Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram

Autores
Allen, Pablo Guillermo; Scoccola, Norberto Nerio
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The phase structure of magnetized cold quark matter is analyzed in the framework of the two-flavor Nambu-Jona-Lasinio models paying special attention to its dependence on the model parameters as different values within the phenomenological allowed range are considered. We first discuss the simpler chiral limit case, and then the more realistic situation of finite current masses. We show that in spite of the difference in the nature of some transitions, both cases are alike and exhibit a rather rich phase structure for a significant range of acceptable parameters. A simplification of the phase structure is obtained as parameters leading to larger values of the dressed quark mass in the vacuum are considered. Finally, we consider the so-called "inverse catalysis effect" showing that in some phases it implies an actual decrease of the order parameter as the magnetic field increases.
Fil: Allen, Pablo Guillermo. 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. Universidad Favaloro. Facultad de Ingeniería y Ciencias Exactas y Naturales; Argentina
Materia
Quark matter
Strong magnetic fields
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:11336/88230
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/88230
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network_name_str CONICET Digital (CONICET)
spelling Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagramAllen, Pablo GuillermoScoccola, Norberto NerioQuark matterStrong magnetic fieldshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The phase structure of magnetized cold quark matter is analyzed in the framework of the two-flavor Nambu-Jona-Lasinio models paying special attention to its dependence on the model parameters as different values within the phenomenological allowed range are considered. We first discuss the simpler chiral limit case, and then the more realistic situation of finite current masses. We show that in spite of the difference in the nature of some transitions, both cases are alike and exhibit a rather rich phase structure for a significant range of acceptable parameters. A simplification of the phase structure is obtained as parameters leading to larger values of the dressed quark mass in the vacuum are considered. Finally, we consider the so-called "inverse catalysis effect" showing that in some phases it implies an actual decrease of the order parameter as the magnetic field increases.Fil: Allen, Pablo Guillermo. 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; Argentina. Universidad Favaloro. Facultad de Ingeniería y Ciencias Exactas y Naturales; ArgentinaAmerican Physical Society2013-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/88230Allen, Pablo Guillermo; Scoccola, Norberto Nerio; Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 88; 9; 11-2013; 940051-94005171550-7998CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.88.094005info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.88.094005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:05:45Zoai:ri.conicet.gov.ar:11336/88230instacron: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:34982025-09-10 13:05:45.531CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram
title Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram
spellingShingle Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram
Allen, Pablo Guillermo
Quark matter
Strong magnetic fields
title_short Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram
title_full Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram
title_fullStr Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram
title_full_unstemmed Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram
title_sort Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram
dc.creator.none.fl_str_mv Allen, Pablo Guillermo
Scoccola, Norberto Nerio
author Allen, Pablo Guillermo
author_facet Allen, Pablo Guillermo
Scoccola, Norberto Nerio
author_role author
author2 Scoccola, Norberto Nerio
author2_role author
dc.subject.none.fl_str_mv Quark matter
Strong magnetic fields
topic Quark matter
Strong magnetic fields
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The phase structure of magnetized cold quark matter is analyzed in the framework of the two-flavor Nambu-Jona-Lasinio models paying special attention to its dependence on the model parameters as different values within the phenomenological allowed range are considered. We first discuss the simpler chiral limit case, and then the more realistic situation of finite current masses. We show that in spite of the difference in the nature of some transitions, both cases are alike and exhibit a rather rich phase structure for a significant range of acceptable parameters. A simplification of the phase structure is obtained as parameters leading to larger values of the dressed quark mass in the vacuum are considered. Finally, we consider the so-called "inverse catalysis effect" showing that in some phases it implies an actual decrease of the order parameter as the magnetic field increases.
Fil: Allen, Pablo Guillermo. 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. Universidad Favaloro. Facultad de Ingeniería y Ciencias Exactas y Naturales; Argentina
description The phase structure of magnetized cold quark matter is analyzed in the framework of the two-flavor Nambu-Jona-Lasinio models paying special attention to its dependence on the model parameters as different values within the phenomenological allowed range are considered. We first discuss the simpler chiral limit case, and then the more realistic situation of finite current masses. We show that in spite of the difference in the nature of some transitions, both cases are alike and exhibit a rather rich phase structure for a significant range of acceptable parameters. A simplification of the phase structure is obtained as parameters leading to larger values of the dressed quark mass in the vacuum are considered. Finally, we consider the so-called "inverse catalysis effect" showing that in some phases it implies an actual decrease of the order parameter as the magnetic field increases.
publishDate 2013
dc.date.none.fl_str_mv 2013-11
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/11336/88230
Allen, Pablo Guillermo; Scoccola, Norberto Nerio; Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 88; 9; 11-2013; 940051-9400517
1550-7998
CONICET Digital
CONICET
url http://hdl.handle.net/11336/88230
identifier_str_mv Allen, Pablo Guillermo; Scoccola, Norberto Nerio; Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 88; 9; 11-2013; 940051-9400517
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/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.88.094005
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.88.094005
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 12.993085

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