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arXiv · 2406.07916

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

Guido Bell·Christopher Lee·Yiannis Makris·Jim Talbert·Bin Yan
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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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Guido Bell, Christopher Lee, Yiannis Makris, Jim Talbert, Bin Yan. 2024-06-12. Revisiting strong-coupling determinations from $e^+ e^-$ event shapes. https://arxiv.org/abs/2406.07916

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