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Re: Chi2 of kinematic and vertex fitters [message #15760 is a reply to message #15753] Tue, 10 December 2013 18:16 Go to previous messageGo to previous message
StefanoSpataro is currently offline  StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino
first-grade participant

From: 140.181.10*
I tried to do the following to avoid fit errors:

                        PndKinVtxFitter vtxfitter(jpsi[j]);     // instantiate a vertex fitter
                        if (!vtxfitter.Fit()) continue;


But I have still negative chi2. Maybe I missed something?
 
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