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Re: Update on eta_c reconstruction with STT and TPC [message #12354 is a reply to message #12112] Tue, 26 July 2011 17:34 Go to previous messageGo to previous message
Dima Melnychuk is currently offline  Dima Melnychuk
Messages: 213
Registered: April 2004
Location: National Centre for Nucle...
first-grade participant
From: *fuw.edu.pl

Concerning error messages from PndPidCorrelator, it really could be the place where tracks are lost.
With ideal pid in PndTpcRiemannTrackingTask I see the message from PndPidCorrelator

-W- PndPidCorrelator::GetTrackInfo :: Failed backward propagation

in average twice per event.

Whereas in case of specific particle hypothesis (pion or kaon) I see the same message 1 in 5 events.

This message is coming from PndPidTrackInfo.cxx and here tracks are rejected independent on momentum cut, actually this part of code is executed after cut on momentum.

Dima
 
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