FastJet

The FastJet package is a fast implementation of the kt and Aachen/Cambridge jet clustering algorithms. Since v2.0, it also provides an interface to external jet algorithms (e.g. SISCone) through a plugin system. It was originally designed by Gavin Salam and Matteo Cacciari. I have joined them since FastJet v2.2 (June 2007).

FastJet-Contrib

This is an area where we gather 3rd-party contributions to FastJet. Although individual contributions are maintained by their own authors, the "FastJet team" has developed the generic interface (similar to a package manager) and provide some level of Quality Assessment to guarantee a minimal standard and degree of coherence over the whole project.

SISCone

Seedless Infrared Safe Cone algorithm developed with Gavin Salam. This is the fast, infrared-and-collinear-safe cone algorithm ameant to cure the unsafeties of the JetClu and Midpoint algorithms used at the tevatron (and the ATLAS Cone initially introduced by the ATLAS collaboration for use at the LHC).

Microjets

QCD predictions for the inclusove jet cross-section at NLO matched to an all-order resummation of the leading logarithms of the jet radius R (at small R)

Jet Quality

This is an interactive webpage that allows you to observe the effect of varying the jet definition on the reconstruction of heavy objects decaying to dijets at the LHC. It illustrates the importance of caref ully choosing the appropriate jet definition for a given process and at a given scale. For more details, see the corresponding paper.