HepSim

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[[fcs:fcchh|<< back]]

====== Boosted particle studies ======

The results shown on this page use [[https://atlaswww.hep.anl.gov/asc/jas4pp/|Jas4pp]] data-analysis package.
<hidden Click here to show how to install it>
<code bash>
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
</code>
</hidden>

===== SiFCC detector =====


You can study this the  geometry of the FCChh-v7 detector using [[http://atlaswww.hep.anl.gov/hepsim/soft/detectors/sifcch7/sifcch7.html|sifcch7 description]]. This geometry corresponds to [[http://atlaswww.hep.anl.gov/hepsim/list.php?find=rfull009|rfull009 tag]] SLCIO  files.

Download Z'(10 TeV) to XX final state as: 
<code bash>
hs-get tev10mumu_pythia6_zprime10tev_qqbar%rfull009  # qqbar
hs-get tev10mumu_pythia6_zprime10tev_ttbar%rfull009  # ttbar
hs-get tev10mumu_pythia6_zprime10tev_ww%rfull009     # W+W-
</code>

An example code which creates jet masses of anti-kT jets (R=0.8) is {{:fcs:fcchh:jetmass.py|}}. 
It fills 3 histograms with jet masses for leading in pT antiKT jets for Z(10 TeV) to W+W- sample  (truth, PFO, Clusters).
Run it as:

<code bash>
fpad jetmass.py tev10mumu_pythia6_zprime10tev_ww%rfull009 
</code>

The created image is shown below 
<hidden>
{{:fcs:fcchh:jetmass.png?500|}}
</hidden>
You can write  a C++ code which calls the FastJet (with jet substructure variables) using the packages posted to [[fcs:fcchh:intro]].