τ→ π π π ν<SUB>τ</SUB> decays in the resonance effective theory

Autores
Gómez Dumm, Daniel Alberto; Pich, A.; Portolés, J.
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
τ→ π π π ντ decays are analyzed within the framework of the resonance effective theory of QCD. We work out the relevant Lagrangian that describes the axial-vector current hadronization contributing to these processes, in particular the local [Formula Presented]-Goldstone interactions. The new coupling constants are constrained by imposing the asymptotic behavior of the corresponding spectral function within QCD. Hence we compare the theoretical framework with the experimental data, obtaining a good quality fit from the ALEPH spectral function and branching ratio. We also get values for the mass and on-shell width of the [Formula Presented] resonance. In this way we are able to provide the structure functions that have been measured by OPAL and CLEO-II and we find an excellent agreement.
Instituto de Física La Plata
Consejo Nacional de Investigaciones Científicas y Técnicas
Materia
Física
Decaimientos
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/95728
Acceder
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repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling τ→ π π π ν<SUB>τ</SUB> decays in the resonance effective theoryGómez Dumm, Daniel AlbertoPich, A.Portolés, J.FísicaDecaimientosτ→ π π π ν<SUB>τ</SUB> decays are analyzed within the framework of the resonance effective theory of QCD. We work out the relevant Lagrangian that describes the axial-vector current hadronization contributing to these processes, in particular the local [Formula Presented]-Goldstone interactions. The new coupling constants are constrained by imposing the asymptotic behavior of the corresponding spectral function within QCD. Hence we compare the theoretical framework with the experimental data, obtaining a good quality fit from the ALEPH spectral function and branching ratio. We also get values for the mass and on-shell width of the [Formula Presented] resonance. In this way we are able to provide the structure functions that have been measured by OPAL and CLEO-II and we find an excellent agreement.Instituto de Física La PlataConsejo Nacional de Investigaciones Científicas y Técnicas2004-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/95728enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/73929info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.69.073002info:eu-repo/semantics/altIdentifier/issn/0556-2821info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.69.073002info:eu-repo/semantics/altIdentifier/hdl/11336/73929info: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:10915/95728Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:52:36.549SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv τ→ π π π ν<SUB>τ</SUB> decays in the resonance effective theory
title τ→ π π π ν<SUB>τ</SUB> decays in the resonance effective theory
spellingShingle τ→ π π π ν<SUB>τ</SUB> decays in the resonance effective theory
Gómez Dumm, Daniel Alberto
Física
Decaimientos
title_short τ→ π π π ν<SUB>τ</SUB> decays in the resonance effective theory
title_full τ→ π π π ν<SUB>τ</SUB> decays in the resonance effective theory
title_fullStr τ→ π π π ν<SUB>τ</SUB> decays in the resonance effective theory
title_full_unstemmed τ→ π π π ν<SUB>τ</SUB> decays in the resonance effective theory
title_sort τ→ π π π ν<SUB>τ</SUB> decays in the resonance effective theory
dc.creator.none.fl_str_mv Gómez Dumm, Daniel Alberto
Pich, A.
Portolés, J.
author Gómez Dumm, Daniel Alberto
author_facet Gómez Dumm, Daniel Alberto
Pich, A.
Portolés, J.
author_role author
author2 Pich, A.
Portolés, J.
author2_role author
author
dc.subject.none.fl_str_mv Física
Decaimientos
topic Física
Decaimientos
dc.description.none.fl_txt_mv τ→ π π π ν<SUB>τ</SUB> decays are analyzed within the framework of the resonance effective theory of QCD. We work out the relevant Lagrangian that describes the axial-vector current hadronization contributing to these processes, in particular the local [Formula Presented]-Goldstone interactions. The new coupling constants are constrained by imposing the asymptotic behavior of the corresponding spectral function within QCD. Hence we compare the theoretical framework with the experimental data, obtaining a good quality fit from the ALEPH spectral function and branching ratio. We also get values for the mass and on-shell width of the [Formula Presented] resonance. In this way we are able to provide the structure functions that have been measured by OPAL and CLEO-II and we find an excellent agreement.
Instituto de Física La Plata
Consejo Nacional de Investigaciones Científicas y Técnicas
description τ→ π π π ν<SUB>τ</SUB> decays are analyzed within the framework of the resonance effective theory of QCD. We work out the relevant Lagrangian that describes the axial-vector current hadronization contributing to these processes, in particular the local [Formula Presented]-Goldstone interactions. The new coupling constants are constrained by imposing the asymptotic behavior of the corresponding spectral function within QCD. Hence we compare the theoretical framework with the experimental data, obtaining a good quality fit from the ALEPH spectral function and branching ratio. We also get values for the mass and on-shell width of the [Formula Presented] resonance. In this way we are able to provide the structure functions that have been measured by OPAL and CLEO-II and we find an excellent agreement.
publishDate 2004
dc.date.none.fl_str_mv 2004-12
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/10915/95728
url http://sedici.unlp.edu.ar/handle/10915/95728
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/73929
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.69.073002
info:eu-repo/semantics/altIdentifier/issn/0556-2821
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.69.073002
info:eu-repo/semantics/altIdentifier/hdl/11336/73929
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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