Model independent determination of the gluon condensate in four dimensional SU(3) gauge theory

Gunnar S. Bali, Clemens Bauer, Antonio Pineda

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35 Citations (Scopus)

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 languageEnglish
Article number092001
JournalPhysical Review Letters
Volume113
Issue number9
DOIs
Publication statusPublished - 25 Aug 2014

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