Abstract
We determine the nonperturbative gluon condensate of four-dimensional SU(3) gauge theory in a model-independent way. This is achieved by carefully subtracting high-order perturbation theory results from nonperturbative lattice QCD determinations of the average plaquette. No indications of dimension-two condensates are found. The value of the gluon condensate turns out to be of a similar size as the intrinsic ambiguity inherent to its definition. We also determine the binding energy of a B meson in the heavy quark mass limit. © 2014 American Physical Society.
Original language | English |
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Article number | 092001 |
Journal | Physical Review Letters |
Volume | 113 |
Issue number | 9 |
DOIs | |
Publication status | Published - 25 Aug 2014 |