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Changes between Version 6 and Version 7 of WorkBook/PileUp


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Timestamp:
Mar 6, 2013, 11:45:01 AM (12 years ago)
Author:
Michele Selvaggi
Comment:

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  • WorkBook/PileUp

    v6 v7  
    1818* {{{MeanPileUp}}}:
    1919
    20 the average amount of pile-up events per bunch-crossing. For each hard scattering, N pile-up events will be randomly chosen from the PileUp file, where N is a random number following Poisson statistics with a mean MeanPileUp.
     20the average amount of pile-up events per bunch-crossing. For each hard scattering, N pile-up events will be randomly chosen from the {{{PileUpFile}}}, where N is a random number following Poisson statistics with a mean {{{MeanPileUp}}}.
    2121
    2222* {{{ZVertexWidth}}}:
     
    3131=== Pile-up contamination ===
    3232
    33 The density (in GeV/A) of pile-up contamination (rho) per event is computed within the FastJetFinder module if the following parameters are defined:
     33The density (in GeV/A) of pile-up contamination (rho) per event is computed within the {{{FastJetFinder}}} module if the following parameters are defined:
    3434
    3535{{{
     
    3838}}}
    3939
    40 The method for the area calculation can also be specified (active area, passive area, Voronoi …) via the parameter AreaAlgorithm.
     40The method for the area calculation can also be specified (active area, passive area, Voronoi …) via the parameter {{{AreaAlgorithm}}}.
    4141
    4242=== Pile-up subtraction ===
     
    4444Since charged particle have already been subtracted to some extent, pile-up contamination only affects the jet energy resolution and the lepton and photon isolations.
    4545
    46 * Jet pile-up subtraction is done via the JetPileUpSubtractor module that takes as input the jet collection and rho:
     46* Jet pile-up subtraction is done via the {{{JetPileUpSubtractor}}} module that takes as input the jet collection and rho:
    4747
    4848{{{
     
    5151}}}
    5252
    53 * Isolation subtraction is done inside the Isolation module itself just by adding the line in the delphes card:
     53* Isolation subtraction is done inside the {{{Isolation}}} module itself just by adding the line in the delphes card:
    5454
    5555{{{
     
    5858
    5959
     60== Running Delphes with Pile-Up ==
    6061
    61 == Running Delphes with Pile-Up ==
     62Convert your Minimum bias sample into Delphes Root format:
     63
     64{{{
     65./DelphesSTDHEP examples/root_converter.tcl MinBias.root MinBias.hep
     66./DelphesHepMC examples/root_converter.tcl MinBias.root MinBias.hepmc
     67}}}
     68
     69Convert from Delphes format to binary
     70
     71{{{
     72./root2pileup MinBias.root MinBias.pileup
     73}}}
     74
     75Run Delphes on your sample X with pile-up:
     76
     77{{{
     78./DelphesSTDHEP examples/delphes_card_CMS_PileUp.tcl X_PileUp.root X.hep
     79}}}
    6280
    6381