Dispersive analysis of τ− → π−π⁰ντ Belle data

We analyse Belle data on the decay τ− → π−π⁰ν<sub>τ</sub> using a dispersive representation of the vector form factor which is consistent with chiral symmetry and preserves analyticity and unitarity exactly. We fit the unknown theoretical parameters from the data, determining the values...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Gómez Dumm, Daniel Alberto, Roig, Pablo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Exactas
Física
Tau decays
dispersion relations
chiral Lagrangian
hadronic form factors
meson resonances
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/129864
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-129864
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Tau decays
dispersion relations
chiral Lagrangian
hadronic form factors
meson resonances
spellingShingle Ciencias Exactas
Física
Tau decays
dispersion relations
chiral Lagrangian
hadronic form factors
meson resonances
Gómez Dumm, Daniel Alberto
Roig, Pablo
Dispersive analysis of τ− → π−π⁰ντ Belle data
topic_facet Ciencias Exactas
Física
Tau decays
dispersion relations
chiral Lagrangian
hadronic form factors
meson resonances
description We analyse Belle data on the decay τ− → π−π⁰ν<sub>τ</sub> using a dispersive representation of the vector form factor which is consistent with chiral symmetry and preserves analyticity and unitarity exactly. We fit the unknown theoretical parameters from the data, determining the values of the related low-energy observables 〈 r² 〉<sup>π</sup><sub>V</sub> and c<sup>π</sup><sub>V</sub>. The implementation of isospin breaking effects is also discussed.
format Articulo
Articulo
author Gómez Dumm, Daniel Alberto
Roig, Pablo
author_facet Gómez Dumm, Daniel Alberto
Roig, Pablo
author_sort Gómez Dumm, Daniel Alberto
title Dispersive analysis of τ− → π−π⁰ντ Belle data
title_short Dispersive analysis of τ− → π−π⁰ντ Belle data
title_full Dispersive analysis of τ− → π−π⁰ντ Belle data
title_fullStr Dispersive analysis of τ− → π−π⁰ντ Belle data
title_full_unstemmed Dispersive analysis of τ− → π−π⁰ντ Belle data
title_sort dispersive analysis of τ− → π−π⁰ντ belle data
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/129864
work_keys_str_mv AT gomezdummdanielalberto dispersiveanalysisoftpp0ntbelledata
AT roigpablo dispersiveanalysisoftpp0ntbelledata
bdutipo_str Repositorios
_version_ 1764820452758257667

Ejemplares similares