期刊
XITH CONFERENCE ON QUARK CONFINEMENT AND HADRON SPECTRUM
卷 1701, 期 -, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4938616
关键词
Renonnalons; operator product expansion; lattice QCD; gluon condensate; heavy quark effective theory
We study the operator product expansion of the plaquette (gluon condensate) and the self-energy of an infinitely heavy quark. We first compute their perturbative expansions to order alpha(35) and alpha(20), respectively, in the lattice scheme. In both cases we reach the asymptotic regime where the renormalon behavior sets in. Subtracting the perturbative series, we obtain the leading non-perturbative corrections of their respective operator product expansions. In the first case we obtain the gluon condensate and in the second the binding energy of the heavy quark in the infinite mass limit. The results arc fully consistent with the expectations from renommlons and the operator product expansion.
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