Prospect of Studies with QCD Jets in ATLAS

The understanding of QCD dijet and multijet events is crucial for most of the searches to be carried out at LHC. But the study of jet production is also a stringent test of perturbative QCD in high energy regime never probed so far. Measurements of the triple differential cross section can be used to constrain parton distribution functions. In this note an analysis of jet transverse momenta and invariant masses is performed, with particular emphasis on the kinematically explorable region and an estimation of present theoretical uncertainties.