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arXiv · 2012.15670

New method for renormalon subtraction using Fourier transform

Yuuki Hayashi·Yukinari Sumino·Hiromasa Takaura
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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 $Λ_{\rm QCD}$ efficiently and simultaneously from single-scale observables. We apply it to different observables and examine consistency with theoretical expectations.

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Yuuki Hayashi, Yukinari Sumino, Hiromasa Takaura. 2021-06-03. New method for renormalon subtraction using Fourier transform. https://doi.org/10.1016/j.physletb.2021.136414

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