Form factors of radiative pion decays in nonlocal chiral quark models

We study the radiative pion decay π +→e +ν eγ within nonlocal chiral quark models that include wave function renormalization. In this framework we analyze the momentum dependence of the vector form factor F V(q2) and the slope of the axial-vector form factor F A(q2) at threshold. Our results are com...

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Detalles Bibliográficos
Autores principales: Gómez Dumm, Daniel Alberto, Noguera, S., Scoccola, Norberto Nerio
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2012
Materias:
Física
Pion form factor
Radiative pion decay
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/96131
https://ri.conicet.gov.ar/11336/74532
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.86.074020
https://arxiv.org/abs/1205.2730
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-96131
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Pion form factor
Radiative pion decay
spellingShingle Física
Pion form factor
Radiative pion decay
Gómez Dumm, Daniel Alberto
Noguera, S.
Scoccola, Norberto Nerio
Form factors of radiative pion decays in nonlocal chiral quark models
topic_facet Física
Pion form factor
Radiative pion decay
description We study the radiative pion decay π +→e +ν eγ within nonlocal chiral quark models that include wave function renormalization. In this framework we analyze the momentum dependence of the vector form factor F V(q2) and the slope of the axial-vector form factor F A(q2) at threshold. Our results are compared with available experimental information and with the predictions given by the Nambu-Jona-Lasinio model. In addition we calculate the low energy constants δ 5 and δ 6, comparing our results with the values obtained in chiral perturbation theory.
format Articulo
Preprint
author Gómez Dumm, Daniel Alberto
Noguera, S.
Scoccola, Norberto Nerio
author_facet Gómez Dumm, Daniel Alberto
Noguera, S.
Scoccola, Norberto Nerio
author_sort Gómez Dumm, Daniel Alberto
title Form factors of radiative pion decays in nonlocal chiral quark models
title_short Form factors of radiative pion decays in nonlocal chiral quark models
title_full Form factors of radiative pion decays in nonlocal chiral quark models
title_fullStr Form factors of radiative pion decays in nonlocal chiral quark models
title_full_unstemmed Form factors of radiative pion decays in nonlocal chiral quark models
title_sort form factors of radiative pion decays in nonlocal chiral quark models
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/96131
https://ri.conicet.gov.ar/11336/74532
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.86.074020
https://arxiv.org/abs/1205.2730
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