$\gamma^*\gamma^*$ total cross-section in the dipole picture of BFKL   dynamics
  The total $\gamma^*\gamma^*$ cross-section is derived in the Leading Order QCD dipole picture of BFKL dynamics, and compared with the one from 2-gluon exchange. The Double Leading Logarithm approximation of the DGLAP cross-section is found to be small in the phase space studied. Cross sections are calculated for realistic data samples at the $e^+e^-$ collider LEP and a future high energy linear collider. Next to Leading order corrections to the BFKL evolution have been determined phenomenologically, and are found to give very large corrections to the BFKL cross-section, leading to a reduced sensitivity for observing BFKL. 
M.Boonekamp (1), A. De Roeck (2), C.Royon (1), S.Wallon (3) ((1)   DAPNIA/SPP, CEA/Saclay, (2) DESY and CERN, (3) IPN Orsay ...