Speaker
Abhijith Gandrakota
Description
Abstract:Finding multi-jets resonances at LHC is almost impossible, due to the huge QCD multi-jet backgrounds. We have created new techniques for these searches that suppress QCD backgrounds. Our tools make use of the rich information from the internal kinematics of multi-jet decays to form Dalitz variables. These variables can be used to identify inherent differences in multi-jet topologies from QCD and signal. We implement these techniques in a dataset taken using the CMS detector with low thresholds (Data Scouting) and were sensitive to BSM signatures at 200 GeV. We are extending these Dalitz techniques to identify the jet substructure in boosted signal decays. This would enable us to search for even lower mass resonances.