t-channel Approach to Reggeon Interactions in QCD
R. Kirschner
Abstract
Starting from the multi-Regge effective action for high-energy scattering in QCD a t-channel approach can be developed which is similar to the approach by White based on general Regge arguments. The BFKL kernel of reggeized gluon interaction, contributions to the 2 → 4 reggeized gluon vertex function and the one-loop correction to the BFKL kernel are considered. The conditions are discussed under which this approach can provide a simple estimante of the next-to-leading logarithmic corrections to the BFKL perturbative pomeron intercept.
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