The gluon Regge trajectory at three loops from planar Yang-Mills theory
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- Duca2022_Article_TheGluonReggeTrajectoryAtThree
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We compute the three-loop leading-colour corrections to the Yang-Mills Regge trajectory and gluon impact factor. Conjecturing that, in analogy with N = 4 super Yang-Mills (SYM), in a suitable scheme Nc-subleading terms are absent from the three-loop Regge trajectory, we understand our result as the first computation of the pure gauge, or nf = 0, part of the QCD three-loop Regge trajectory. The results are presented both for the bare and renormalised amplitudes and are consistent with predictions from infrared factorisation along with reproducing known results in planar N = 4 SYM through a maximal weight truncation. We also include the dependence on a Regge factorisation scale to facilitate future applications in BFKL theory at next-to-next-to leading logarithmic accuracy.
Originalsprog | Engelsk |
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Artikelnummer | 149 |
Tidsskrift | Journal of High Energy Physics |
Vol/bind | 2022 |
Udgave nummer | 1 |
Antal sider | 15 |
ISSN | 1029-8479 |
DOI | |
Status | Udgivet - 26 jan. 2022 |
ID: 300677504