|Message: Re: Large energy range of primary particles||Not Logged In (login)|
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Hello, the reason to select FTFP_BERT as a recommended can be seen from Geant4 validation pages: http://geant4.cern.ch/results/index.shtml In short: FTFP describe well hadron inelastic interactions between 5 and 20 GeV, where QGS is not accurate, in particular, for proton and neutron production. For higher energies also FTF in general is better but difference is less. VI