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The strong coupling from a nonperturbative determination of the $\Lambda$ parameter in three-flavor QCD
We present a lattice determination of the Λ parameter in three-flavor QCD and the strong coupling at the Z pole mass. Computing the nonperturbative running of the coupling in the range from 0.2 to 70 GeV, and using experimental input values for the masses and decay constants of the pion and the kaon...
Autores principales: | , , , , , , , , |
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Lenguaje: | eng |
Publicado: |
2017
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.119.102001 http://cds.cern.ch/record/2269091 |