# Analysis of fast simulations

Files after fast detector simulations are created using Delphes program. Assuming that you have installed either hs-tools or Jas4pp programs, you can use the “hs-get” command to download files. You can find all samples with fast simulations using the rfast tag. If you need to find all ROOT files for a given tag, say rfast100, use this command:

hs-find tev14_mg5%rfast100

which searches for all samples with the dataset name “tev14_mg5” (Madgraph5, 14 TeV samples). Then download a selected sample as:

hs-get tev14_mg5_nlo_httbar%rfast100

The description of the detector tags is given in Detector description.

# Analyzing ROOT files

Read the Delphes manual explaining how to analyze ROOT files from HepSim.

# Creating Delphes files

Read the section Creating fast simulations