[DIRC] dircprop

[Jochen Schwiening]

Dear Charles,

Carsten should confirm or contradict but I believe that drcprop does not 
process the track, only handles ray tracing of the photons.
If you're asking because of the question of total Cherenkov track 
resolution: the resolution defined as single photon resolution divided 
by sqrt(N) is the DIRC-only part of the resolution, the appropriate 
contribution from multiple scattering and tracking resolution need to be 
added (in quadrature) to get to the separation power performance.
One of the reasons for pursuing Geant4 in parallel with drcprop is 
indeed the option to include tracking/multiple scattering as well as 
physics generators to simulate the particle and photon phase space.

Cheers,
	Joe

hyde at jlab.org wrote the following on 5/16/2013 16:54:
> Carsten,
> Does dircprop include multiple scattering of the primary charged
> particle in the DIRC bar?
>
> Charles
>
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