An investigation of the $$\alpha _S$$ α S and heavy quark mass dependence in the MSHT20 global PDF analysis

Abstract We investigate the MSHT20 global PDF sets, demonstrating the effects of varying the strong coupling $$\alpha _S(M_Z^2)$$ α S ( M Z 2 ) and the masses of the charm and bottom quarks. We determine the preferred value, and accompanying uncertainties, when we allow $$\alpha _S(M_Z^2)$$ α S ( M...

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Bibliographic Details
Main Authors: T. Cridge, L. A. Harland-Lang, A. D. Martin, R. S. Thorne
Format: Article
Language:English
Published: SpringerOpen 2021-08-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-021-09533-7