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Running Coupling Constant from Position-Space Current-Current Correlation Functions in Three-Flavor Lattice QCD

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Calì, Salvatore ; Cichy, Krzysztof ; Korcyl, Piotr ; Simeth, Jakob
License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 01 Apr 2021 13:07


In this Letter, we provide a determination of the coupling constant in three-flavor quantum chromodynamics (QCD), alpha((MS) over bar)(s)(mu), for (MS) over bar renormalization scales is mu is an element of (1, 2) GeV. The computation uses gauge field configuration ensembles with O(a)-improved Wilson-clover fermions generated by the Coordinated Lattice Simulations (CLS) consortium. Our approach ...


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