Enabling comparison of UrQMD with Geant4 hadronic models

Details Enabling comparison of UrQMD with Geant4 hadronic models Enabling comparison of UrQMD with Geant4 hadronic models

2010-12-19

arxiv.org/abs/1012.4165v1

CERN LCGAPP 2010-04

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 5 Figures

Scientific paper

Geant4 has an abundant set of physics models that handle the diverse interaction of particles with matter across a wide energy range. However, there are also many well established reaction codes currently used in the same fields where Geant4 is applied. One such code is the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model. In order to take advantage of the UrQMD code, we create a tool to enable comparisons among UrQMD and Geant4 hadronic models. This tool allows a user to process the output file of UrQMD through Geant4 toolkit, while at the same time, can choose among different Geant4 hadronic model generators. As an example, the UrQMD model is compared with the HARP-CDP experimental data and with the Binary and FRITIOF generators, in the framework of Geant4. It is shown that the UrQMD model can better reproduce charged pion production for p+Cu and Pb interactions at 3, 8 and 15 GeV/c, and is a good candidate for Geant4 hadronic models.

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