Using improved operator product expansion in Borel–Laplace sum rules with ALEPH τ decay data, and determination of pQCD coupling
Date Issued
2022-04
Author(s) USM
Teca, D.
DOI
10.1140/epjc/s10052-022-10298-w
Abstract
We use improved truncated operator product expansion (OPE) for the Adler function, involving two types of terms with dimension D = 6, in the double-pinched Borel-Laplace sum rules and finite energy sum rules for the V + A channel strangeless semihadronic
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