High-energy scattering and Euclidean-Minkowskian duality

Abstract

We shall discuss how some relevant analyticity and crossing-symmetry properties of the "eikonal scattering amplitudes" of two Wilson loops in QCD, when going from Euclidean to Minkowskian theory, can be related to the still unsolved problem of the asymptotic s-dependence of the hadron-hadron total cross-sections. In particular, we critically discuss the question if (and how) a pomeron-like behaviour can be derived from this Euclidean-Minkowskian duality.

Comments: Talk given at the XIIth International Conference on Elastic and Diffractive Scattering (Blois Workshop, EDS 2007), ``Forward Physics and QCD'', DESY, Hamburg (Germany), 21-25 May 2007; 8 pages