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Re: GENFIT for transverse momenta < 200 GeV/c strange?! [message #11219 is a reply to message #11218] Mon, 22 November 2010 20:56 Go to previous messageGo to previous message
David Pohl is currently offline  David Pohl
Messages: 18
Registered: October 2009
Location: FZ Juelich
occasional visitor

From: *pools.arcor-ip.net
Hi Everybody,

I found some cases where the helix prefit is still better than
the kalman fit. Again I used the same parameters but different
particles.

Kaons (efficiency loss, background):
index.php?t=getfile&id=6192&private=0

Protons (efficiency loss, worse result):
index.php?t=getfile&id=6193&private=0

The flags for the failed Kalman fits are in both cases:
90%: -1
10%: -2

@Lia: thank you for the short tutorial Razz

greetings,
David
 
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