NLO QCD corrections to diphoton plus jet production through graviton exchange

TL;DR

This paper calculates next-to-leading order QCD corrections for diphoton plus jet production via graviton exchange in large extra dimension models, revealing non-uniform K-factors across observables.

Contribution

It provides the first automated NLO QCD calculations for graviton-mediated diphoton plus jet production using GOSAM.

Findings

Differential K-factors vary significantly across observables.

Results are shown for models with 4, 5, and 6 extra dimensions.

The corrections impact the shape of key distributions.

Abstract

We present the NLO QCD corrections to the production of a photon pair in association with one jet, where the photons are stemming from graviton decay, within models of large extra dimensions. Our results for the loop amplitudes are produced with the program GOSAM for automated one-loop calculations. We show distributions for several observables for 4, 5 and 6 extra dimensions and demonstrate that the differential K-factors are far from being uniform.