Critical spectrum of fluctuations for deconfinement at protoneutron star cores

Autores
Lugones, G.; Grunfeld, Ana Gabriela
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the deconfinement of hadronic matter into quark matter in a protoneutron star focusing on the effects of the finite size on the formation of just deconfined color superconducting quark droplets embedded in the hadronic environment. The hadronic phase is modeled by the nonlinear Walecka model at finite temperature including the baryon octet and neutrino trapping. For quark matter we use an SU(3)f Nambu-Jona-Lasinio model including color superconductivity. The finite size effects on the just deconfined droplets are considered in the frame of the multiple reflection expansion. In addition, we consider that just deconfined quark matter is transitorily out of equilibrium respect to weak interaction, and we impose color neutrality and flavor conservation during the transition. We calculate self-consistently the surface tension and curvature energy density of the quark hadron interphase and find that it is larger than the values typically assumed in the literature. The transition density is calculated for drops of different sizes, and at different temperatures and neutrino trapping conditions. Then, we show that energy density fluctuations are much more relevant for deconfinement than temperature and neutrino density fluctuations. We calculate the critical size spectrum of energy density fluctuations that allows deconfinement as well as the nucleation rate of each critical bubble. We find that drops with any radii smaller than 800fm can be formed at a huge rate when matter achieves the bulk transition limit of 5-6 times the nuclear saturation density.
Fil: Lugones, G.. Universidad Federal do Abc; Brasil
Fil: Grunfeld, Ana Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Constituyentes); Argentina
Materia
Chiral Lagrangians
Quark deconfinement
Equations of state of neutron-star matter
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/188905
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/188905
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Critical spectrum of fluctuations for deconfinement at protoneutron star coresLugones, G.Grunfeld, Ana GabrielaChiral LagrangiansQuark deconfinementEquations of state of neutron-star matterhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the deconfinement of hadronic matter into quark matter in a protoneutron star focusing on the effects of the finite size on the formation of just deconfined color superconducting quark droplets embedded in the hadronic environment. The hadronic phase is modeled by the nonlinear Walecka model at finite temperature including the baryon octet and neutrino trapping. For quark matter we use an SU(3)f Nambu-Jona-Lasinio model including color superconductivity. The finite size effects on the just deconfined droplets are considered in the frame of the multiple reflection expansion. In addition, we consider that just deconfined quark matter is transitorily out of equilibrium respect to weak interaction, and we impose color neutrality and flavor conservation during the transition. We calculate self-consistently the surface tension and curvature energy density of the quark hadron interphase and find that it is larger than the values typically assumed in the literature. The transition density is calculated for drops of different sizes, and at different temperatures and neutrino trapping conditions. Then, we show that energy density fluctuations are much more relevant for deconfinement than temperature and neutrino density fluctuations. We calculate the critical size spectrum of energy density fluctuations that allows deconfinement as well as the nucleation rate of each critical bubble. We find that drops with any radii smaller than 800fm can be formed at a huge rate when matter achieves the bulk transition limit of 5-6 times the nuclear saturation density.Fil: Lugones, G.. Universidad Federal do Abc; BrasilFil: Grunfeld, Ana Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Constituyentes); ArgentinaAmerican Physical Society2011-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/188905Lugones, G.; Grunfeld, Ana Gabriela; Critical spectrum of fluctuations for deconfinement at protoneutron star cores; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 84; 8; 10-2011; 1-111550-7998CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://prd.aps.org/abstract/PRD/v84/i8/e085003info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.84.085003info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:16:58Zoai:ri.conicet.gov.ar:11336/188905instacron: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:34982025-10-15 15:16:59.172CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Critical spectrum of fluctuations for deconfinement at protoneutron star cores
title Critical spectrum of fluctuations for deconfinement at protoneutron star cores
spellingShingle Critical spectrum of fluctuations for deconfinement at protoneutron star cores
Lugones, G.
Chiral Lagrangians
Quark deconfinement
Equations of state of neutron-star matter
title_short Critical spectrum of fluctuations for deconfinement at protoneutron star cores
title_full Critical spectrum of fluctuations for deconfinement at protoneutron star cores
title_fullStr Critical spectrum of fluctuations for deconfinement at protoneutron star cores
title_full_unstemmed Critical spectrum of fluctuations for deconfinement at protoneutron star cores
title_sort Critical spectrum of fluctuations for deconfinement at protoneutron star cores
dc.creator.none.fl_str_mv Lugones, G.
Grunfeld, Ana Gabriela
author Lugones, G.
author_facet Lugones, G.
Grunfeld, Ana Gabriela
author_role author
author2 Grunfeld, Ana Gabriela
author2_role author
dc.subject.none.fl_str_mv Chiral Lagrangians
Quark deconfinement
Equations of state of neutron-star matter
topic Chiral Lagrangians
Quark deconfinement
Equations of state of neutron-star matter
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study the deconfinement of hadronic matter into quark matter in a protoneutron star focusing on the effects of the finite size on the formation of just deconfined color superconducting quark droplets embedded in the hadronic environment. The hadronic phase is modeled by the nonlinear Walecka model at finite temperature including the baryon octet and neutrino trapping. For quark matter we use an SU(3)f Nambu-Jona-Lasinio model including color superconductivity. The finite size effects on the just deconfined droplets are considered in the frame of the multiple reflection expansion. In addition, we consider that just deconfined quark matter is transitorily out of equilibrium respect to weak interaction, and we impose color neutrality and flavor conservation during the transition. We calculate self-consistently the surface tension and curvature energy density of the quark hadron interphase and find that it is larger than the values typically assumed in the literature. The transition density is calculated for drops of different sizes, and at different temperatures and neutrino trapping conditions. Then, we show that energy density fluctuations are much more relevant for deconfinement than temperature and neutrino density fluctuations. We calculate the critical size spectrum of energy density fluctuations that allows deconfinement as well as the nucleation rate of each critical bubble. We find that drops with any radii smaller than 800fm can be formed at a huge rate when matter achieves the bulk transition limit of 5-6 times the nuclear saturation density.
Fil: Lugones, G.. Universidad Federal do Abc; Brasil
Fil: Grunfeld, Ana Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Constituyentes); Argentina
description We study the deconfinement of hadronic matter into quark matter in a protoneutron star focusing on the effects of the finite size on the formation of just deconfined color superconducting quark droplets embedded in the hadronic environment. The hadronic phase is modeled by the nonlinear Walecka model at finite temperature including the baryon octet and neutrino trapping. For quark matter we use an SU(3)f Nambu-Jona-Lasinio model including color superconductivity. The finite size effects on the just deconfined droplets are considered in the frame of the multiple reflection expansion. In addition, we consider that just deconfined quark matter is transitorily out of equilibrium respect to weak interaction, and we impose color neutrality and flavor conservation during the transition. We calculate self-consistently the surface tension and curvature energy density of the quark hadron interphase and find that it is larger than the values typically assumed in the literature. The transition density is calculated for drops of different sizes, and at different temperatures and neutrino trapping conditions. Then, we show that energy density fluctuations are much more relevant for deconfinement than temperature and neutrino density fluctuations. We calculate the critical size spectrum of energy density fluctuations that allows deconfinement as well as the nucleation rate of each critical bubble. We find that drops with any radii smaller than 800fm can be formed at a huge rate when matter achieves the bulk transition limit of 5-6 times the nuclear saturation density.
publishDate 2011
dc.date.none.fl_str_mv 2011-10
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/11336/188905
Lugones, G.; Grunfeld, Ana Gabriela; Critical spectrum of fluctuations for deconfinement at protoneutron star cores; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 84; 8; 10-2011; 1-11
1550-7998
CONICET Digital
CONICET
url http://hdl.handle.net/11336/188905
identifier_str_mv Lugones, G.; Grunfeld, Ana Gabriela; Critical spectrum of fluctuations for deconfinement at protoneutron star cores; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 84; 8; 10-2011; 1-11
1550-7998
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://prd.aps.org/abstract/PRD/v84/i8/e085003
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.84.085003
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
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
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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