|Message: Re: Tracking Cuts||Not Logged In (login)|
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*** Discussion title: Event and Track Management In-Reply-To: <"/eventtrackmanage/61/1"@geant4-hn.slac.stanford.edu> Subject: Tracking Cuts On Mon, 9 Dec 2002, Makoto Asai wrote: > > In Geant4, there is no "energy-cut" applied for a track. > The "cut" the user defines is "production" cut-off which > is applied for generating secondaries caused by an interaction > of a track. This production cutt-off is utilized to avoid > infrared divergence of some EM processes. OK, I was a bit confused. G4ParticleWithCuts creates a G4double vector SetCutInMaxInteractionLength corresponding to a length cut in the various materials. This then appears to be converted to another G4double vector theKineticEnergyCuts corresponding to an energy cut in the various materials. Both of these vectors are then only used as a reference for processes to determine if secondaries should be created? Does one of the managers handle these secondary cuts or are the cuts handled internally in each process? Thanks for your help.
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