Unitarized model of inclusive and diffractive DIS with Q2 evolution

We discuss the interplay of low-x physics and QCD scaling violations by extending the unified approach describing inclusive structure functions and diffractive production in γ*p interactions proposed in previous papers to large values of Q2. We describe the procedure of extracting, from the nonperturbative model, initial conditions for the QCD evolution that respect unitarity. Assuming Regge factorization of the diffractive structure function, a similar procedure is proposed for the calculation of hard diffraction. The results are in good agreement with experimental data on the proton structure function F2 and the most recent data on the reduced diffractive cross section, xPσrD(3). Predictions for both F2 and FL are presented in a wide kinematical range and compared to calculations within high-energy QCD.