Phases of cold holographic QCD: Baryons, pions and rho mesons

Autores
Kovensky, Nicolas; Poole, Aaron; Schmitt, Andreas
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We improve the holographic description of isospin-asymmetric baryonic matter within the Witten-Sakai-Sugimoto model by accounting for a realistic pion mass, computing the pion condensate dynamically, and including rho meson condensation by allowing the gauge field in the bulk to be anisotropic. This description takes into account the coexistence of baryonic matter with pion and rho meson condensates. Our main result is the zero-temperature phase diagram in the plane of baryon and isospin chemical potentials. We find that the effective pion mass in the baryonic medium increases with baryon density and that, as a consequence, there is no pion condensation in neutron-star matter. Our improved description also predicts that baryons are disfavored at low baryon chemical potentials even for arbitrarily large isospin chemical potential. Instead, rho meson condensation sets in on top of the pion condensate at an isospin chemical potential of about 9.4 mπ. We further observe a highly non-monotonic phase boundary regarding the disappearance of pion condensation.
Fil: Kovensky, Nicolas. 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. Universite Paris-Saclay ;
Fil: Poole, Aaron. Kyung Hee University; Corea del Sur
Fil: Schmitt, Andreas. University of Southampton; Reino Unido
Materia
Holography
Quantum Chromodynamics
Phase diagram
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/255935
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Phases of cold holographic QCD: Baryons, pions and rho mesonsKovensky, NicolasPoole, AaronSchmitt, AndreasHolographyQuantum ChromodynamicsPhase diagramhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We improve the holographic description of isospin-asymmetric baryonic matter within the Witten-Sakai-Sugimoto model by accounting for a realistic pion mass, computing the pion condensate dynamically, and including rho meson condensation by allowing the gauge field in the bulk to be anisotropic. This description takes into account the coexistence of baryonic matter with pion and rho meson condensates. Our main result is the zero-temperature phase diagram in the plane of baryon and isospin chemical potentials. We find that the effective pion mass in the baryonic medium increases with baryon density and that, as a consequence, there is no pion condensation in neutron-star matter. Our improved description also predicts that baryons are disfavored at low baryon chemical potentials even for arbitrarily large isospin chemical potential. Instead, rho meson condensation sets in on top of the pion condensate at an isospin chemical potential of about 9.4 mπ. We further observe a highly non-monotonic phase boundary regarding the disappearance of pion condensation.Fil: Kovensky, Nicolas. 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. Universite Paris-Saclay ;Fil: Poole, Aaron. Kyung Hee University; Corea del SurFil: Schmitt, Andreas. University of Southampton; Reino UnidoSciPost Foundation2023-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/255935Kovensky, Nicolas; Poole, Aaron; Schmitt, Andreas; Phases of cold holographic QCD: Baryons, pions and rho mesons; SciPost Foundation; SciPost Physics; 15; 4; 10-2023; 1-412542-4653CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://scipost.org/10.21468/SciPostPhys.15.4.162info:eu-repo/semantics/altIdentifier/doi/10.21468/SciPostPhys.15.4.162info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:43:18Zoai:ri.conicet.gov.ar:11336/255935instacron: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 15:43:18.356CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Phases of cold holographic QCD: Baryons, pions and rho mesons
title Phases of cold holographic QCD: Baryons, pions and rho mesons
spellingShingle Phases of cold holographic QCD: Baryons, pions and rho mesons
Kovensky, Nicolas
Holography
Quantum Chromodynamics
Phase diagram
title_short Phases of cold holographic QCD: Baryons, pions and rho mesons
title_full Phases of cold holographic QCD: Baryons, pions and rho mesons
title_fullStr Phases of cold holographic QCD: Baryons, pions and rho mesons
title_full_unstemmed Phases of cold holographic QCD: Baryons, pions and rho mesons
title_sort Phases of cold holographic QCD: Baryons, pions and rho mesons
dc.creator.none.fl_str_mv Kovensky, Nicolas
Poole, Aaron
Schmitt, Andreas
author Kovensky, Nicolas
author_facet Kovensky, Nicolas
Poole, Aaron
Schmitt, Andreas
author_role author
author2 Poole, Aaron
Schmitt, Andreas
author2_role author
author
dc.subject.none.fl_str_mv Holography
Quantum Chromodynamics
Phase diagram
topic Holography
Quantum Chromodynamics
Phase diagram
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 improve the holographic description of isospin-asymmetric baryonic matter within the Witten-Sakai-Sugimoto model by accounting for a realistic pion mass, computing the pion condensate dynamically, and including rho meson condensation by allowing the gauge field in the bulk to be anisotropic. This description takes into account the coexistence of baryonic matter with pion and rho meson condensates. Our main result is the zero-temperature phase diagram in the plane of baryon and isospin chemical potentials. We find that the effective pion mass in the baryonic medium increases with baryon density and that, as a consequence, there is no pion condensation in neutron-star matter. Our improved description also predicts that baryons are disfavored at low baryon chemical potentials even for arbitrarily large isospin chemical potential. Instead, rho meson condensation sets in on top of the pion condensate at an isospin chemical potential of about 9.4 mπ. We further observe a highly non-monotonic phase boundary regarding the disappearance of pion condensation.
Fil: Kovensky, Nicolas. 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. Universite Paris-Saclay ;
Fil: Poole, Aaron. Kyung Hee University; Corea del Sur
Fil: Schmitt, Andreas. University of Southampton; Reino Unido
description We improve the holographic description of isospin-asymmetric baryonic matter within the Witten-Sakai-Sugimoto model by accounting for a realistic pion mass, computing the pion condensate dynamically, and including rho meson condensation by allowing the gauge field in the bulk to be anisotropic. This description takes into account the coexistence of baryonic matter with pion and rho meson condensates. Our main result is the zero-temperature phase diagram in the plane of baryon and isospin chemical potentials. We find that the effective pion mass in the baryonic medium increases with baryon density and that, as a consequence, there is no pion condensation in neutron-star matter. Our improved description also predicts that baryons are disfavored at low baryon chemical potentials even for arbitrarily large isospin chemical potential. Instead, rho meson condensation sets in on top of the pion condensate at an isospin chemical potential of about 9.4 mπ. We further observe a highly non-monotonic phase boundary regarding the disappearance of pion condensation.
publishDate 2023
dc.date.none.fl_str_mv 2023-10
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/11336/255935
Kovensky, Nicolas; Poole, Aaron; Schmitt, Andreas; Phases of cold holographic QCD: Baryons, pions and rho mesons; SciPost Foundation; SciPost Physics; 15; 4; 10-2023; 1-41
2542-4653
CONICET Digital
CONICET
url http://hdl.handle.net/11336/255935
identifier_str_mv Kovensky, Nicolas; Poole, Aaron; Schmitt, Andreas; Phases of cold holographic QCD: Baryons, pions and rho mesons; SciPost Foundation; SciPost Physics; 15; 4; 10-2023; 1-41
2542-4653
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://scipost.org/10.21468/SciPostPhys.15.4.162
info:eu-repo/semantics/altIdentifier/doi/10.21468/SciPostPhys.15.4.162
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv SciPost Foundation
publisher.none.fl_str_mv SciPost Foundation
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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