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

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 magneti...

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Autores principales: Coppola, M., Gómez Dumm, Daniel Alberto, Noguera, S., Scoccola, Norberto Nerio
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Ciencias Exactas
Effective field theory
Form factors
Hadronic decays
Leptonic, semileptonic & radiative decays
Nonperturbative effects in field theory
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/130568
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-130568
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Effective field theory
Form factors
Hadronic decays
Leptonic, semileptonic & radiative decays
Nonperturbative effects in field theory
spellingShingle Ciencias Exactas
Effective field theory
Form factors
Hadronic decays
Leptonic, semileptonic & radiative decays
Nonperturbative effects in field theory
Coppola, M.
Gómez Dumm, Daniel Alberto
Noguera, S.
Scoccola, Norberto Nerio
Neutral and charged pion properties under strong magnetic fields in the NJL model
topic_facet Ciencias Exactas
Effective field theory
Form factors
Hadronic decays
Leptonic, semileptonic & radiative decays
Nonperturbative effects in field theory
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.
format Articulo
Articulo
author Coppola, M.
Gómez Dumm, Daniel Alberto
Noguera, S.
Scoccola, Norberto Nerio
author_facet Coppola, M.
Gómez Dumm, Daniel Alberto
Noguera, S.
Scoccola, Norberto Nerio
author_sort Coppola, M.
title Neutral and charged pion properties under strong magnetic fields in the NJL model
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
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/130568
work_keys_str_mv AT coppolam neutralandchargedpionpropertiesunderstrongmagneticfieldsinthenjlmodel
AT gomezdummdanielalberto neutralandchargedpionpropertiesunderstrongmagneticfieldsinthenjlmodel
AT nogueras neutralandchargedpionpropertiesunderstrongmagneticfieldsinthenjlmodel
AT scoccolanorbertonerio neutralandchargedpionpropertiesunderstrongmagneticfieldsinthenjlmodel
bdutipo_str Repositorios
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