24–31 Jul 2009
Wayne State University
US/Eastern timezone

Top Jets and Substructure at LHC

27 Jul 2009, 14:40
15m
Wayne State University

Wayne State University

Detroit, Michigan 48201, USA
Top Quark Physics Top Quark Physics I

Speaker

Mr Leandro Almeida (Stony Brook University)

Description

Study of high-pt jets from QCD and from highly-boosted massive particles such as tops, W, Z and Higgs, and argue that infrared-safe observables can help reduce QCD backgrounds. Jets from QCD are characterized by different patterns of energy flow compared to the products of highly-boosted heavy particle decays, and we employ a variety of jet shapes, observables restricted to energy flow within a jet, to explore this difference. Results from Monte Carlo generators and arguments based on perturbation theory support the discriminating power of the shapes we refer to as planar flow and angularities. We emphasize that for massive jets, these and other observables can be analyzed perturbatively.

Author

Mr Leandro Almeida (Stony Brook University)

Presentation materials