Hot quark matter and (proto-) neutron stars
- Autores
- Malfatti, Germán; Orsaria, Milva Gabriela; Contrera, Gustavo Aníbal Gabriel; Weber, Fridolin; Ranea Sandoval, Ignacio Francisco
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In the first part of this paper, we use a nonlocal extension of the three-flavor Polyakov-Nambu-Jona-Lasinio model, which takes into account flavor-mixing, momentum dependent quark masses, and vector interactions among quarks, to investigate the possible existence of a spinodal region (determined by the vanishing of the speed of sound) in the QCD phase diagram and determine the temperature and chemical potential of the critical end point. In the second part of the paper, we investigate the quark-hadron composition of baryonic matter at zero as well as nonzero temperature. This is of great topical interest for the analysis and interpretation of neutron star merger events such as GW170817. With this in mind, we determine the composition of proto-neutron star matter for entropies and lepton fractions that are typical of such matter. These compositions are used to delineate the evolution of proto-neutron stars to neutron stars in the baryon-mass versus gravitational-mass diagram. The hot stellar models turn out to contain significant fractions of hyperons and Δ isobars but no deconfined quarks. The latter are found to exist only in cold neutron stars.
Fil: Malfatti, Germán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Orsaria, Milva Gabriela. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Contrera, Gustavo Aníbal Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. San Diego State University; Estados Unidos
Fil: Weber, Fridolin. University of California; Estados Unidos. San Diego State University; Estados Unidos
Fil: Ranea Sandoval, Ignacio Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina - Materia
-
Phase transitions
Hyperons
Quarks
Proto Hybrid Stars - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/119479
Ver los metadatos del registro completo
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Hot quark matter and (proto-) neutron starsMalfatti, GermánOrsaria, Milva GabrielaContrera, Gustavo Aníbal GabrielWeber, FridolinRanea Sandoval, Ignacio FranciscoPhase transitionsHyperonsQuarksProto Hybrid Starshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In the first part of this paper, we use a nonlocal extension of the three-flavor Polyakov-Nambu-Jona-Lasinio model, which takes into account flavor-mixing, momentum dependent quark masses, and vector interactions among quarks, to investigate the possible existence of a spinodal region (determined by the vanishing of the speed of sound) in the QCD phase diagram and determine the temperature and chemical potential of the critical end point. In the second part of the paper, we investigate the quark-hadron composition of baryonic matter at zero as well as nonzero temperature. This is of great topical interest for the analysis and interpretation of neutron star merger events such as GW170817. With this in mind, we determine the composition of proto-neutron star matter for entropies and lepton fractions that are typical of such matter. These compositions are used to delineate the evolution of proto-neutron stars to neutron stars in the baryon-mass versus gravitational-mass diagram. The hot stellar models turn out to contain significant fractions of hyperons and Δ isobars but no deconfined quarks. The latter are found to exist only in cold neutron stars.Fil: Malfatti, Germán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Orsaria, Milva Gabriela. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Contrera, Gustavo Aníbal Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. San Diego State University; Estados UnidosFil: Weber, Fridolin. University of California; Estados Unidos. San Diego State University; Estados UnidosFil: Ranea Sandoval, Ignacio Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaAmerican Physical Society2019-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/119479Malfatti, Germán; Orsaria, Milva Gabriela; Contrera, Gustavo Aníbal Gabriel; Weber, Fridolin; Ranea Sandoval, Ignacio Francisco; Hot quark matter and (proto-) neutron stars; American Physical Society; Physical Review C: Nuclear Physics; 100; 1; 7-2019; 1580301-15803172469-99852469-9993CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevC.100.015803info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prc/abstract/10.1103/PhysRevC.100.015803info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:45:11Zoai:ri.conicet.gov.ar:11336/119479instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:45:11.398CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Hot quark matter and (proto-) neutron stars |
title |
Hot quark matter and (proto-) neutron stars |
spellingShingle |
Hot quark matter and (proto-) neutron stars Malfatti, Germán Phase transitions Hyperons Quarks Proto Hybrid Stars |
title_short |
Hot quark matter and (proto-) neutron stars |
title_full |
Hot quark matter and (proto-) neutron stars |
title_fullStr |
Hot quark matter and (proto-) neutron stars |
title_full_unstemmed |
Hot quark matter and (proto-) neutron stars |
title_sort |
Hot quark matter and (proto-) neutron stars |
dc.creator.none.fl_str_mv |
Malfatti, Germán Orsaria, Milva Gabriela Contrera, Gustavo Aníbal Gabriel Weber, Fridolin Ranea Sandoval, Ignacio Francisco |
author |
Malfatti, Germán |
author_facet |
Malfatti, Germán Orsaria, Milva Gabriela Contrera, Gustavo Aníbal Gabriel Weber, Fridolin Ranea Sandoval, Ignacio Francisco |
author_role |
author |
author2 |
Orsaria, Milva Gabriela Contrera, Gustavo Aníbal Gabriel Weber, Fridolin Ranea Sandoval, Ignacio Francisco |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Phase transitions Hyperons Quarks Proto Hybrid Stars |
topic |
Phase transitions Hyperons Quarks Proto Hybrid Stars |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
In the first part of this paper, we use a nonlocal extension of the three-flavor Polyakov-Nambu-Jona-Lasinio model, which takes into account flavor-mixing, momentum dependent quark masses, and vector interactions among quarks, to investigate the possible existence of a spinodal region (determined by the vanishing of the speed of sound) in the QCD phase diagram and determine the temperature and chemical potential of the critical end point. In the second part of the paper, we investigate the quark-hadron composition of baryonic matter at zero as well as nonzero temperature. This is of great topical interest for the analysis and interpretation of neutron star merger events such as GW170817. With this in mind, we determine the composition of proto-neutron star matter for entropies and lepton fractions that are typical of such matter. These compositions are used to delineate the evolution of proto-neutron stars to neutron stars in the baryon-mass versus gravitational-mass diagram. The hot stellar models turn out to contain significant fractions of hyperons and Δ isobars but no deconfined quarks. The latter are found to exist only in cold neutron stars. Fil: Malfatti, Germán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina Fil: Orsaria, Milva Gabriela. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina Fil: Contrera, Gustavo Aníbal Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. San Diego State University; Estados Unidos Fil: Weber, Fridolin. University of California; Estados Unidos. San Diego State University; Estados Unidos Fil: Ranea Sandoval, Ignacio Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina |
description |
In the first part of this paper, we use a nonlocal extension of the three-flavor Polyakov-Nambu-Jona-Lasinio model, which takes into account flavor-mixing, momentum dependent quark masses, and vector interactions among quarks, to investigate the possible existence of a spinodal region (determined by the vanishing of the speed of sound) in the QCD phase diagram and determine the temperature and chemical potential of the critical end point. In the second part of the paper, we investigate the quark-hadron composition of baryonic matter at zero as well as nonzero temperature. This is of great topical interest for the analysis and interpretation of neutron star merger events such as GW170817. With this in mind, we determine the composition of proto-neutron star matter for entropies and lepton fractions that are typical of such matter. These compositions are used to delineate the evolution of proto-neutron stars to neutron stars in the baryon-mass versus gravitational-mass diagram. The hot stellar models turn out to contain significant fractions of hyperons and Δ isobars but no deconfined quarks. The latter are found to exist only in cold neutron stars. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-07 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 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://hdl.handle.net/11336/119479 Malfatti, Germán; Orsaria, Milva Gabriela; Contrera, Gustavo Aníbal Gabriel; Weber, Fridolin; Ranea Sandoval, Ignacio Francisco; Hot quark matter and (proto-) neutron stars; American Physical Society; Physical Review C: Nuclear Physics; 100; 1; 7-2019; 1580301-1580317 2469-9985 2469-9993 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/119479 |
identifier_str_mv |
Malfatti, Germán; Orsaria, Milva Gabriela; Contrera, Gustavo Aníbal Gabriel; Weber, Fridolin; Ranea Sandoval, Ignacio Francisco; Hot quark matter and (proto-) neutron stars; American Physical Society; Physical Review C: Nuclear Physics; 100; 1; 7-2019; 1580301-1580317 2469-9985 2469-9993 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevC.100.015803 info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prc/abstract/10.1103/PhysRevC.100.015803 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Physical Society |
publisher.none.fl_str_mv |
American Physical Society |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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