Are was one of the first people to recognize that jet substructure can be a powerful new tool in the LHC new physics tool box. Since then, so-called fat-jet or subjet analyses have been a fast moving field of LHC phenomenology - it will happen, so you better learn how it works. From Are!
Here is his original abstract: High jet activity at a hadron collider should come as no surprise, and with the imminent arrival of LHC data there has lately been a push, both experimental and theoretical, to extract as much information from jets as possible. In particular, substructure in jets from hadronically decaying boosted massive particles, so-called "fat jets", have received a lot of attention. We look at the "fat" opportunities in SUSY models, and discuss three specific scenarios where jet-substructure turns out to be crucial for discovery or the extraction of parameters.
