Field strength correlators in QCD: new fits to the lattice data

Abstract

We discuss the results obtained by fitting the lattice data of the gauge-invariant field strength correlators in QCD with some particular functions which are commonly used in the literature in some phenomenological approaches to high-energy hadron-hadron scattering. A comparison is done with the results obtained in the original fits to the lattice data.

Comments: 14 pages, LaTeX file, + 4 PS figures. Revised version including new figures, new references, revised tables and new comments on the results