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Using RKTrackRep in the Kalman [message #15002] Tue, 23 July 2013 15:51 Go to previous message
StefanoSpataro is currently offline  StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino
first-grade participant

From: 2.235.190*
Dear all,
I added the possibility to use different track representations in the Kalman Filter/Daf.
By default GeaneTrackRep is used (tracrep = 0).

If you modify your reco macro adding the following line:

recoKalman->SetTrackRep(1);


you can use RKTrackRep (tracrep = 1).

I have done quick studies simulating 1000 muons in the central tracker ( 20° < theta < 120°), mvd+stt+gem.

At 1 GeV/c, reconstructed momentum distribution (red GeaneTrackRep, blue RKTrackRep):

index.php?t=getfile&id=7449&private=0

At 0.5 GeV/c, reconstructed momentum distribution (red GeaneTrackRep, blue RKTrackRep):

index.php?t=getfile&id=7450&private=0

The results are similar, then the track representation seems to work. The results are better for GeaneTrackRep.

I did not check yet the forward tracking.
  • Attachment: comp1.gif
    (Size: 8.12KB, Downloaded 230 times)
  • Attachment: comp05.gif
    (Size: 7.82KB, Downloaded 212 times)
 
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