter
Up quark
Quark
Top quark condensate
topic Física
Particle physics
Physics
Down quark
Bottom quark
Quark star
Nuclear physics
Top quark
Strange matter
Up quark
Quark
Top quark condensate
dc.description.none.fl_txt_mv We study the effects of the finite size of baryons on the equation of state of homogeneous hadronic matter. The finite extension of hadrons is introduced in order to improve the performance of field theoretical models at very high densities. We simulate the in-medium averaged baryon-baryon strong repulsion at very short distances by introducing a Van der Waals like normalization of the fields. This is done in the framework of the Quark Meson Coupling model, that allows to take care of the quark structure of baryons. Since within this model the confinement volume evolves with the fields configuration, the treatment is not equivalent to a simple hard-core potential. We investigate the phase transition to quark matter and the structure of neutron stars. We have found significant corrections at high densities.
Facultad de Ciencias Exactas
description We study the effects of the finite size of baryons on the equation of state of homogeneous hadronic matter. The finite extension of hadrons is introduced in order to improve the performance of field theoretical models at very high densities. We simulate the in-medium averaged baryon-baryon strong repulsion at very short distances by introducing a Van der Waals like normalization of the fields. This is done in the framework of the Quark Meson Coupling model, that allows to take care of the quark structure of baryons. Since within this model the confinement volume evolves with the fields configuration, the treatment is not equivalent to a simple hard-core potential. We investigate the phase transition to quark matter and the structure of neutron stars. We have found significant corrections at high densities.
publishDate 2003
dc.date.none.fl_str_mv 2003-11-21
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/125903
url http://sedici.unlp.edu.ar/handle/10915/125903
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0556-2813
info:eu-repo/semantics/altIdentifier/issn/1089-490X
info:eu-repo/semantics/altIdentifier/arxiv/nucl-th/0211038
info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevc.68.055804
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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