ATC: ATLAS Center at ANL

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[[community:hepsim:|<< back to HepSim manual]]

====== Fast detector simulation ======

====== Downloading ROOT files  ======
Files after fast detector simulations are created using [[http://cp3.irmp.ucl.ac.be/downloads/Delphes-3.3.0.tar.gz | Delphes-3.3.0]] programs.
Assuming that you have installed either** hs-tools** or **Jas4pp** programs, you can download

Here how you can find all samples that have "rfast" tag for download. Click here: [[http://atlaswww.hep.anl.gov/hepsim/list.php?find=rfast]]. If you need to find all ROOT files
for a give tag, say rfast004, use this command:

<code bash>
hs-find tev14_mg5%rfast004
</code>
which searches for all samples with the dataset name "tev14_mg5" (Madgraph5, 14 TeV samples).
Then download a selected sample as:

<code bash>
hs-get tev14_mg5_nlo_httbar%rfast004
</code>

The description of the detector tags is given in [[community:hepsim:usage_detectors|Detector description]].

====== Analysing ROOT files  ======

Read the [[https://cp3.irmp.ucl.ac.be/projects/delphes| Delphes manual]] explaining how to analyse ROOT files from HepSim.