The European Physical Journal C

, Volume 55, Issue 2, pp 237–248 | Cite as

Determination of QCD condensates from τ decay data

Regular Article - Theoretical Physics

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 two- and three-parameter fits, we obtain new results for the correlations of condensates. The results are consistent and agree with most of the previous results found in the literature.

Keywords

Spectral Function Error Channel Decay Data Aleph Collaboration Perturbative Contribution 

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2008

Authors and Affiliations

  1. 1.II. Institut für Theoretische PhysikUniversität HamburgHamburgGermany
  2. 2.Institut für PhysikJohannes-Gutenberg-UniversitätMainzGermany

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