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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...

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Detalles Bibliográficos
Autores principales: Bruno, Mattia, Dalla Brida, Mattia, Fritzsch, Patrick, Korzec, Tomasz, Ramos, Alberto, Schaefer, Stefan, Simma, Hubert, Sint, Stefan, Sommer, Rainer
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.119.102001
http://cds.cern.ch/record/2269091