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Forum: Physics List
Re: Question nucleus not found - very perplexed (John McFee)
Re: Idea Re: nucleus not found - very perplexed (Vladimir Ivanchenko)
Date: 21 Jul, 2010
From: John McFee <John McFee>

The version of Geant4 is 4.9.2.p01 and I am using the QGSP_BIC_HP hadronic model. The error message not a G4 error. It is part of our code which flags a recoil nucleus at a primary interaction which shouldn't be there (by my estimation of what reactions should be taking place). 

Nevertheless, I solved my problem. I forgot that the volume of air present contains a finite percentage of Ar which accounts for the appropriate recoil nuclei (mainly through (gamma,alpha), (gamma,d) and (gamma,p) reactions.

Thank you for your interest anyway.

On Fri, 11 Jun 2010 20:33:37 GMT, Vladimir Ivanchenko wrote:
> Hello,
> Please, add more details: Geant4 version and Physics List. Also would be
> good to see the trace of the exception or precise warning message.
> VI

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