Resonance Chiral Lagrangian analysis of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB>
- Autores
- Gómez Dumm, Daniel Alberto; Roig, P.
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The hadronization structure of τ-→η(′)π-π0ντ decays is analyzed using chiral perturbation theory with resonances, considering only the contribution of the lightest meson resonances at leading order in the 1/N C expansion. After imposing the asymptotic behavior of vector spectral functions ruled by QCD, unknown effective couplings are determined by fitting the τ-→η(′)π-π0ντ branching ratio and decay spectrum to recent data. Predictions for the partner decay τ-→η(′)π-π0ντ and the low-energy behavior of the cross section σ(e+e -→ηπ +π -) are also discussed.
Instituto de Física La Plata
Consejo Nacional de Investigaciones Científicas y Técnicas - Materia
-
Física
Quantum chromodynamics
Chiral symmetry
Decays of the tau lepton - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/96144
Ver los metadatos del registro completo
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Resonance Chiral Lagrangian analysis of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB>Gómez Dumm, Daniel AlbertoRoig, P.FísicaQuantum chromodynamicsChiral symmetryDecays of the tau leptonThe hadronization structure of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> decays is analyzed using chiral perturbation theory with resonances, considering only the contribution of the lightest meson resonances at leading order in the 1/N C expansion. After imposing the asymptotic behavior of vector spectral functions ruled by QCD, unknown effective couplings are determined by fitting the τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> branching ratio and decay spectrum to recent data. Predictions for the partner decay τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> and the low-energy behavior of the cross section σ(e+e -→ηπ +π -) are also discussed.Instituto de Física La PlataConsejo Nacional de Investigaciones Científicas y Técnicas2012-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf760091-7600910http://sedici.unlp.edu.ar/handle/10915/96144enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/74540info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.86.076009info:eu-repo/semantics/altIdentifier/issn/1550-7998info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.86.076009info:eu-repo/semantics/altIdentifier/hdl/11336/74540info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:52:36Zoai:sedici.unlp.edu.ar:10915/96144Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:52:36.594SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Resonance Chiral Lagrangian analysis of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> |
| title |
Resonance Chiral Lagrangian analysis of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> |
| spellingShingle |
Resonance Chiral Lagrangian analysis of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> Gómez Dumm, Daniel Alberto Física Quantum chromodynamics Chiral symmetry Decays of the tau lepton |
| title_short |
Resonance Chiral Lagrangian analysis of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> |
| title_full |
Resonance Chiral Lagrangian analysis of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> |
| title_fullStr |
Resonance Chiral Lagrangian analysis of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> |
| title_full_unstemmed |
Resonance Chiral Lagrangian analysis of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> |
| title_sort |
Resonance Chiral Lagrangian analysis of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> |
| dc.creator.none.fl_str_mv |
Gómez Dumm, Daniel Alberto Roig, P. |
| author |
Gómez Dumm, Daniel Alberto |
| author_facet |
Gómez Dumm, Daniel Alberto Roig, P. |
| author_role |
author |
| author2 |
Roig, P. |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Física Quantum chromodynamics Chiral symmetry Decays of the tau lepton |
| topic |
Física Quantum chromodynamics Chiral symmetry Decays of the tau lepton |
| dc.description.none.fl_txt_mv |
The hadronization structure of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> decays is analyzed using chiral perturbation theory with resonances, considering only the contribution of the lightest meson resonances at leading order in the 1/N C expansion. After imposing the asymptotic behavior of vector spectral functions ruled by QCD, unknown effective couplings are determined by fitting the τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> branching ratio and decay spectrum to recent data. Predictions for the partner decay τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> and the low-energy behavior of the cross section σ(e+e -→ηπ +π -) are also discussed. Instituto de Física La Plata Consejo Nacional de Investigaciones Científicas y Técnicas |
| description |
The hadronization structure of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> decays is analyzed using chiral perturbation theory with resonances, considering only the contribution of the lightest meson resonances at leading order in the 1/N C expansion. After imposing the asymptotic behavior of vector spectral functions ruled by QCD, unknown effective couplings are determined by fitting the τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> branching ratio and decay spectrum to recent data. Predictions for the partner decay τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB> and the low-energy behavior of the cross section σ(e+e -→ηπ +π -) are also discussed. |
| publishDate |
2012 |
| dc.date.none.fl_str_mv |
2012-10 |
| 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 |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/96144 |
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eng |
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eng |
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