Analytic Form of the Two-Loop Planar Five-Gluon All-Plus-Helicity Amplitude in QCD
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Publication:2960705
DOI10.1103/PHYSREVLETT.116.062001zbMATH Open1356.81169arXiv1511.05409OpenAlexW2240336805WikidataQ87376904 ScholiaQ87376904MaRDI QIDQ2960705
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Publication date: 17 February 2017
Abstract: Virtual two-loop corrections to scattering amplitudes are a key ingredient to precision physics at collider experiments. We compute the full set of planar master integrals relevant to five-point functions in massless QCD, and use these to derive an analytical expression for the two-loop five-gluon all-plus-helicity amplitude. After subtracting terms that are related to the universal infrared and ultraviolet pole structure, we obtain a remarkably simple and compact finite remainder function, consisting only of dilogarithms.
Full work available at URL: https://arxiv.org/abs/1511.05409
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