The infrared structure of gauge amplitudes in the high-energy limit
I will review recent progress in our understanding of infrared singularities of non-abelian gauge theories, to all orders in perturbation theory. For massless gauge theories, our knowledge can be summarized in a compact expression, the dipole formula, that is conjectured to give the complete result for general amplitudes involving an arbitrary number of colored particles. I will then describe the application of the dipole formula to the high-energy limit, showing how one may use it to understand the phenomenon of perturbative Reggeization, and predict its breakdown at NNLL accuracy.
Torino
Speaker
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Lorenzo Magnea
