Determination of QCD condensates from tau-decay data

Abstract

We have used the latest data from the ALEPH Collaboration to extract values for QCD condensates up to dimension d=12 in the V-A channel and up to dimension d=8 in the V, A and V+A channels. Performing 2- and 3-parameter fits, we obtain new results for the correlations of condensates. The results are consistent among themselves and agree with most of the previous results found in the literature.

22 pages

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Cited by in corpus (21)

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• Pinched weights and Duality Violation in QCD Sum Rules: a critical analysis
• Violation of Quark-Hadron Duality and Spectral Chiral Moments in QCD
• Updated determination of chiral couplings and vacuum condensates from hadronic tau decay data
• Lattice study of vacuum polarization function and determination of strong coupling constant
• Quark deconfinement and gluon condensate in a weak magnetic field
• Precision physics with inclusive QCD processes
• Low-energy constants and condensates from the tau hadronic spectral functions
• Confronting electron-positron annihilation into hadrons with QCD: an operator product expansion analysis
• Chiral sum rules and vacuum condensates from tau-lepton decay data
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• Isospin symmetry breaking and the neutron-proton mass difference
• Estimate of the systematic error in tau decay due to duality violations
• Contribution from Duality Violations to the theoretical error on alpha_s
• Duality violation in QCD Sum Rules with the LR correlator
• Padé approximants and the prediction of non-perturbative parameters in particle physics