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Home » PANDA » PandaRoot » Analysis » entries at unphysical mass after vertex fit (lambda vertex fit with PndKinVtxFitter results in better fwhm but large tails in Lambda mass)
Re: entries at unphysical mass after vertex fit [message #17630 is a reply to message #17625] Thu, 04 December 2014 11:49 Go to previous messageGo to previous message
Ralf Kliemt is currently offline  Ralf Kliemt
Messages: 500
Registered: May 2007
Location: GSI, Darmstadt
first-grade participant

From: *gsi.de
Hallo Albrecht,

Firstly I suggest you do a crosscheck with the other vertex fitter PndVtxPRG. From my understanding there you don't alter the momentum magnitude and energy of the daughter particles.

Secondly, you may want to study the fit quality (chisquare) for the unphysical candidates.

Kind regards.
Ralf
 
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