Here are the links to HERWIG++ samples with pileup (UE) events generated for the 14 TeV center-of-mass energy (pp collisions). Events were processed using the Delphes 3.05 fast detector simulation.
All data are stored in the ROOT format using the standard Delphes 3.05 output. Therefore, it is recommended to install Delphes 3.0.4 and look at the example explaining how to read such ROOT files (see the directory “Examples” inside the Delphes package).
The samples use the ATLAS detector geometry located in “examples/delphes_card_ATLAS.tcl” of the Delphes 3.05 installation. There is only one difference: Jets are reconstructed using AntiKT jets with the cone 0.5.
Please read the Section How to download
Here is the log file for 30000 UE events (which were used as a pool of events for 200 signal events).
Click to display ⇲
Click to hide ⇱
Statistics for the UE process: generated number of Cross-section events attempts (nb) ============================================================================== Total: 248527 248527 2.31723e+08 ============================================================================== Per matrix element breakdown: MEQCD2to2Fast 248527 248527 2.31723e+08 ============================================================================== ============================================================================== Eikonalized and soft cross sections: Model parameters: ptmin: 3.5973 GeV, mu2: 1.11 GeV2 DL mode: 2, CMenergy: 14000 GeV hard inclusive cross section (mb): 231.454 soft inclusive cross section (mb): 68.5499 total cross section (mb): 113.95 inelastic cross section (mb): 77.963 soft inv radius (GeV2): 0.382009 slope of soft pt spectrum (1/GeV2): -0.338063 Average hard multiplicity: 2.96865 Average soft multiplicity: 0.871836 ============================================================================== >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>> ThePEG - Toolkit for HEP Event Generation - version 1.8.1 <<<<<<<<<< <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ============================================================================== Statistics for event handler 'LHCHandler': generated number of Cross-section events attempts (nb) ============================================================================== Total (from weighted events): including vetoed events 84.6(3)e+00 ============================================================================== Total (from unweighted events): 30000 38053 66.7(5)e+00 ============================================================================== Per matrix element breakdown: MEMinBias 30000 38053 66.7(5)e+00 ==============================================================================
If you need a complete HERWIG++ log file for a single ROOT file, take it from LHC_pileup.log.gz
Get the ROOT files grouped from this download link In total, there are 96 files, with 200 events in each file. Each event consists of 140 MinBias events
Here is an example for downloading 5 files:
python download.py 5 delphes3/minbias/mu50/signal_pileup herwigpp_pileup_50mu
Get the ROOT files grouped from this download link In total, there are 96 files, with 200 events in each file. Each event consists of 140 MinBias events
Here is an example for downloading 5 files:
python download.py 5 delphes3/minbias/mu140/signal_pileup herwigpp_pileup_140mu
If you need to find the effect of pileup on top reconstruction or a jet measurement, you need to run the analysis code over signal MC and then over the signal+pileup MC files. Read analyse_d3
— Sergei Chekanov 2013/03/06 20:48