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Keywords: Tracking Particle Cuts
Forum: Event and Track Management
Re: Question Tracking Cuts (Chris Savage)
Date: 09 Dec, 2002
From: Makoto Asai <Makoto Asai>

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.

Since you remove all of the EM processes for muon except
your own process, your process must take care of stopping a track.
For example, if a muon track comes down to a certain energy,
your process should propose the remaining range and take away
all kinetic energy from the track. Please note that, for the
case of muon, it may decay even after it stops.

In Geant4 kernel, given there may be a chance of decay at
rest, tracking part will not kill any track unless a process
proposes to kill it.

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1 None: Re: Tracking Cuts   (savage@neutrino.physics.ucsb.edu - 10 Dec, 2002)
(_ None: Re: Tracking Cuts   (Makoto Asai - 10 Dec, 2002)
(_ None: Re: Tracking Cuts   (savage@neutrino.physics.ucsb.edu - 10 Dec, 2002)
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