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arXiv · 2105.04585

Two-loop helicity amplitudes for diphoton plus jet production in full color

Bakul Agarwal·Federico Buccioni·Andreas von Manteuffel·Lorenzo Tancredi
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Abstract

We present the complete two-loop corrections in massless QCD for the production of two photons and a jet, taking into account all color structures. In particular, we analytically compute all two-loop helicity amplitudes for the quark-antiquark, quark-gluon, and antiquark-gluon channel, and check them with an independent calculation of the polarization-summed interference with the tree amplitude. This is the first time that two-loop QCD corrections to a five-point scattering process have been computed beyond the leading-color approximation for all helicity configurations.

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Bakul Agarwal, Federico Buccioni, Andreas von Manteuffel, Lorenzo Tancredi. 2021-05-10. Two-loop helicity amplitudes for diphoton plus jet production in full color. https://doi.org/10.1103/physrevlett.127.262001

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