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Revisiting strong-coupling determinations from $e^+ e^-$ event shapes

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arxiv 2406.07916 v1 pith:QMWFNIN3 submitted 2024-06-12 hep-ph

Guido Bell , Christopher Lee , Yiannis Makris , Jim Talbert , Bin Yan This is my paper · ORCID
classification hep-ph
keywords determinationsstrong-couplingappliedassociatedcalculationchoicecorrectionsdata
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abstract

We reassess the theoretical uncertainties of strong-coupling determinations from a global fit to the $e^+ e^-$ thrust data, focusing in particular on the scheme dependence associated with the applied renormalon-cancellation prescription and on the choice of scale parameters that are used to estimate higher-order perturbative corrections in all sectors of the calculation.

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