Pion radiative weak decays in nonlocal chiral quark models

Autores
Gomez Dumm, Daniel Alberto; Noguera, Santiago; Scoccola, Norberto Nerio
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyze the radiative pion decay π+ → e+νeγ within nonlocal chiral quark models that include wave function renormalization. In this framework we calculate the vector and axial-vector form factors F V and F A at q2 = 0 — where q2 is the e+νe squared invariant mass — and the slope a of F V (q2) at q2 → 0. The calculations are carried out considering different nonlocal form factors, in particular those taken from lattice QCD evaluations, showing a reasonable agreement with the corresponding experimental data. The comparison of our results with those obtained in the (local) NJL model and the relation of F V and a with the form factor in π0 → γ ∗γ decays are discussed.
Fil: Gomez Dumm, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Fil: Noguera, Santiago. Universidad de Valencia; España. Consejo Superior de Investigaciones Científicas; España
Fil: Scoccola, Norberto Nerio. Comision Nacional de Energia Atomica. Gerencia de Area de Investigaciones y Aplicaciones No Nucleares (cac).; Argentina. Universidad Favaloro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
NONLOCAL QUARK MODELS
PION RADIATIVE WEAK DECAYS
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:11336/192757
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Pion radiative weak decays in nonlocal chiral quark modelsGomez Dumm, Daniel AlbertoNoguera, SantiagoScoccola, Norberto NerioNONLOCAL QUARK MODELSPION RADIATIVE WEAK DECAYShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We analyze the radiative pion decay π+ → e+νeγ within nonlocal chiral quark models that include wave function renormalization. In this framework we calculate the vector and axial-vector form factors F V and F A at q2 = 0 — where q2 is the e+νe squared invariant mass — and the slope a of F V (q2) at q2 → 0. The calculations are carried out considering different nonlocal form factors, in particular those taken from lattice QCD evaluations, showing a reasonable agreement with the corresponding experimental data. The comparison of our results with those obtained in the (local) NJL model and the relation of F V and a with the form factor in π0 → γ ∗γ decays are discussed.Fil: Gomez Dumm, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Noguera, Santiago. Universidad de Valencia; España. Consejo Superior de Investigaciones Científicas; EspañaFil: Scoccola, Norberto Nerio. Comision Nacional de Energia Atomica. Gerencia de Area de Investigaciones y Aplicaciones No Nucleares (cac).; Argentina. Universidad Favaloro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier Science2011-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/192757Gomez Dumm, Daniel Alberto; Noguera, Santiago; Scoccola, Norberto Nerio; Pion radiative weak decays in nonlocal chiral quark models; Elsevier Science; Physics Letters B; 698; 3; 3-2011; 236-2420370-26931873-2445CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0370269311002346info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2011.03.002info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1011.6403info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:38:56Zoai:ri.conicet.gov.ar:11336/192757instacron: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:34982025-11-12 09:38:56.532CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Pion radiative weak decays in nonlocal chiral quark models
title Pion radiative weak decays in nonlocal chiral quark models
spellingShingle Pion radiative weak decays in nonlocal chiral quark models
Gomez Dumm, Daniel Alberto
NONLOCAL QUARK MODELS
PION RADIATIVE WEAK DECAYS
title_short Pion radiative weak decays in nonlocal chiral quark models
title_full Pion radiative weak decays in nonlocal chiral quark models
title_fullStr Pion radiative weak decays in nonlocal chiral quark models
title_full_unstemmed Pion radiative weak decays in nonlocal chiral quark models
title_sort Pion radiative weak decays in nonlocal chiral quark models
dc.creator.none.fl_str_mv Gomez Dumm, Daniel Alberto
Noguera, Santiago
Scoccola, Norberto Nerio
author Gomez Dumm, Daniel Alberto
author_facet Gomez Dumm, Daniel Alberto
Noguera, Santiago
Scoccola, Norberto Nerio
author_role author
author2 Noguera, Santiago
Scoccola, Norberto Nerio
author2_role author
author
dc.subject.none.fl_str_mv NONLOCAL QUARK MODELS
PION RADIATIVE WEAK DECAYS
topic NONLOCAL QUARK MODELS
PION RADIATIVE WEAK DECAYS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We analyze the radiative pion decay π+ → e+νeγ within nonlocal chiral quark models that include wave function renormalization. In this framework we calculate the vector and axial-vector form factors F V and F A at q2 = 0 — where q2 is the e+νe squared invariant mass — and the slope a of F V (q2) at q2 → 0. The calculations are carried out considering different nonlocal form factors, in particular those taken from lattice QCD evaluations, showing a reasonable agreement with the corresponding experimental data. The comparison of our results with those obtained in the (local) NJL model and the relation of F V and a with the form factor in π0 → γ ∗γ decays are discussed.
Fil: Gomez Dumm, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Fil: Noguera, Santiago. Universidad de Valencia; España. Consejo Superior de Investigaciones Científicas; España
Fil: Scoccola, Norberto Nerio. Comision Nacional de Energia Atomica. Gerencia de Area de Investigaciones y Aplicaciones No Nucleares (cac).; Argentina. Universidad Favaloro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description We analyze the radiative pion decay π+ → e+νeγ within nonlocal chiral quark models that include wave function renormalization. In this framework we calculate the vector and axial-vector form factors F V and F A at q2 = 0 — where q2 is the e+νe squared invariant mass — and the slope a of F V (q2) at q2 → 0. The calculations are carried out considering different nonlocal form factors, in particular those taken from lattice QCD evaluations, showing a reasonable agreement with the corresponding experimental data. The comparison of our results with those obtained in the (local) NJL model and the relation of F V and a with the form factor in π0 → γ ∗γ decays are discussed.
publishDate 2011
dc.date.none.fl_str_mv 2011-03
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/11336/192757
Gomez Dumm, Daniel Alberto; Noguera, Santiago; Scoccola, Norberto Nerio; Pion radiative weak decays in nonlocal chiral quark models; Elsevier Science; Physics Letters B; 698; 3; 3-2011; 236-242
0370-2693
1873-2445
CONICET Digital
CONICET
url http://hdl.handle.net/11336/192757
identifier_str_mv Gomez Dumm, Daniel Alberto; Noguera, Santiago; Scoccola, Norberto Nerio; Pion radiative weak decays in nonlocal chiral quark models; Elsevier Science; Physics Letters B; 698; 3; 3-2011; 236-242
0370-2693
1873-2445
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://www.sciencedirect.com/science/article/pii/S0370269311002346
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2011.03.002
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1011.6403
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
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 13.24909

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