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Re: PndKinVtxFitter [message #17160 is a reply to message #17159]

Tue, 12 August 2014 09:43

Ralf Kliemt
Messages: 507
Registered: May 2007
Location: GSI, Darmstadt

first-grade participant

From: *pool.mediaWays.net

Hello Aleksandr,

Your last assumption is correct. The Vertex Fitters work only on charged particles.

In your special case the vertex fit would not help you much. Both the psi2s and the j/psi decay at the interaction point (0,0,0) if you have not set a smeared interaction region durig simulations. The four momenta are already calculated at (0,0,0) by default.

Cheers
Ralf

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[Message index]

		PndKinVtxFitter By: Alexandr Zinchenko on Tue, 12 August 2014 08:48
		Re: PndKinVtxFitter By: Ralf Kliemt on Tue, 12 August 2014 09:43
		Re: PndKinVtxFitter By: Alexandr Zinchenko on Tue, 12 August 2014 13:22
		Re: PndKinVtxFitter By: StefanoSpataro on Tue, 12 August 2014 14:18

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