%0 Journal Article
%A de Soto, Feliciano
%A Boucaud, P.
%A Brinet, M.
%A Morenas, V.
%A Pène, O.
%A Petrov, K.
%A Rodríguez-Quintero, J.
%T Three-gluon running coupling from lattice QCD at N f = 2 + 1 + 1: A consistency check of the OPE approach
%D 2014
%@ 1029-8479
%U http://hdl.handle.net/10433/1007
%X We present a lattice calculation of the renormalized running coupling constant in symmetric (MOM) and asymmetric (MOM¿) momentum substraction schemes including u, d, s and c quarks in the sea. An Operator Product Expansion dominated by the dimension-two ¿A 2¿ condensate is used to fit the running of the coupling. We argue that the agreement in the predicted ¿A 2¿ condensate for both schemes is a strong support for the validity of the OPE approach and the effect of this non-gauge invariant condensate over the running of the strong coupling.
%K Lattice
%K Momentum substraction schemes
%~