Cold magnetized quark matter at finite density in a nonlocal chiral quark model

Autores
Ferraris, Sebastián Alberto; Gomez Dumm, Daniel Alberto; Grunfeld, Ana Gabriela; Scoccola, Norberto Nerio
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the behavior of two-flavor dense quark matter under the influence of an external magnetic field in the framework of a nonlocal chiral quark model with separable interactions. The nonlocality is incorporated in the model by using a Gaussian form factor. It is found that for low and moderate values of magnetic field there is a decrease of the critical chiral restoration chemical potential µc, i.e. an inverse magnetic catalysis effect is observed. For larger values of eB the behavior of µc becomes more or less flat, depending on the parametrization. Within the considered parametrization range we do not find a significant growth of the critical chemical potential for large magnetic fields, as occurs in the case of the local NJL model.
Fil: Ferraris, Sebastián Alberto. Comisión Nacional de Energía Atómica; Argentina
Fil: Gomez Dumm, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata; Argentina
Fil: Grunfeld, Ana Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Scoccola, Norberto Nerio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Materia
NON-PERTURBATIVE QCD
NAMBU-JONA-LASINIO MODELS
PHASE DIAGRAM
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/155191
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/155191
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Cold magnetized quark matter at finite density in a nonlocal chiral quark modelFerraris, Sebastián AlbertoGomez Dumm, Daniel AlbertoGrunfeld, Ana GabrielaScoccola, Norberto NerioNON-PERTURBATIVE QCDNAMBU-JONA-LASINIO MODELSPHASE DIAGRAMhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the behavior of two-flavor dense quark matter under the influence of an external magnetic field in the framework of a nonlocal chiral quark model with separable interactions. The nonlocality is incorporated in the model by using a Gaussian form factor. It is found that for low and moderate values of magnetic field there is a decrease of the critical chiral restoration chemical potential µc, i.e. an inverse magnetic catalysis effect is observed. For larger values of eB the behavior of µc becomes more or less flat, depending on the parametrization. Within the considered parametrization range we do not find a significant growth of the critical chemical potential for large magnetic fields, as occurs in the case of the local NJL model.Fil: Ferraris, Sebastián Alberto. Comisión Nacional de Energía Atómica; ArgentinaFil: Gomez Dumm, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata; ArgentinaFil: Grunfeld, Ana Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; ArgentinaFil: Scoccola, Norberto Nerio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; ArgentinaSpringer2021-04info: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/11336/155191Ferraris, Sebastián Alberto; Gomez Dumm, Daniel Alberto; Grunfeld, Ana Gabriela; Scoccola, Norberto Nerio; Cold magnetized quark matter at finite density in a nonlocal chiral quark model; Springer; European Physical Journal A: Hadrons and Nuclei; 57; 141; 4-2021; 1-91434-6001CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1140%2Fepja%2Fs10050-021-00463-2info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/2103.00982info:eu-repo/semantics/altIdentifier/doi/10.1140/epja/s10050-021-00463-2info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:17Zoai:ri.conicet.gov.ar:11336/155191instacron: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:34982025-09-03 09:45:18.036CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Cold magnetized quark matter at finite density in a nonlocal chiral quark model
title Cold magnetized quark matter at finite density in a nonlocal chiral quark model
spellingShingle Cold magnetized quark matter at finite density in a nonlocal chiral quark model
Ferraris, Sebastián Alberto
NON-PERTURBATIVE QCD
NAMBU-JONA-LASINIO MODELS
PHASE DIAGRAM
title_short Cold magnetized quark matter at finite density in a nonlocal chiral quark model
title_full Cold magnetized quark matter at finite density in a nonlocal chiral quark model
title_fullStr Cold magnetized quark matter at finite density in a nonlocal chiral quark model
title_full_unstemmed Cold magnetized quark matter at finite density in a nonlocal chiral quark model
title_sort Cold magnetized quark matter at finite density in a nonlocal chiral quark model
dc.creator.none.fl_str_mv Ferraris, Sebastián Alberto
Gomez Dumm, Daniel Alberto
Grunfeld, Ana Gabriela
Scoccola, Norberto Nerio
author Ferraris, Sebastián Alberto
author_facet Ferraris, Sebastián Alberto
Gomez Dumm, Daniel Alberto
Grunfeld, Ana Gabriela
Scoccola, Norberto Nerio
author_role author
author2 Gomez Dumm, Daniel Alberto
Grunfeld, Ana Gabriela
Scoccola, Norberto Nerio
author2_role author
author
author
dc.subject.none.fl_str_mv NON-PERTURBATIVE QCD
NAMBU-JONA-LASINIO MODELS
PHASE DIAGRAM
topic NON-PERTURBATIVE QCD
NAMBU-JONA-LASINIO MODELS
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 study the behavior of two-flavor dense quark matter under the influence of an external magnetic field in the framework of a nonlocal chiral quark model with separable interactions. The nonlocality is incorporated in the model by using a Gaussian form factor. It is found that for low and moderate values of magnetic field there is a decrease of the critical chiral restoration chemical potential µc, i.e. an inverse magnetic catalysis effect is observed. For larger values of eB the behavior of µc becomes more or less flat, depending on the parametrization. Within the considered parametrization range we do not find a significant growth of the critical chemical potential for large magnetic fields, as occurs in the case of the local NJL model.
Fil: Ferraris, Sebastián Alberto. Comisión Nacional de Energía Atómica; Argentina
Fil: Gomez Dumm, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata; Argentina
Fil: Grunfeld, Ana Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Scoccola, Norberto Nerio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
description We study the behavior of two-flavor dense quark matter under the influence of an external magnetic field in the framework of a nonlocal chiral quark model with separable interactions. The nonlocality is incorporated in the model by using a Gaussian form factor. It is found that for low and moderate values of magnetic field there is a decrease of the critical chiral restoration chemical potential µc, i.e. an inverse magnetic catalysis effect is observed. For larger values of eB the behavior of µc becomes more or less flat, depending on the parametrization. Within the considered parametrization range we do not find a significant growth of the critical chemical potential for large magnetic fields, as occurs in the case of the local NJL model.
publishDate 2021
dc.date.none.fl_str_mv 2021-04
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/11336/155191
Ferraris, Sebastián Alberto; Gomez Dumm, Daniel Alberto; Grunfeld, Ana Gabriela; Scoccola, Norberto Nerio; Cold magnetized quark matter at finite density in a nonlocal chiral quark model; Springer; European Physical Journal A: Hadrons and Nuclei; 57; 141; 4-2021; 1-9
1434-6001
CONICET Digital
CONICET
url http://hdl.handle.net/11336/155191
identifier_str_mv Ferraris, Sebastián Alberto; Gomez Dumm, Daniel Alberto; Grunfeld, Ana Gabriela; Scoccola, Norberto Nerio; Cold magnetized quark matter at finite density in a nonlocal chiral quark model; Springer; European Physical Journal A: Hadrons and Nuclei; 57; 141; 4-2021; 1-9
1434-6001
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://link.springer.com/article/10.1140%2Fepja%2Fs10050-021-00463-2
info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/2103.00982
info:eu-repo/semantics/altIdentifier/doi/10.1140/epja/s10050-021-00463-2
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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 13.13397

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