QCD and the Search for Exotic Physics

Signature based searches for new physics probe the full range of the collision energy spectrum probed by the Large Hadron Collider. Often the most numerous decays,and thus those with the highest reach in new particle mass, occur in channels with at least one hadronic object and therefore requires control and understanding of the corresponding QCD background. This talk will cover recent search results by the ATLAS experiment highlighting the various techniques used to suppress and understand QCD.