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
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/130568
Ver los metadatos del registro completo
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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:UNLP2025-10-22T17:13:32Zoai: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:13292025-10-22 17:13:32.315SEDICI (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 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/130568 |
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http://sedici.unlp.edu.ar/handle/10915/130568 |
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eng |
| language |
eng |
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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 |
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openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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