# Progress in NLO Calculations for gamma-gamma Physics

## TL;DR

This paper reviews recent progress in NLO calculations for gamma-gamma physics in ultraperipheral collisions, introducing an automated framework that enables precise predictions for photon-photon processes at colliders.

## Contribution

The paper presents the first automated NLO computation framework for photon-photon processes in ultraperipheral collisions, enhancing precision in theoretical predictions.

## Key findings

- Development of gamma-UPC+MadGraph5_aMC@NLO framework
- First automated tool for NLO predictions in UPC photon-photon processes
- Improved accuracy in modeling photon-fusion processes at colliders

## Abstract

With the advent of precision measurements of photon-fusion processes in ultraperipheral collisions (UPCs) at facilities, such as RHIC and the LHC, the inclusion of higher-order corrections has become essential. While automated frameworks already make NLO corrections feasible for parton-parton scattering processes, no comparable tools had previously been available for UPC processes in two-photon collisions. In these proceedings, we review some recent explicit NLO computations and present the updated gamma-UPC+MadGraph5_aMC@NLO framework, the first automated software that enables NLO-accurate predictions for photon-photon processes in UPCs.