Borel-Laplace sum rules with τ decay data, using OPE with improved anomalous dimensions
Date Issued
2023-04
Author(s) USM
Teca, D.
DOI
10.1088/1361-6471/acbd65
Abstract
We perform numerical analysis of double-pinched Borel-Laplace QCD sum rules for the strangeless semihadronic tau-decay data. The D = 0 contribution to the theoretical contour integral in the sum rules is evaluated by the (truncated) Fixed Order perturbati
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