The 3-loop soft anomalous dimension In multi-leg scattering
Higgs Centre for Theoretical Physics, University of Edinburgh
Wed, Dec. 14th 2016, 14:15-15:15
Salle Claude Itzykson, Bât. 774, Orme des Merisiers

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.

Contact : Gregory SOYEZ


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