Precise Predictions for Event Shapes in Diphoton Production at the LHC

Abstract

Photon pair production is an important benchmark process at the LHC, entering Higgs boson studies and new physics searches. It has been measured to high accuracy, allowing for detailed studies of event shapes in diphoton final states. To enable precision physics with diphoton event shapes, we compute the second-order QCD corrections, $\mathcal{O}({\alpha }_s^3)$, to them and study their phenomenological impact.

Comments: match manuscript version to be published in PRL