Hard and Soft Contributions in Diffraction

Abstract

We report our calculations on the logarithmic slope of the diffractive structure function F_2^D considering distinct approaches coming from both the pQCD and the Regge descriptions of diffractive DIS. Such a quantity is a potential observable to discriminate between pQCD and Regge domains and allows to disentangle the underlying dynamics.

8 pages, 3 figures, style elsart.cls. Talk presented by M.B. Gay Ducati at the IXth Blois Workshop, Pruhonice near Prague, June 9-15, 2001