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Re: Kalman low efficiency [message #11998 is a reply to message #11967] Mon, 13 June 2011 10:21 Go to previous messageGo to previous message
Anonymous Poster From: *dynamic.mnet-online.de
Hi Susanna,

sorry for not replying earlier, I was out of office...

I see, the GENFIT flag does not explain things. There is one more thing that just came to my mind:
What values for the momentum and position initialization due you use for building the GeaneTrackRep objects that go into GENFIT?

I ask this because I remember a similar behavior in cases where the init pos and mom values were not very good in some test I did in the past. What was happening was that I was basically falling into the left-right ambiguity normal for drift chambers.

Cheers, Christian
 
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