The results shown on this page use Jas4pp data-analysis package.

wget http://atlaswww.hep.anl.gov/asc/jas4pp/download/current.php -O jas4pp.tgz
tar -zvxf jas4pp.tgz
cd jas4pp
source ./setup.sh # takes 5 sec for first-time optimization

You can study this the geometry of the FCChh-v3 detector using sifcch3 link. This geometry corresponds to rfull005 tag SLCIO files.

Download Z'(10 TeV) to XX final state as:

hs-get tev10mumu_pythia6_zprime10tev_qqbar%rfull005  # qqbar
hs-get tev10mumu_pythia6_zprime10tev_ttbar%rfull005  # ttbar
hs-get tev10mumu_pythia6_zprime10tev_ww%rfull005     # W+W-

An example code which creates jet masses of anti-kT jets (R=0.8) is attached. jetmass.py. It fills 3 histograms with jet masses for leading antiKT jets (truth, PFO, Clusters). Run it as

fpad jetmass.py tev10mumu_pythia6_zprime10tev_ww%rfull005 

The created image is shown below

You can write a C++ code which calls C++ fastjets using the code example posted to intro.