image/svg+xml reader electrons all stable particles muons ε, σ ε, σ calorimeterand energy flow unique object finder electrons photons jets muons MET LHEF HepMC ProMC Configfile FastJet particle propagator pile-up merger Pile-upfile ROOT Analysismacros Eventdisplay LHCO merger pile-up subtractors b-, τ-tagging energy scale isolation isolation isolation