Topological susceptibility and axion potential in two-flavor superconductive quark matter

Autores
Murgana, Fabrizio; Alvarez Castillo, David E.; Grunfeld, Ana Gabriela; Ruggieri, Marco
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the potential of the axion, a, of Quantum Chromodynamics, in the two-flavor colorsuperconducting phase of cold and dense quark matter. We adopt a Nambu-Jona-Lasinio-like model. Our interaction contains two terms, one preserving and one breaking the Uð1ÞA symmetry: the latter is responsible of the coupling of axions to quarks. We introduce two quark condensates, hL and hR, describing condensation for left-handed and right-handed quarks respectively; we then study the loci of the minima of the thermodynamic potential, Ω, in the (hL; hR) plane, noticing how the instanton-induced interaction favors condensation in the scalar channel when the θ angle, θ ¼ a=fa, vanishes. Increasing θ we find a phase transition where the scalar condensate rotates into a pseudoscalar one. We present an analytical result for the topological susceptibility, χ, in the superconductive phase, which stands both at zero and at finite temperature. Finally, we compute the axion mass and its self-coupling. In particular, the axion mass ma is related to the full topological susceptibility via χ = m_a^2 f_a^2; hence our result for χ gives an analytical result form_a in the superconductive phase of high-density Quantum Chromodynamics.
Fil: Murgana, Fabrizio. University of Catania; Italia. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Alvarez Castillo, David E.. Polish Academy of Sciences; Argentina. University of Wroclaw; Polonia. Universidad Autónoma de Nuevo León; México
Fil: Grunfeld, Ana Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Ruggieri, Marco. University of Catania; Italia. Istituto Nazionale di Fisica Nucleare; Italia
Materia
Axions
Topological susceptibility
Color superconductivity
Deconfinement
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:11336/253275
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/253275
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Topological susceptibility and axion potential in two-flavor superconductive quark matterMurgana, FabrizioAlvarez Castillo, David E.Grunfeld, Ana GabrielaRuggieri, MarcoAxionsTopological susceptibilityColor superconductivityDeconfinementhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the potential of the axion, a, of Quantum Chromodynamics, in the two-flavor colorsuperconducting phase of cold and dense quark matter. We adopt a Nambu-Jona-Lasinio-like model. Our interaction contains two terms, one preserving and one breaking the Uð1ÞA symmetry: the latter is responsible of the coupling of axions to quarks. We introduce two quark condensates, hL and hR, describing condensation for left-handed and right-handed quarks respectively; we then study the loci of the minima of the thermodynamic potential, Ω, in the (hL; hR) plane, noticing how the instanton-induced interaction favors condensation in the scalar channel when the θ angle, θ ¼ a=fa, vanishes. Increasing θ we find a phase transition where the scalar condensate rotates into a pseudoscalar one. We present an analytical result for the topological susceptibility, χ, in the superconductive phase, which stands both at zero and at finite temperature. Finally, we compute the axion mass and its self-coupling. In particular, the axion mass ma is related to the full topological susceptibility via χ = m_a^2 f_a^2; hence our result for χ gives an analytical result form_a in the superconductive phase of high-density Quantum Chromodynamics.Fil: Murgana, Fabrizio. University of Catania; Italia. Istituto Nazionale di Fisica Nucleare; ItaliaFil: Alvarez Castillo, David E.. Polish Academy of Sciences; Argentina. University of Wroclaw; Polonia. Universidad Autónoma de Nuevo León; MéxicoFil: Grunfeld, Ana Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; ArgentinaFil: Ruggieri, Marco. University of Catania; Italia. Istituto Nazionale di Fisica Nucleare; ItaliaAmerican Physical Society2024-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/253275Murgana, Fabrizio; Alvarez Castillo, David E.; Grunfeld, Ana Gabriela; Ruggieri, Marco; Topological susceptibility and axion potential in two-flavor superconductive quark matter; American Physical Society; Physical Review D; 110; 1; 7-2024; 1-170556-28212470-0029CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.110.014042info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.110.014042info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:58Zoai:ri.conicet.gov.ar:11336/253275instacron: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 09:37:58.893CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Topological susceptibility and axion potential in two-flavor superconductive quark matter
title Topological susceptibility and axion potential in two-flavor superconductive quark matter
spellingShingle Topological susceptibility and axion potential in two-flavor superconductive quark matter
Murgana, Fabrizio
Axions
Topological susceptibility
Color superconductivity
Deconfinement
title_short Topological susceptibility and axion potential in two-flavor superconductive quark matter
title_full Topological susceptibility and axion potential in two-flavor superconductive quark matter
title_fullStr Topological susceptibility and axion potential in two-flavor superconductive quark matter
title_full_unstemmed Topological susceptibility and axion potential in two-flavor superconductive quark matter
title_sort Topological susceptibility and axion potential in two-flavor superconductive quark matter
dc.creator.none.fl_str_mv Murgana, Fabrizio
Alvarez Castillo, David E.
Grunfeld, Ana Gabriela
Ruggieri, Marco
author Murgana, Fabrizio
author_facet Murgana, Fabrizio
Alvarez Castillo, David E.
Grunfeld, Ana Gabriela
Ruggieri, Marco
author_role author
author2 Alvarez Castillo, David E.
Grunfeld, Ana Gabriela
Ruggieri, Marco
author2_role author
author
author
dc.subject.none.fl_str_mv Axions
Topological susceptibility
Color superconductivity
Deconfinement
topic Axions
Topological susceptibility
Color superconductivity
Deconfinement
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 potential of the axion, a, of Quantum Chromodynamics, in the two-flavor colorsuperconducting phase of cold and dense quark matter. We adopt a Nambu-Jona-Lasinio-like model. Our interaction contains two terms, one preserving and one breaking the Uð1ÞA symmetry: the latter is responsible of the coupling of axions to quarks. We introduce two quark condensates, hL and hR, describing condensation for left-handed and right-handed quarks respectively; we then study the loci of the minima of the thermodynamic potential, Ω, in the (hL; hR) plane, noticing how the instanton-induced interaction favors condensation in the scalar channel when the θ angle, θ ¼ a=fa, vanishes. Increasing θ we find a phase transition where the scalar condensate rotates into a pseudoscalar one. We present an analytical result for the topological susceptibility, χ, in the superconductive phase, which stands both at zero and at finite temperature. Finally, we compute the axion mass and its self-coupling. In particular, the axion mass ma is related to the full topological susceptibility via χ = m_a^2 f_a^2; hence our result for χ gives an analytical result form_a in the superconductive phase of high-density Quantum Chromodynamics.
Fil: Murgana, Fabrizio. University of Catania; Italia. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Alvarez Castillo, David E.. Polish Academy of Sciences; Argentina. University of Wroclaw; Polonia. Universidad Autónoma de Nuevo León; México
Fil: Grunfeld, Ana Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Ruggieri, Marco. University of Catania; Italia. Istituto Nazionale di Fisica Nucleare; Italia
description We study the potential of the axion, a, of Quantum Chromodynamics, in the two-flavor colorsuperconducting phase of cold and dense quark matter. We adopt a Nambu-Jona-Lasinio-like model. Our interaction contains two terms, one preserving and one breaking the Uð1ÞA symmetry: the latter is responsible of the coupling of axions to quarks. We introduce two quark condensates, hL and hR, describing condensation for left-handed and right-handed quarks respectively; we then study the loci of the minima of the thermodynamic potential, Ω, in the (hL; hR) plane, noticing how the instanton-induced interaction favors condensation in the scalar channel when the θ angle, θ ¼ a=fa, vanishes. Increasing θ we find a phase transition where the scalar condensate rotates into a pseudoscalar one. We present an analytical result for the topological susceptibility, χ, in the superconductive phase, which stands both at zero and at finite temperature. Finally, we compute the axion mass and its self-coupling. In particular, the axion mass ma is related to the full topological susceptibility via χ = m_a^2 f_a^2; hence our result for χ gives an analytical result form_a in the superconductive phase of high-density Quantum Chromodynamics.
publishDate 2024
dc.date.none.fl_str_mv 2024-07
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/11336/253275
Murgana, Fabrizio; Alvarez Castillo, David E.; Grunfeld, Ana Gabriela; Ruggieri, Marco; Topological susceptibility and axion potential in two-flavor superconductive quark matter; American Physical Society; Physical Review D; 110; 1; 7-2024; 1-17
0556-2821
2470-0029
CONICET Digital
CONICET
url http://hdl.handle.net/11336/253275
identifier_str_mv Murgana, Fabrizio; Alvarez Castillo, David E.; Grunfeld, Ana Gabriela; Ruggieri, Marco; Topological susceptibility and axion potential in two-flavor superconductive quark matter; American Physical Society; Physical Review D; 110; 1; 7-2024; 1-17
0556-2821
2470-0029
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://journals.aps.org/prd/abstract/10.1103/PhysRevD.110.014042
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.110.014042
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 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 13.070432

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