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The Soft Anomalous Dimension at four loops in the Regge Limit by Maher, Niamh; Falcioni, Giulio; Gardi, Einan; Milloy, Calum; Vernazza, Leonardo is a scholarly article available to read on EtoBox.

What is The Soft Anomalous Dimension at four loops in the Regge Limit about?

The soft anomalous dimension governs the infrared divergences of scattering amplitudes in general kinematics to all orders in perturbation theory. By comparing the recent Regge-limit results for $2\to2$ scattering (through Next-to-Next-to-Leading Logarithms) in full colour to a general form for the soft anomalous dimension at four loops we derive powerful constraints on its kinematic dependence, opening the way for a bootstrap-based determination.

Author

Maher, Niamh; Falcioni, Giulio; Gardi, Einan; Milloy, Calum; Vernazza, Leonardo

Published

2021

Language

EN