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Title: Resonance Effective Theory Approach to {tau} {yields} 3{pi}{nu}{tau} Decays

Abstract

The decays {tau} {yields} 3{pi}{nu}{tau} 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.

Authors:
 [1]; ;  [2]
  1. IFLP, Depto. de Fisica, Univ. Nac. de La Plata, C.C. 67 (1900) La Plata (Argentina)
  2. Dept. Fisica Teorica, IFIC, CSIC-Univ. de Valencia, Apt. 22085, E-46071 Valencia (Spain)
Publication Date:
OSTI Identifier:
20630421
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 739; Journal Issue: 1; Conference: Joint meeting on QCD and QCP: 9. hadron physics and 7. relativistic aspects of nuclear physics, Rio de Janeiro (Brazil), 28 Mar - 3 Apr 2004; Other Information: DOI: 10.1063/1.1843685; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AXIAL-VECTOR CURRENTS; BRANCHING RATIO; CHIRALITY; EVALUATION; HADRONS; LAGRANGIAN FUNCTION; PARTICLE DECAY; PARTICLE PRODUCTION; QUANTUM CHROMODYNAMICS; RESONANCE; SPECTRAL FUNCTIONS; TAU PARTICLES

Citation Formats

Gomez Dumm, D, Pich, A, and Portoles, J. Resonance Effective Theory Approach to {tau} {yields} 3{pi}{nu}{tau} Decays. United States: N. p., 2004. Web. doi:10.1063/1.1843685.
Gomez Dumm, D, Pich, A, & Portoles, J. Resonance Effective Theory Approach to {tau} {yields} 3{pi}{nu}{tau} Decays. United States. https://doi.org/10.1063/1.1843685
Gomez Dumm, D, Pich, A, and Portoles, J. 2004. "Resonance Effective Theory Approach to {tau} {yields} 3{pi}{nu}{tau} Decays". United States. https://doi.org/10.1063/1.1843685.
@article{osti_20630421,
title = {Resonance Effective Theory Approach to {tau} {yields} 3{pi}{nu}{tau} Decays},
author = {Gomez Dumm, D and Pich, A and Portoles, J},
abstractNote = {The decays {tau} {yields} 3{pi}{nu}{tau} 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.},
doi = {10.1063/1.1843685},
url = {https://www.osti.gov/biblio/20630421}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 739,
place = {United States},
year = {Thu Dec 02 00:00:00 EST 2004},
month = {Thu Dec 02 00:00:00 EST 2004}
}