Determination of QCD condensates from tau-decay data
A. A. Almasy, K. Schilcher, H. Spiesberger
TL;DR
This paper extracts QCD condensates from tau-decay data using the latest ALEPH results, providing updated values up to high dimensions and analyzing correlations among condensates.
Contribution
It introduces a comprehensive analysis of QCD condensates up to dimension 12 in V-A channels using tau-decay data, with new correlation results and consistency checks.
Findings
Condensate values up to dimension 12 in V-A channel obtained.
Results are consistent with previous literature.
New correlations among condensates are identified.
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.
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