Hadronic decays of the tau lepton: $\tau \to (3 pion) \nu_{\tau}$ within Resonance Chiral Theory

Tau decays into hadrons foresee the study of the hadronization of vector and axial-vector QCD currents, yielding relevant information on the dynamics of the resonances entering into the processes. We analyse tau -> (3 pion) nu_tau decays within the framework of the Resonance Chiral Theory, compar...

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Detalles Bibliográficos
Autores principales: Dumm, D G, Pich, Antonio, Portolés, J
Lenguaje:eng
Publicado: 2005
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1063/1.2163740
http://cds.cern.ch/record/887146
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author Dumm, D G
Pich, Antonio
Portolés, J
author_facet Dumm, D G
Pich, Antonio
Portolés, J
author_sort Dumm, D G
collection CERN
description Tau decays into hadrons foresee the study of the hadronization of vector and axial-vector QCD currents, yielding relevant information on the dynamics of the resonances entering into the processes. We analyse tau -> (3 pion) nu_tau decays within the framework of the Resonance Chiral Theory, comparing this theoretical scheme with the experimental data, namely ALEPH spectral function and branching ratio. Hence we get values for the mass and on-shell width of the a_1(1260) resonance, and provide the structure functions that have been measured by OPAL and CLEO-II.
id cern-887146
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2005
record_format invenio
spelling cern-8871462019-09-30T06:29:59Zdoi:10.1063/1.2163740http://cds.cern.ch/record/887146engDumm, D GPich, AntonioPortolés, JHadronic decays of the tau lepton: $\tau \to (3 pion) \nu_{\tau}$ within Resonance Chiral TheoryParticle Physics - PhenomenologyTau decays into hadrons foresee the study of the hadronization of vector and axial-vector QCD currents, yielding relevant information on the dynamics of the resonances entering into the processes. We analyse tau -> (3 pion) nu_tau decays within the framework of the Resonance Chiral Theory, comparing this theoretical scheme with the experimental data, namely ALEPH spectral function and branching ratio. Hence we get values for the mass and on-shell width of the a_1(1260) resonance, and provide the structure functions that have been measured by OPAL and CLEO-II.hep-ph/0509301FTUV-2005-0920IFIC-2005-41oai:cds.cern.ch:8871462005-09-27
spellingShingle Particle Physics - Phenomenology
Dumm, D G
Pich, Antonio
Portolés, J
Hadronic decays of the tau lepton: $\tau \to (3 pion) \nu_{\tau}$ within Resonance Chiral Theory
title Hadronic decays of the tau lepton: $\tau \to (3 pion) \nu_{\tau}$ within Resonance Chiral Theory
title_full Hadronic decays of the tau lepton: $\tau \to (3 pion) \nu_{\tau}$ within Resonance Chiral Theory
title_fullStr Hadronic decays of the tau lepton: $\tau \to (3 pion) \nu_{\tau}$ within Resonance Chiral Theory
title_full_unstemmed Hadronic decays of the tau lepton: $\tau \to (3 pion) \nu_{\tau}$ within Resonance Chiral Theory
title_short Hadronic decays of the tau lepton: $\tau \to (3 pion) \nu_{\tau}$ within Resonance Chiral Theory
title_sort hadronic decays of the tau lepton: $\tau \to (3 pion) \nu_{\tau}$ within resonance chiral theory
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1063/1.2163740
http://cds.cern.ch/record/887146
work_keys_str_mv AT dummdg hadronicdecaysofthetauleptontauto3pionnutauwithinresonancechiraltheory
AT pichantonio hadronicdecaysofthetauleptontauto3pionnutauwithinresonancechiraltheory
AT portolesj hadronicdecaysofthetauleptontauto3pionnutauwithinresonancechiraltheory

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