Neutral and charged pion properties under strong magnetic fields in the NJL model

Autores
Coppola, M.; Gómez Dumm, Daniel Alberto; Noguera, S.; Scoccola, Norberto Nerio
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the framework of the Nambu-Jona-Lasino (NJL) model, we study the effect of an intense external uniform magnetic field on neutral and charged pion masses and decay form factors. In particular, the treatment of charged pions is carried out on the basis of the Ritus eigenfunction approach to magnetized relativistic systems. Our analysis shows that in the presence of the magnetic field three and four nonvanishing pion-to-vacuum hadronic form factors can be obtained for the case of the neutral and charged pions, respectively. As expected, it is seen that for nonzero magnetic field the π⁰ meson can still be treated as a pseudo Nambu-Goldstone boson, and consequently the corresponding form factors are shown to satisfy various chiral relations. For definite parametrizations of the model, numerical results for π⁰ and π± masses and decay constants are obtained and compared with previous calculations given in the literature.
Facultad de Ciencias Exactas
Instituto de Física La Plata
Materia
Ciencias Exactas
Effective field theory
Form factors
Hadronic decays
Leptonic, semileptonic & radiative decays
Nonperturbative effects in field theory
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/130568

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network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Neutral and charged pion properties under strong magnetic fields in the NJL modelCoppola, M.Gómez Dumm, Daniel AlbertoNoguera, S.Scoccola, Norberto NerioCiencias ExactasEffective field theoryForm factorsHadronic decaysLeptonic, semileptonic & radiative decaysNonperturbative effects in field theoryIn the framework of the Nambu-Jona-Lasino (NJL) model, we study the effect of an intense external uniform magnetic field on neutral and charged pion masses and decay form factors. In particular, the treatment of charged pions is carried out on the basis of the Ritus eigenfunction approach to magnetized relativistic systems. Our analysis shows that in the presence of the magnetic field three and four nonvanishing pion-to-vacuum hadronic form factors can be obtained for the case of the neutral and charged pions, respectively. As expected, it is seen that for nonzero magnetic field the π⁰ meson can still be treated as a pseudo Nambu-Goldstone boson, and consequently the corresponding form factors are shown to satisfy various chiral relations. For definite parametrizations of the model, numerical results for π⁰ and π<sup>±</sup> masses and decay constants are obtained and compared with previous calculations given in the literature.Facultad de Ciencias ExactasInstituto de Física La Plata2019-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/130568enginfo:eu-repo/semantics/altIdentifier/issn/2470-0010info:eu-repo/semantics/altIdentifier/issn/2470-0029info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.100.054014info:eu-repo/semantics/altIdentifier/arxiv/1907.05840info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:32:37Zoai:sedici.unlp.edu.ar:10915/130568Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:32:38.002SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Neutral and charged pion properties under strong magnetic fields in the NJL model
title Neutral and charged pion properties under strong magnetic fields in the NJL model
spellingShingle Neutral and charged pion properties under strong magnetic fields in the NJL model
Coppola, M.
Ciencias Exactas
Effective field theory
Form factors
Hadronic decays
Leptonic, semileptonic & radiative decays
Nonperturbative effects in field theory
title_short Neutral and charged pion properties under strong magnetic fields in the NJL model
title_full Neutral and charged pion properties under strong magnetic fields in the NJL model
title_fullStr Neutral and charged pion properties under strong magnetic fields in the NJL model
title_full_unstemmed Neutral and charged pion properties under strong magnetic fields in the NJL model
title_sort Neutral and charged pion properties under strong magnetic fields in the NJL model
dc.creator.none.fl_str_mv Coppola, M.
Gómez Dumm, Daniel Alberto
Noguera, S.
Scoccola, Norberto Nerio
author Coppola, M.
author_facet Coppola, M.
Gómez Dumm, Daniel Alberto
Noguera, S.
Scoccola, Norberto Nerio
author_role author
author2 Gómez Dumm, Daniel Alberto
Noguera, S.
Scoccola, Norberto Nerio
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Effective field theory
Form factors
Hadronic decays
Leptonic, semileptonic & radiative decays
Nonperturbative effects in field theory
topic Ciencias Exactas
Effective field theory
Form factors
Hadronic decays
Leptonic, semileptonic & radiative decays
Nonperturbative effects in field theory
dc.description.none.fl_txt_mv In the framework of the Nambu-Jona-Lasino (NJL) model, we study the effect of an intense external uniform magnetic field on neutral and charged pion masses and decay form factors. In particular, the treatment of charged pions is carried out on the basis of the Ritus eigenfunction approach to magnetized relativistic systems. Our analysis shows that in the presence of the magnetic field three and four nonvanishing pion-to-vacuum hadronic form factors can be obtained for the case of the neutral and charged pions, respectively. As expected, it is seen that for nonzero magnetic field the π⁰ meson can still be treated as a pseudo Nambu-Goldstone boson, and consequently the corresponding form factors are shown to satisfy various chiral relations. For definite parametrizations of the model, numerical results for π⁰ and π<sup>±</sup> masses and decay constants are obtained and compared with previous calculations given in the literature.
Facultad de Ciencias Exactas
Instituto de Física La Plata
description In the framework of the Nambu-Jona-Lasino (NJL) model, we study the effect of an intense external uniform magnetic field on neutral and charged pion masses and decay form factors. In particular, the treatment of charged pions is carried out on the basis of the Ritus eigenfunction approach to magnetized relativistic systems. Our analysis shows that in the presence of the magnetic field three and four nonvanishing pion-to-vacuum hadronic form factors can be obtained for the case of the neutral and charged pions, respectively. As expected, it is seen that for nonzero magnetic field the π⁰ meson can still be treated as a pseudo Nambu-Goldstone boson, and consequently the corresponding form factors are shown to satisfy various chiral relations. For definite parametrizations of the model, numerical results for π⁰ and π<sup>±</sup> masses and decay constants are obtained and compared with previous calculations given in the literature.
publishDate 2019
dc.date.none.fl_str_mv 2019-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/130568
url http://sedici.unlp.edu.ar/handle/10915/130568
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/2470-0010
info:eu-repo/semantics/altIdentifier/issn/2470-0029
info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.100.054014
info:eu-repo/semantics/altIdentifier/arxiv/1907.05840
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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