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Re: Vertex fitters' problems [message #15028 is a reply to message #15025] Mon, 29 July 2013 11:11 Go to previous message
L. Zotti is currently offline  L. Zotti
Messages: 6
Registered: December 2010
occasional visitor
From: *to.infn.it
Dear All,
after the last modification of the PndChiVtxFitter.cxx
these are the main results that I got.
Resolution on x: 32 micron
index.php?t=getfile&id=7460&private=0
Resolution on y: 54 micron, why is it different from x?
index.php?t=getfile&id=7462&private=0
Resolution on z: 113 micron.
index.php?t=getfile&id=7461&private=0
Chi2 still some negative values: do you have suggestions on how to decide what is the best candidate in case of combinatorials?
index.php?t=getfile&id=7463&private=0
Mass of the D0 before and after the fit: after the fit we got a low number of D0 under the central peak
index.php?t=getfile&id=7464&private=0

Best regards,
Laura
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  • Attachment: chi2.png
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  • Attachment: mass_d0.png
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