Lance J. Dixon
The four-loop remainder function and multi-Regge behavior at NNLLA in planar $ \mathcal{N} $ = 4 super-Yang-Mills theory
Dixon, Lance J.; Drummond, James M.; Duhr, Claude; Pennington, Jeffrey
Authors
James M. Drummond
Claude Duhr
Jeffrey Pennington
Abstract
We present the four-loop remainder function for six-gluon scattering with maximal helicity violation in planar N = 4 super-Yang-Mills theory, as an analytic function of three dual-conformal cross ratios. The function is constructed entirely from its analytic properties, without ever inspecting any multi-loop integrand. We employ the same approach used at three loops, writing an ansatz in terms of hexagon functions, and fixing coefficients in the ansatz using the multi-Regge limit and the operator product expansion in the near-collinear limit. We express the result in terms of multiple polylogarithms, and in terms of the coproduct for the associated Hopf algebra. From the remainder function, we extract the BFKL eigenvalue at next-to-next-to-leading logarithmic accuracy (NNLLA), and the impact factor at N3LLA. We plot the remainder function along various lines and on one surface, studying ratios of successive loop orders. As seen previously through three loops, these ratios are surprisingly constant over large regions in the space of cross ratios, and they are not far from the value expected at asymptotically large orders of perturbation theory.
Citation
Dixon, L. J., Drummond, J. M., Duhr, C., & Pennington, J. (2014). The four-loop remainder function and multi-Regge behavior at NNLLA in planar $ \mathcal{N} $ = 4 super-Yang-Mills theory. Journal of High Energy Physics, 2014(6), Article 116. https://doi.org/10.1007/jhep06%282014%29116
Journal Article Type | Article |
---|---|
Acceptance Date | May 9, 2014 |
Online Publication Date | Jun 19, 2014 |
Publication Date | Jun 19, 2014 |
Deposit Date | Apr 3, 2018 |
Publicly Available Date | May 25, 2018 |
Journal | Journal of High Energy Physics |
Print ISSN | 1126-6708 |
Electronic ISSN | 1029-8479 |
Publisher | Scuola Internazionale Superiore di Studi Avanzati (SISSA) |
Peer Reviewed | Peer Reviewed |
Volume | 2014 |
Issue | 6 |
Article Number | 116 |
DOI | https://doi.org/10.1007/jhep06%282014%29116 |
Public URL | https://durham-repository.worktribe.com/output/1336037 |
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Copyright Statement
This article is distributed under the terms of the Creative Commons
Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in
any medium, provided the original author(s) and source are credited.
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