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High Energy Physics - Phenomenology

arXiv:2111.01517 (hep-ph)
[Submitted on 2 Nov 2021 (v1), last revised 4 Feb 2022 (this version, v2)]

Title:The Soft Anomalous Dimension at four loops in the Regge Limit

Authors:Niamh Maher, Giulio Falcioni, Einan Gardi, Calum Milloy, Leonardo Vernazza
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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 $2\to2$ 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.
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
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
Cite as: arXiv:2111.01517 [hep-ph]
  (or arXiv:2111.01517v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2111.01517

Submission history

From: Niamh Maher [view email]
[v1] Tue, 2 Nov 2021 11:46:29 UTC (638 KB)
[v2] Fri, 4 Feb 2022 10:48:01 UTC (652 KB)
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