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Implications of the ALEPH $\tau$-Lepton Decay Data for Perturbative and Non-Perturbative QCD
We use ALEPH data on hadronic $\tau$ decays in order to calculate Euclidean coordinate space correlation functions in the vector and axial-vector channels. The linear combination $V-A$ receives no perturbative contribution and is quantitatively reproduced by the instanton liquid model. In the case o...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2001
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.86.3973 http://cds.cern.ch/record/468387 |