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Double Virtual Contributions for Massless 2 -> 3 Scattering in NNLO QCD

Vasily Sotnikov

SciPost Phys. Proc. 7, 002 (2022) · published 20 June 2022

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We review the recent advances in the calculation of two-loop QCD corrections for massless five-point scattering that paved the way for their broad phenomenological applications in calculation of NNLO QCD predictions. We first discuss the construction of a transcendental function basis which facilitates derivation of compact analytic representations for two-loop amplitudes and enables their fast and stable numerical evaluation over physical phase space. We then present the recent calculations of the leading-color two-loop corrections for hadroproduction of three photons and three jets.

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