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Keywords: neutrons, elastic process, LHEP_PRECO_HP
Forum: Hadronic Processes
Re: None low neutrons elastic process (habib)
Date: 29 May, 2006
From: Dennis H. Wright <Dennis H. Wright>

Did you use the unmodified version of LHEP_PRECO_HP or did you make
changes as your included code seems to indicate?   One possible source
of problems is that there is no overlap in the energy ranges of the 
neutron LE and HP models in your physics list.  The lower limit for the 
G4LENeutron models should always be 19.9 MeV instead of 20.0 MeV.   But 
if you used the unmodified LHEP_PRECO_HP physics list, this is already 
done for you. 

I would also recommend that you upgrade to Geant4 8.0 p01, which has 
improved and re-organized physics lists.   LHEP_PRECO_HP is still 
available in that release.


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