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Re: Weird STT reconstruction: efficiency depends on charge [message #5674 is a reply to message #5673] Mon, 21 January 2008 16:52 Go to previous messageGo to previous message
Pablo Genova is currently offline  Pablo Genova
Messages: 32
Registered: May 2007
continuous participant
From: *PV.INFN.IT
I checked that with the old version it is working, but I still have to understand why with the new one is not!

For the question of the reconstruction at low theta angles, it might be that the zed procedure fails, but I think that this is is a different problem from the complete failure of the total momentum for positive tracks (the former is related to the zed reconstruction, the latter to the reconstruction of the radius of curvature, which, in our code, are done separately - first the curvature, then the zed - if the latter fails also the former fails but the vice versa in not necessairly true).

ciao, Pablo
 
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