FFTJet

The purpose of the FFTJet package is reconstruction of particle jets in High Energy Physics collider data. FFTJet considers the energy flow in the event at multiple angular resolution scales, locates jet-like structures using powerful Fourier-domain filtering techniques, and establishes hierarchical relationships between clusters found at different scales. With FFTJet, you will be able to:

Cleanly separate the tasks of defining "what is a jet", locating jets, selecting the event topology, and reconstructing jet energies
Utilize global, efficient, collinear and infrared safe jet algorithms
Optimally cluster jets in the presence of magnetic field
Take into account and suppress the detector noise
Understand, analyze, and visualize jet substructure
Apply unusual energy flow analysis techniques: fuzzy clustering and multiscale blob detection
Run parts of your jet reconstruction code on GPUs
And much more...

The FFTJet system is designed to be highly extensible, so that you can easily explore your own ideas about pattern recognition and jet energy reconstruction in HEP events.

View the FFTJet User Manual
Download FFTJet

Contact: Igor Volobouev