Analyzing high-energy factorization beyond the next-to-leading logarithmic accuracy
Prof. Vittorio Del Duca (Frascati)

Through the combined analysis of infrared and high-energy factorizations, it was recently confirmed that the simplest form of Regge factorization for high-energy scattering amplitudes fails starting at next-to-next-to-leading logarithmic accuracy in log(s/t), due to the amplitudes becoming non-diagonal in the t-channel exchange basis.
In this talk, I provide a detailed account of the Reggeization-breaking terms in two-loop and three-loop quark and gluon amplitudes in QCD.