Prescriptive unitarity for non-planar six-particle amplitudes at two loops
From MaRDI portal
Publication:2303158
DOI10.1007/JHEP12(2019)073zbMATH Open1431.83177arXiv1909.09131WikidataQ106762817 ScholiaQ106762817MaRDI QIDQ2303158
Author name not available (Why is that?)
Publication date: 2 March 2020
Published in: (Search for Journal in Brave)
Abstract: We extend the applications of prescriptive unitarity beyond the planar limit to provide local, polylogarithmic, integrand-level representations of six-particle MHV scattering amplitudes in both maximally supersymmetric Yang-Mills theory and gravity. The integrand basis we construct is diagonalized on a spanning set of non-vanishing leading singularities that ensures the manifest matching of all soft-collinear singularities in both theories. As a consequence, this integrand basis naturally splits into infrared-finite and infrared-divergent parts, with hints toward an integrand-level exponentiation of infrared divergences. Importantly, we use the same basis of integrands for both theories, so that the presence or absence of residues at infinite loop momentum becomes a feature detectable by inspecting the cuts of the theory. Complete details of our results are provided as ancillary files. This work has been updated to take into account the results of [arXiv:1911.09106], which leads to a simpler and more uniform representation of these amplitudes.
Full work available at URL: https://arxiv.org/abs/1909.09131
No records found.
No records found.
This page was built for publication: Prescriptive unitarity for non-planar six-particle amplitudes at two loops
Report a bug (only for logged in users!)Click here to report a bug for this page (MaRDI item Q2303158)
