This is a tool for calculating and applying cluster-based pileup mitigation and subtraction algorithms. It also includes tools for writing out certain quantities to an output tree for performance testing.

This package makes use of UChicago's xAODAnaHelpers package.

To install,

mkdir myRootCore && cd $_
setupATLAS
rcSetup Base,2.4.33
git clone https://github.com/UCATLAS/xAODAnaHelpers
git clone https://github.com/AvivCukierman/VoronoiWeightTool
git clone https://github.com/AvivCukierman/Voronoi_xAOD
mv Voronoi_xAOD MyAnalysis
rc checkout_pkg atlasoff/AsgExternal/Asg_FastJet/tags
rc checkout_pkg atlasoff/AsgExternal/Asg_FastJetContrib/tags
rc find_packages
rc compile

Two sample run scripts (run_withTool_test.sh, for running on a file stored locally) and (run_withTool_jz1_lsf.sh, for running on a file stored on the grid; uses DQ2 which is currently deprecated) are included in the scripts folder. The --driver option allows you to run on batch, by specifying --driver lsf. I'll document this better later but just ask me for help if you need it for now.

This analysis applies the VoronoiWeightTool tool for applying Voronoi weights to input clusters. It then clusters the resulting clusters into jets using JetReclustering.

This tool calculates two things. First, it matches jets in a jet container to jets in a truth jet container. Then, it attaches a decoration to each truth jet as the minimum distance to any other truth jet (pT > 5 GeV) and to each reco jet as the minimum distance to any other reco jet (pT > 2 GeV). There is also a "isPU" label attached to reco jets that are more than 0.6 from any truth jet above 5 GeV. These metrics are for performance studies, as we look at reconstructed jets matched to isolated truth jets for performance studies, and also calculate the fake rate.

This tool writes out a tree containing some quantities necessary for performance testing, such as reconstructed pT, matched truth jet pT, etc. Again, this tool is for performance studies.