Geant4 electromagnetic physics for high statistic simulation of LHC experiments

An overview of the current status of electromagnetic physics (EM) of the Geant4 toolkit is presented. Recent improvements are focused on the performance of large scale production for LHC and on the precision of simulation results over a wide energy range. Significant efforts have been made to improv...

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Bibliographic Details
Published in:Journal of physics. Conference series 2012-01, Vol.396 (2), p.22013-15
Main Authors: Allison, J, Apostolakis, J, Bagulya, A, Champion, C, Elles, S, Garay, F, Grichine, V, Howard, A, Incerti, S, Ivanchenko, V, Jacquemier, J, Maire, M, Mantero, A, Nieminen, P, Pandola, L, Santin, G, Sawkey, D, Schälicke, A, Urban, L
Format: Article
Language:English
Subjects:
Algorithms
Benchmarking
Bremsstrahlung
Computer simulation
Physics
Splitting
Statistics
Transport
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Summary:An overview of the current status of electromagnetic physics (EM) of the Geant4 toolkit is presented. Recent improvements are focused on the performance of large scale production for LHC and on the precision of simulation results over a wide energy range. Significant efforts have been made to improve the accuracy without compromising of CPU speed for EM particle transport. New biasing options have been introduced, which are applicable to any EM process. These include algorithms to enhance and suppress processes, force interactions or splitting of secondary particles. It is shown that the performance of the EM sub-package is improved. We will report extensions of the testing suite allowing high statistics validation of EM physics. It includes validation of multiple scattering, bremsstrahlung and other models. Cross checks between standard and low-energy EM models have been performed using evaluated data libraries and reference benchmark results.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/396/2/022013