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

URN to cite this document:
urn:nbn:de:bvb:355-epub-454338
DOI to cite this document:
10.5283/epub.45433
Calì, Salvatore ; Cichy, Krzysztof ; Korcyl, Piotr ; Simeth, Jakob
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Date of publication of this fulltext: 01 Apr 2021 13:07


Abstract

In this Letter, we provide a determination of the coupling constant in three-flavor quantum chromodynamics (QCD), α¯¯¯¯¯¯MSs(μ), for ¯¯¯¯¯¯MS renormalization scales μ∈(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 is based on current-current correlation ...

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