The 3-loop soft anomalous dimension In multi-leg scattering
I present the result for the three-loop soft anomalous dimension, governing long-distance singularities in gauge-theory scattering amplitudes with any number of massless external legs for general kinematics. I describe the calculation, which incorporates several novel methods, and the main features of the result. Finally, I discuss special kinematic limits, such as the collinear limit and the Regge limit, where the result can be contrasted with prior expectations.
Higgs Centre for Theoretical Physics, University of Edinburgh
Speaker
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Einan Gardi
