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Re: Changes in PndTpcRiemannTrackingTask [message #12346 is a reply to message #12345] Tue, 26 July 2011 13:15 Go to previous messageGo to previous message
Lia Lavezzi
Messages: 291
Registered: May 2007
Location: Torino
first-grade participant

From: *pv.infn.it
Hi Johannes,
thanks for your reply.

Quote:

the GFKalman treats q/p as a free parameter (which can also change sign).
But in the RKTrackRep, the charge was fixed. I fixed this bug, and now the sign of the charge is set according to fState[0][0] in setData().

With your fix in the RKTrackRep, is the charge set to a fixed value along all the Kalman procedure, i.e. the Kalman is not allowed to change the sign of q/p anymore, or does the fix just set the final charge back to the input one when the Kalman output has the wrong sign (after all the fitting procedure)?

Quote:

I didn't check GeaneTrackRep yet, but maybe there is the same problem.

Are you looking also into GeaneTrackRep to check whether there is the problem or not? Just to know whether I have to investigate this by myself or not. Wink
Cheers,
Lia.
 
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