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CMS Note
Report number CMS-CR-2011-038
Title Validation of Geant4 Physics Models with LHC Collision Data
Author(s) Banerjee, Sunanda (Fermilab)
Publication 2011
Collaboration CMS Collaboration
Imprint 21 Feb 2011
Number of pages 7
Presented at Conference on Computing in High Energy and Nuclear Physics 2010, Taipei, Taiwan, 18 - 22 Oct 2010
Subject category Detectors and Experimental Techniques
Accelerator/Facility, Experiment CERN LHC ; CMS
Keywords General ; ECAL ; HCAL ; Software ; TestBeams ; Simulation
Abstract The CMS experiment has designed a strategy to validate Geant4 physics models using collision data from the LHC. Isolated charged particles are measured simultaneously in the tracker as well as the calorimeters. These events are selected using dedicated triggers and are used to measure the response in the calorimeter. Measurements of mean response, resolution, energy sharing between the electromagnetic and hadron calorimeters, shower shapes are directly compared with predictions from the various physics models in the Geant4 description. The broad range of energies available in collision data allows stringent tests of the accuracy of the models in reproducing the observed distributions.
Copyright/License Preprint: (License: CC-BY-4.0)

 


 Record created 2011-04-18, last modified 2018-06-07


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