Measuring two observables on a single jet

Speaker: Duff Neill, MIT

When: April 23, 2014 (Wed), 03:30PM to 04:30PM (add to my calendar)
Location: PRB 595

This event is part of the HET Seminar Series.

Abstract: With the excellent resolution of the LHC detectors, and the potential for new physics to hide itself in QCD backgrounds, increasingly detailed questions have been asked about the structure of jets. To squeeze the most information out, often several observables are measured and correlated at once (ratio of 1 and 2 subjettiness, for instance), and a predictive understanding of the QCD background is required. As a simpler case, I will explain the effective theory structure of measuring two different angularities. No single factorization can be written that covers all of the jet-like phase space. Lessons will be learned about the magic of taking EFT power counting seriously, and applications to more interesting phenomenological observables proposed. This will be a blackboard talk.