Jetographie: jets de troisième géneration – Jet3G

This project aims to create new methods to extract the best possible information from jets in events at the Large Hadron Collider (LHC) at CERN, Geneva, both in proton-proton (pp) and heavy-ion (PbPb) collisions. It is motivated by the unprecedented complexity of the LHC environment: in pp collisions the LHC will span jet energies from tens of GeV to several TeV and will be plagued by large amounts of pileup; in PbPb collisions, jets will have to be identified and their structure understood despite an overwhelming soft background. It will develop a third generation of jet-finding tools, or tools for "jetography". This involves learning how to view collider events flexibly, adapting both to the hard scales that are present in each specific event and to each event's specific level of noise coming from pileup and from the underlying event.