QCD field strength correlator at the next-to-leading order

Abstract

The gauge invariant two-point correlation function of the gauge field strength tensor is calculated in perturbation theory at the next-to-leading order. Besides a direct calculation in perturbative QCD we also present a derivation of the correlation function in the heavy quark effective theory. Our results are briefly compared with recent determinations of the field strength correlator on the lattice.

11 pages, LaTeX, 3 eps figures

References in corpus (1)

• Two-Loop Anomalous Dimension of the Chromo-Magnetic Moment of a Heavy Quark

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