Resonance Chiral Lagrangian analysis of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB>

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 l...

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Autores principales: Gómez Dumm, Daniel Alberto, Roig, P.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Física
Quantum chromodynamics
Chiral symmetry
Decays of the tau lepton
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/96144
https://ri.conicet.gov.ar/11336/74540
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.86.076009
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-96144
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Quantum chromodynamics
Chiral symmetry
Decays of the tau lepton
spellingShingle Física
Quantum chromodynamics
Chiral symmetry
Decays of the tau lepton
Gómez Dumm, Daniel Alberto
Roig, P.
Resonance Chiral Lagrangian analysis of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB>
topic_facet Física
Quantum chromodynamics
Chiral symmetry
Decays of the tau lepton
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.
format Articulo
Articulo
author Gómez Dumm, Daniel Alberto
Roig, P.
author_facet Gómez Dumm, Daniel Alberto
Roig, P.
author_sort Gómez Dumm, Daniel Alberto
title Resonance Chiral Lagrangian analysis of τ<SUP>-</SUP>→η<SUP>(′)</SUP>π<SUP>-</SUP>π<SUP>0</SUP>ν<SUB>τ</SUB>
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>
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/96144
https://ri.conicet.gov.ar/11336/74540
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.86.076009
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AT roigp resonancechirallagrangiananalysisoftsupsupēsupsuppsupsuppsup0supnsubtsub
bdutipo_str Repositorios
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