Abstract

The production of direct photons at ATLAS will be ideal tests of perturbative QCD (pQCD) in a kinematic region never observed before. Gaining a deeper understanding of pQCD is essential to searches for new physics at the LHC. In addition, differential cross-section measurements of direct photon production can be used to constrain parton density functions. An introduction to ATLAS, the data it has already taken, along with first and future direct photon measurement plans will be presented.