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

Gunnar S. Bali; Clemens Bauer; Antonio Pineda

doi:10.1103/PhysRevLett.113.092001

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

Gunnar S. Bali, Clemens Bauer, Antonio Pineda

Department of Physics

Research output: Contribution to journal › Article › Research › peer-review

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 language	English
Article number	092001
Journal	Physical Review Letters
Volume	113
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.113.092001
Publication status	Published - 25 Aug 2014

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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. {\textcopyright} 2014 American Physical Society.",

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AB - 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.

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