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arXiv · hep-ph/9812523

$γ^*γ^*$ total cross-section in the dipole picture of BFKL dynamics

M. Boonekamp·A. De Roeck·C. Royon·S. Wallon
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Abstract

The total $γ^*γ^*$ 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.

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M. Boonekamp, A. De Roeck, C. Royon, S. Wallon. 1998-12-30. $γ^*γ^*$ total cross-section in the dipole picture of BFKL dynamics. https://doi.org/10.1016/s0550-3213(99)00345-4

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