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arXiv · 2106.08664

Virtual QCD corrections to gluon-initiated diphoton plus jet production at hadron colliders

Simon Badger·Christian Brønnum-Hansen·Dmitry Chicherin·Thomas Gehrmann·Heribertus Bayu Hartanto·Johannes Henn·Matteo Marcoli·Ryan Moodie·Tiziano Peraro·Simone Zoia
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Abstract

We present an analytic computation of the gluon-initiated contribution to diphoton plus jet production at hadron colliders up to two loops in QCD. We reconstruct the analytic form of the finite remainders from numerical evaluations over finite fields including all colour contributions. Compact expressions are found using the pentagon function basis. We provide a fast and stable implementation for the colour- and helicity-summed interference between the one-loop and two-loop finite remainders in C++ as part of the NJet library.

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Simon Badger, Christian Brønnum-Hansen, Dmitry Chicherin, Thomas Gehrmann, Heribertus Bayu Hartanto, Johannes Henn, Matteo Marcoli, Ryan Moodie, Tiziano Peraro, Simone Zoia. 2021-06-16. Virtual QCD corrections to gluon-initiated diphoton plus jet production at hadron colliders. https://doi.org/10.1007/jhep11(2021)083

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