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Re: negative chi2 in PndKinVtxFitter ! [message #12759 is a reply to message #12751]

Mon, 31 October 2011 09:15

Ralf Kliemt
Messages: 508
Registered: May 2007
Location: GSI, Darmstadt

first-grade participant

From: *pool.mediaWays.net

Hello Albrecht,

Thanks for finding that. I want to make two remarks. First, the PndKinVtxfitter is not the "final product" as everybody wants it to be. As discussed with Jim, the developer will hopefully be invited for a period to finalize it. Second, the fitter is using always a list of true reconstruction tracks, not intermediate composite particles. Hence it tries to fit your K+K-pi+ to one vertex.

Greetings.
Ralf

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[Message index]

		negative chi2 in PndKinVtxFitter ! By: Albrecht Gillitzer on Wed, 26 October 2011 10:21
		Re: negative chi2 in PndKinVtxFitter ! By: Marius Mertens on Wed, 26 October 2011 13:00
		Re: negative chi2 in PndKinVtxFitter ! By: Ralf Kliemt on Mon, 31 October 2011 09:15
		Re: negative chi2 in PndKinVtxFitter ! By: Marius Mertens on Mon, 14 November 2011 16:16
		Re: negative chi2 in PndKinVtxFitter ! By: Ralf Kliemt on Mon, 14 November 2011 16:38
		Re: negative chi2 in PndKinVtxFitter ! By: Marius Mertens on Mon, 14 November 2011 19:11
		Re: negative chi2 in PndKinVtxFitter ! By: Ralf Kliemt on Mon, 14 November 2011 22:54
		Re: negative chi2 in PndKinVtxFitter ! By: Marius Mertens on Tue, 15 November 2011 00:05

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