Phases of Hadron-Quark Matter in (Proto) Neutron Stars

Autores
Weber, Fridolin; Farrell, Delaney; Spinella, William; Malfatti, Germán; Orsaria, Milva Gabriela; Contrera, Gustavo Aníbal; Maloney, Ian
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the first part of this paper, we investigate the possible existence of a structured hadron-quark mixed phase in the cores of neutron stars. This phase, referred to as the hadron-quark pasta phase, consists of spherical blob, rod, and slab rare phase geometries. Particular emphasis is given to modeling the size of this phase in rotating neutron stars. We use the relativistic mean-field theory to model hadronic matter and the non-local three-flavor Nambu–Jona-Lasinio model to describe quark matter. Based on these models, the hadron-quark pasta phase exists only in very massive neutron stars, whose rotational frequencies are less than around 300 Hz. All other stars are not dense enough to trigger quark deconfinement in their cores. Part two of the paper deals with the quark-hadron composition of hot (proto) neutron star matter. To this end we use a local three-flavor Polyakov–Nambu–Jona-Lasinio model which includes the ’t Hooft (quark flavor mixing) term. It is found that this term leads to non-negligible changes in the particle composition of (proto) neutron stars made of hadron-quark matter.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Física La Plata
Materia
Ciencias Astronómicas
quark matter
hadronic matter
quark deconfinement
neutron star matter
nuclear equation of state
phase transition
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/125610
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/125610
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Phases of Hadron-Quark Matter in (Proto) Neutron StarsWeber, FridolinFarrell, DelaneySpinella, WilliamMalfatti, GermánOrsaria, Milva GabrielaContrera, Gustavo AníbalMaloney, IanCiencias Astronómicasquark matterhadronic matterquark deconfinementneutron star matternuclear equation of statephase transitionIn the first part of this paper, we investigate the possible existence of a structured hadron-quark mixed phase in the cores of neutron stars. This phase, referred to as the hadron-quark pasta phase, consists of spherical blob, rod, and slab rare phase geometries. Particular emphasis is given to modeling the size of this phase in rotating neutron stars. We use the relativistic mean-field theory to model hadronic matter and the non-local three-flavor Nambu–Jona-Lasinio model to describe quark matter. Based on these models, the hadron-quark pasta phase exists only in very massive neutron stars, whose rotational frequencies are less than around 300 Hz. All other stars are not dense enough to trigger quark deconfinement in their cores. Part two of the paper deals with the quark-hadron composition of hot (proto) neutron star matter. To this end we use a local three-flavor Polyakov–Nambu–Jona-Lasinio model which includes the ’t Hooft (quark flavor mixing) term. It is found that this term leads to non-negligible changes in the particle composition of (proto) neutron stars made of hadron-quark matter.Facultad de Ciencias Astronómicas y GeofísicasInstituto de Física La Plata2019info: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/10915/125610enginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2218-1997/5/7/169info:eu-repo/semantics/altIdentifier/issn/2218-1997info:eu-repo/semantics/altIdentifier/doi/10.3390/universe5070169info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:30:03Zoai:sedici.unlp.edu.ar:10915/125610Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:30:03.551SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Phases of Hadron-Quark Matter in (Proto) Neutron Stars
title Phases of Hadron-Quark Matter in (Proto) Neutron Stars
spellingShingle Phases of Hadron-Quark Matter in (Proto) Neutron Stars
Weber, Fridolin
Ciencias Astronómicas
quark matter
hadronic matter
quark deconfinement
neutron star matter
nuclear equation of state
phase transition
title_short Phases of Hadron-Quark Matter in (Proto) Neutron Stars
title_full Phases of Hadron-Quark Matter in (Proto) Neutron Stars
title_fullStr Phases of Hadron-Quark Matter in (Proto) Neutron Stars
title_full_unstemmed Phases of Hadron-Quark Matter in (Proto) Neutron Stars
title_sort Phases of Hadron-Quark Matter in (Proto) Neutron Stars
dc.creator.none.fl_str_mv Weber, Fridolin
Farrell, Delaney
Spinella, William
Malfatti, Germán
Orsaria, Milva Gabriela
Contrera, Gustavo Aníbal
Maloney, Ian
author Weber, Fridolin
author_facet Weber, Fridolin
Farrell, Delaney
Spinella, William
Malfatti, Germán
Orsaria, Milva Gabriela
Contrera, Gustavo Aníbal
Maloney, Ian
author_role author
author2 Farrell, Delaney
Spinella, William
Malfatti, Germán
Orsaria, Milva Gabriela
Contrera, Gustavo Aníbal
Maloney, Ian
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
quark matter
hadronic matter
quark deconfinement
neutron star matter
nuclear equation of state
phase transition
topic Ciencias Astronómicas
quark matter
hadronic matter
quark deconfinement
neutron star matter
nuclear equation of state
phase transition
dc.description.none.fl_txt_mv In the first part of this paper, we investigate the possible existence of a structured hadron-quark mixed phase in the cores of neutron stars. This phase, referred to as the hadron-quark pasta phase, consists of spherical blob, rod, and slab rare phase geometries. Particular emphasis is given to modeling the size of this phase in rotating neutron stars. We use the relativistic mean-field theory to model hadronic matter and the non-local three-flavor Nambu–Jona-Lasinio model to describe quark matter. Based on these models, the hadron-quark pasta phase exists only in very massive neutron stars, whose rotational frequencies are less than around 300 Hz. All other stars are not dense enough to trigger quark deconfinement in their cores. Part two of the paper deals with the quark-hadron composition of hot (proto) neutron star matter. To this end we use a local three-flavor Polyakov–Nambu–Jona-Lasinio model which includes the ’t Hooft (quark flavor mixing) term. It is found that this term leads to non-negligible changes in the particle composition of (proto) neutron stars made of hadron-quark matter.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Física La Plata
description In the first part of this paper, we investigate the possible existence of a structured hadron-quark mixed phase in the cores of neutron stars. This phase, referred to as the hadron-quark pasta phase, consists of spherical blob, rod, and slab rare phase geometries. Particular emphasis is given to modeling the size of this phase in rotating neutron stars. We use the relativistic mean-field theory to model hadronic matter and the non-local three-flavor Nambu–Jona-Lasinio model to describe quark matter. Based on these models, the hadron-quark pasta phase exists only in very massive neutron stars, whose rotational frequencies are less than around 300 Hz. All other stars are not dense enough to trigger quark deconfinement in their cores. Part two of the paper deals with the quark-hadron composition of hot (proto) neutron star matter. To this end we use a local three-flavor Polyakov–Nambu–Jona-Lasinio model which includes the ’t Hooft (quark flavor mixing) term. It is found that this term leads to non-negligible changes in the particle composition of (proto) neutron stars made of hadron-quark matter.
publishDate 2019
dc.date.none.fl_str_mv 2019
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/10915/125610
url http://sedici.unlp.edu.ar/handle/10915/125610
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2218-1997/5/7/169
info:eu-repo/semantics/altIdentifier/issn/2218-1997
info:eu-repo/semantics/altIdentifier/doi/10.3390/universe5070169
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 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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