|Message: Re: Missing implementation of deuteron elastic scattering||Not Logged In (login)|
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On Wed, 6 Dec 2006, N.P.M. Brantjes wrote: > *** Discussion title: Hadronic Processes > Email replies to PublicHyperNews@slac.stanford.edu must include: > In-Reply-To: <"/hadronprocess/608"@geant4-hn.slac.stanford.edu> > Subject: ...change this to be about your reply. > > HI, I want to simulate deuteron scattering on a carbon target. My > deuterons have a kinetic energy of around 500 MeV In Line 1258 of > G4HadronCrossSections.cc, the elastic cross section for deuterons and > Helium ions is hardcoded to 0. This process is therefore not implemented > for deuterons. > > I have a few questions about it. -Is this intentionally, or will this > situation be fixed in the near future? > Hello, In the new process G4UHadronElasticProcess it is fixed. This process is available since 8.1. > -When I put an arbitrary number here, the process takes place and there > is some particle change as a result. Does this particle change reflect > reality? > > -What kind of model do you advise for me to implement to fix this > problem? > > -As the deuteron elastic process is obviously not working, can I still > trust the implementation of the Deuteron inelastic process to reflect > reality? Elastic scattering of deuteron due to strong interaction is not the main process, because the cross section is relatively small and the effect is only scattering on small angle. > > -In the deuteron inelastic process, also deuteron breakup seems to > covered next to elastic scattering. Is there a particular reason for > this and is there a way for these two interactions to show up under a > different name? > > Thanks ahead, Klaas Brantjes University Groningen > For deuterons I would suggest to use binary cascade as inelastic interaction. Some example you can find out examples/extended/eletromagnetic/TestEm7 example/extended/hadronic/Hadr01 VI
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