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arXiv · 2311.10086

Double-Virtual NNLO QCD Corrections for Five-Parton Scattering: The Gluon Channel

Giuseppe De Laurentis·Harald Ita·Maximillian Klinkert·Vasily Sotnikov
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Abstract

We compute the two-loop helicity amplitudes for the scattering of five gluons, including all contributions beyond the leading-color approximation. The analytic expressions are represented as linear combinations of transcendental functions with rational coefficients, which we reconstruct from finite-field samples obtained with the numerical unitarity method. Guided by the requirement of removing unphysical singularities, we find a remarkably compact generating set of rational coefficients, which we are able to display entirely in the manuscript. We implement our results in a public code, which provides efficient and reliable numerical evaluations for phenomenological applications.

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Giuseppe De Laurentis, Harald Ita, Maximillian Klinkert, Vasily Sotnikov. 2023-11-16. Double-Virtual NNLO QCD Corrections for Five-Parton Scattering: The Gluon Channel. https://arxiv.org/abs/2311.10086

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