Disentangling the Regge Cut and Regge Pole in Perturbative QCD

The high-energy limit of gauge-theory amplitudes features both a Regge pole and Regge cuts. We show how to disentangle these, and hence how to determine the Regge trajectory beyond two loops. While the nonplanar part of multiple Reggeon t-channel exchange forms a Regge cut, the planar part contribut...

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Bibliographic Details
Main Authors: Falcioni, G. (Author), Gardi, E. (Author), Maher, N. (Author), Milloy, C. (Author), Vernazza, L. (Author)
Format: Article
Language:English
Published: American Physical Society 2022
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Online Access:View Fulltext in Publisher

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