Next-to-next-to-next-to-leading order QCD corrections to photon-pair production

TL;DR

This paper presents the first N³LO QCD predictions for photon-pair production in high-energy collisions, demonstrating improved convergence and addressing computational challenges.

Contribution

It introduces novel N³LO calculations for photon-pair production, advancing precision in perturbative QCD predictions.

Findings

Demonstrates perturbative convergence at N³LO for photon-pair production.

Addresses computational challenges in high-order QCD calculations.

Provides phenomenological results relevant for the LHC.

Abstract

The production of two isolated photons in high-energy hadron collisions poses a challenge to perturbative QCD because of large corrections through next-to-next-to-leading order (NNLO). We present novel next-to-next-to-next-to-leading order ($\text{N}^3$LO) predictions and finally demonstrate perturbative convergence for this process. We discuss the considerable computational challenges and phenomenological results for the Large Hadron Collider.