2024-03-28T16:54:50Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/330862012-12-09T23:00:00Zcom_10261_61com_10261_4col_10261_314
DIGITAL.CSIC
author
Gómez Dumm, D.
author
Pich, Antonio
author
Portolés, Jorge
2011-03-04T14:15:25Z
2011-03-04T14:15:25Z
2004-12-02
Aip Conference Proceedings 739(1): 660-662 (2004)
0094-243X
http://hdl.handle.net/10261/33086
10.1063/1.1843685
The decays τ --> 3πντ are analyzed in the framework of the resonance effective theory of QCD, We derive the effective chiral Lagrangian relevant for the evaluation of the hadronic axial-vector current, taking into account the constraints imposed by QCD on the high energy asymptotic behaviour. Then we fit the unknown parameters to the spectral function and branching ratio measured by ALEPH, showing that the theory is in good agreement with experimental data. A detailed description of the work sketched here can be found in Ref. [1].
eng
closedAccess
Lepton decay
Tau leptons
Pion production
Quantum chromodynamics
Resonance Effective Theory Approach to τ --> 3πντ Decays
comunicación de congreso
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