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Re: Charge in LheTrack and Kalman [message #10726 is a reply to message #10725] Fri, 21 May 2010 18:08 Go to previous message
Anonymous Poster From: *e18.physik.tu-muenchen.de
Hi Lia,

in principle the charge can change in the fit. q/p, i.e. the signed curvature is a variable of the fit. It could be possible in some cases (very few hits close to each other, very high momenta, ....) that the sign of q/p can be wrongly reconstructed. q/p has a finite resolution. The track topology of these 3% of tracks must be special...

Cheers, Christian
 
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