Measurement of the hadronic cross section of double tagged $\gamma\gamma$ events at LEP

The interaction of virtual photons has been investigated using double tagged gamma*gamma*-events with hadronic final states, taken by the ALEPH experiment at e+e- center-of-mass energies sqrt{s_{ee}} = 189 - 208 GeV. The measured cross section is compared to the PYTHIA and the PHOT02 Monte Carlo Model, a NLO QCD calculation and BFKL calculations. The NLO QCD prediction is largely consistent with the data. The data do not show a rise of the cross section at high Y as predicted by LO BFKL, but are described by NLO BFKL calculations.