Pion radiative weak decays in nonlocal chiral quark models
- Autores
- Gómez Dumm, Daniel Alberto; Noguera, S.; 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⁺ ν e 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.
Instituto de Física La Plata - Materia
-
Física
Nonlocal quark models
Pion radiative weak decays - 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:10915/129305
Ver los metadatos del registro completo
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Pion radiative weak decays in nonlocal chiral quark modelsGómez Dumm, Daniel AlbertoNoguera, S.Scoccola, Norberto NerioFísicaNonlocal quark modelsPion radiative weak decaysWe 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⁺ ν e 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.Instituto de Física La Plata2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf236-242http://sedici.unlp.edu.ar/handle/10915/129305enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/arxiv/1011.6403info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2011.03.002info: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:UNLP2025-10-15T11:23:08Zoai:sedici.unlp.edu.ar:10915/129305Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:23:08.94SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| 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 Gómez Dumm, Daniel Alberto Física 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 |
Gómez Dumm, Daniel Alberto Noguera, S. Scoccola, Norberto Nerio |
| author |
Gómez Dumm, Daniel Alberto |
| author_facet |
Gómez Dumm, Daniel Alberto Noguera, S. Scoccola, Norberto Nerio |
| author_role |
author |
| author2 |
Noguera, S. Scoccola, Norberto Nerio |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Física Nonlocal quark models Pion radiative weak decays |
| topic |
Física Nonlocal quark models Pion radiative weak decays |
| 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⁺ ν e 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. Instituto de Física La Plata |
| 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⁺ ν e 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 |
| 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/10915/129305 |
| url |
http://sedici.unlp.edu.ar/handle/10915/129305 |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
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info:eu-repo/semantics/altIdentifier/issn/0370-2693 info:eu-repo/semantics/altIdentifier/arxiv/1011.6403 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2011.03.002 |
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info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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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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application/pdf 236-242 |
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reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
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