FastJet user manual

TL;DR

FastJet is a comprehensive C++ toolkit for jet finding and analysis in particle physics, offering efficient algorithms, substructure tools, and noise mitigation methods for collider data analysis.

Contribution

It introduces a unified, efficient software package that integrates multiple jet algorithms and analysis tools, enhancing particle physics research capabilities.

Findings

Provides efficient implementations of key jet algorithms

Includes tools for jet substructure analysis and noise suppression

Supports a wide range of collider collision types

Abstract

FastJet is a C++ package that provides a broad range of jet finding and analysis tools. It includes efficient native implementations of all widely used 2-to-1 sequential recombination jet algorithms for pp and e+e- collisions, as well as access to 3rd party jet algorithms through a plugin mechanism, including all currently used cone algorithms. FastJet also provides means to facilitate the manipulation of jet substructure, including some common boosted heavy-object taggers, as well as tools for estimation of pileup and underlying-event noise levels, determination of jet areas and subtraction or suppression of noise in jets.