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None Problem with QGSP_BERT_HP 

Forum: Physics List
Date: 29 Jun, 2010
From: Marco Pinto <Marco Pinto>

Hi everyone.

I am simulating neutron production through the 9Be(p,n) reaction (proton energy = 18 MeV). The problem that I have is with the physic list QGSP_BERT_HP.

I began my simulations with QGSP_BIC_HP and the results were close to the experimental ones. When I tried the QGSP_BERT_HP the results were more or less 8 times more neutrons produced.

I am using geant4 9.3 and I defined the physics packages making:
     runManager->SetUserInitialization(new QGSP_BERT_HP);
     runManager->SetUserInitialization(new QGSP_BIC_HP);

These were the only changes between runs.

Thanks, Marco

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