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

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 inter...

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Detalles Bibliográficos
Autores principales: Gómez Dumm, Daniel Alberto, Pich, A., Portolés, J.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2004
Materias:
Física
Decaimientos
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/95728
https://ri.conicet.gov.ar/11336/73929
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.69.073002
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-95728
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Decaimientos
spellingShingle Física
Decaimientos
Gómez Dumm, Daniel Alberto
Pich, A.
Portolés, J.
τ→ π π π ν<SUB>τ</SUB> decays in the resonance effective theory
topic_facet Física
Decaimientos
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.
format Articulo
Articulo
author Gómez Dumm, Daniel Alberto
Pich, A.
Portolés, J.
author_facet Gómez Dumm, Daniel Alberto
Pich, A.
Portolés, J.
author_sort Gómez Dumm, Daniel Alberto
title τ→ π π π ν<SUB>τ</SUB> decays in the resonance effective theory
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
publishDate 2004
url http://sedici.unlp.edu.ar/handle/10915/95728
https://ri.conicet.gov.ar/11336/73929
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.69.073002
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AT portolesj tpppnsubtsubdecaysintheresonanceeffectivetheory
bdutipo_str Repositorios
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