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Re: Changes in PndTpcRiemannTrackingTask [message #12347 is a reply to message #12346]

Tue, 26 July 2011 13:45

Johannes Rauch
Messages: 41
Registered: September 2010
Location: TUM

continuous participant

From: *natpool.mwn.de

Quote:

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)?

The Kalman is fitting q/p, and the sign of q/p can change during the fitting process.
The problem was that a change in sign of q/p was not correctly passed to the RK propagator, which is now fixed.

That means: The absolute value of the charge is fixed, its sign can change.

I just looked into GeaneTrackRep and there everything seems to be fine.

cheers,

Johannes

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[Message index]

		Changes in PndTpcRiemannTrackingTask By: Johannes Rauch on Mon, 25 July 2011 15:21
		Re: Changes in PndTpcRiemannTrackingTask By: Dima Melnychuk on Mon, 25 July 2011 21:53
		Re: Changes in PndTpcRiemannTrackingTask By: StefanoSpataro on Mon, 25 July 2011 23:06
		Re: Changes in PndTpcRiemannTrackingTask By: Dima Melnychuk on Mon, 25 July 2011 23:24
		Re: Changes in PndTpcRiemannTrackingTask By: Dima Melnychuk on Tue, 26 July 2011 09:30
		Re: Changes in PndTpcRiemannTrackingTask By: Johannes Rauch on Tue, 26 July 2011 11:33
		Re: Changes in PndTpcRiemannTrackingTask By: Lia Lavezzi on Tue, 26 July 2011 11:53
		Re: Changes in PndTpcRiemannTrackingTask By: Johannes Rauch on Tue, 26 July 2011 12:12
		Re: Changes in PndTpcRiemannTrackingTask By: Lia Lavezzi on Tue, 26 July 2011 13:15
		Re: Changes in PndTpcRiemannTrackingTask By: Johannes Rauch on Tue, 26 July 2011 13:45
		Re: Changes in PndTpcRiemannTrackingTask By: Lia Lavezzi on Tue, 26 July 2011 14:01
		Re: Changes in PndTpcRiemannTrackingTask By: Johannes Rauch on Tue, 26 July 2011 14:07
		Re: Changes in PndTpcRiemannTrackingTask By: Anonymous Poster on Tue, 26 July 2011 14:17
		Re: Changes in PndTpcRiemannTrackingTask By: Lia Lavezzi on Tue, 26 July 2011 15:47
		Re: Changes in PndTpcRiemannTrackingTask By: Johannes Rauch on Tue, 26 July 2011 20:03
		Re: Changes in PndTpcRiemannTrackingTask By: Johannes Rauch on Wed, 27 July 2011 11:20
		Re: Changes in PndTpcRiemannTrackingTask By: Dima Melnychuk on Wed, 27 July 2011 12:00

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