The Soft Anomalous Dimension at four loops in the Regge Limit
High Energy Physics - Phenomenology
2022-02-07 v2 High Energy Physics - Theory
Abstract
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 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.
Keywords
Cite
@article{arxiv.2111.01517,
title = {The Soft Anomalous Dimension at four loops in the Regge Limit},
author = {Niamh Maher and Giulio Falcioni and Einan Gardi and Calum Milloy and Leonardo Vernazza},
journal= {arXiv preprint arXiv:2111.01517},
year = {2022}
}
Comments
13 pages, 1 figure, 1 table; Proceedings for the 15th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology, FSU, Tallahasse, FL, USA, 17-21 May 2021