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Re: STTPoints do not match with STTHelixHit [message #8286 is a reply to message #8283] Thu, 23 April 2009 16:22 Go to previous messageGo to previous message
StefanoSpataro is currently offline  StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino
first-grade participant

From: *to.infn.it
Hi,
I have tried to run run_sim_sttcombi_pgun.C (modified to have 3 pions per event and with the momentum range suggested by Tobias), 10 events, and then run_rigi_sttcombi.C.

Just plotting from points.root:

cbmsim.Draw("STTPoint.GetXtot():STTPoint.GetZtot()","","",1,nevt)

from digi.root:

cbmsim.Draw("SttHelixHit.fY:SttHelixHit.fZ","","",1,nevt)

(where nevt is the number of the event that I want to analyse) I can see the same behaviour: it seems that there are still some problems with the z coordinate for low momentum tracks in helixhit.


 
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