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New method for renormalon subtraction using Fourier transform (2012.15670v2)
Published 31 Dec 2020 in hep-ph
Abstract: To improve accuracy in calculating QCD effects, we propose a method for renormalon subtraction in the context of the operator-product expansion. The method enables subtracting renormalons of various powers in $\Lambda_{\rm QCD}$ efficiently and simultaneously from single-scale observables. We apply it to different observables and examine consistency with theoretical expectations.
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