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Re: Geant3 tracking cuts for the EMC [message #9563 is a reply to message #9562]

Fri, 16 October 2009 14:40

Bertram Kopf
Messages: 110
Registered: March 2006

continuous participant

From: *ep1.ruhr-uni-bochum.de

Hi Christian,

Christian Hammann wrote on Fri, 16 October 2009 13:58

I have noticed that the tracking thresholds for Geant3 are set to 1MeV by default, which is probably to high. Also they are set globally, so it seems to me they are not tuned in any reasonable way for the EMC.

...

Are there some tuned cuts available? Do I have to load an additional file to set proper cut values?

in my point of view the 1MeV threshold cut is definitely too high. To get a rough estimate for reasonable thresholds, here are the numbers which we have used for our Physics Book studies (G4 simulation):

minimum energy for all particles: 0. keV
energy cut for ion killing: 5. keV
energy cut for neutron killing: 0.01 keV

These cuts have been taken over from BaBar and are therefore tuned for this experiment. Since PANDA will measure in similar energy ranges, I think that such thresholds are at least good starting points for our simulations.

Best regards,
Bertram.

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[Message index]

		Geant3 tracking cuts for the EMC By: Christian Hammann on Fri, 16 October 2009 13:58
		Re: Geant3 tracking cuts for the EMC By: Bertram Kopf on Fri, 16 October 2009 14:40
		Re: Geant3 tracking cuts for the EMC By: Bertram Kopf on Fri, 16 October 2009 15:06
		Re: Geant3 tracking cuts for the EMC By: Bertram Kopf on Fri, 16 October 2009 16:29
		Re: Geant3 tracking cuts for the EMC By: Christian Hammann on Mon, 19 October 2009 12:10
		Re: Geant3 tracking cuts for the EMC By: StefanoSpataro on Fri, 16 October 2009 15:10
		Re: Geant3 tracking cuts for the EMC By: Bertram Kopf on Fri, 16 October 2009 15:25
		Re: Geant3 tracking cuts for the EMC By: StefanoSpataro on Fri, 16 October 2009 15:30
		Re: Geant3 tracking cuts for the EMC By: Jens Sören Lange on Fri, 16 October 2009 17:36
		Re: Geant3 tracking cuts for the EMC By: Christian Hammann on Mon, 19 October 2009 12:00
		Re: Geant3 tracking cuts for the EMC By: Mohammad Al-Turany on Mon, 19 October 2009 15:29

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