Publication: Strong running coupling at ¿ and Z 0 mass scales from lattice QCD
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Blossier, B.
Boucaud, P.
Brinet, M.
Du, X.
Morenas, V.
Pène, O.
Petrov, K.
Rodríguez-Quintero, J.
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American Physical Society
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This Letter reports on the first computation, from data obtained in lattice QCD with u, d, s, and c quarks in the sea, of the running strong coupling via the ghost-gluon coupling renormalized in the momentum-subtraction Taylor scheme. We provide readers with estimates of ¿MS¯¯¯¯¯¯(m2¿) and ¿MS¯¯¯¯¯¯(m2Z) in very good agreement with experimental results. Including a dynamical c quark makes the needed running of ¿MS¯¯¯¯¯¯ safer.
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Physical Review Letters, 108 (26), art. no. 262002