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Re: Vertex fitter(s) and B field setting in pandaroot release. [message #17849 is a reply to message #17843]

Fri, 06 February 2015 15:23

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

first-grade participant

From: *gsi.de

Hi Elisabetta,

The line

RhoCalculationTools::ForceConstantBz(20.0);

tells the analysis framework (Rho) to assume an artificial, constant B-field. Every fitter which needs the B-field (i.e. all vertexers!) will see the constant B_z, if enabled. I would not recommend using it unless you don't have your magnetic field parameter file on hand.

I strongly encourage to use the very same field settings in the whole chain of processing. Which one to pick, Stefono should tell you.

Cheers
Ralf

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[Message index]

		Vertex fitter(s) and B field setting in pandaroot release. By: Elisabetta Prencipe (2) on Fri, 06 February 2015 10:54
		Re: Vertex fitter(s) and B field setting in pandaroot release. By: Ralf Kliemt on Fri, 06 February 2015 15:23
		Re: Vertex fitter(s) and B field setting in pandaroot release. By: StefanoSpataro on Fri, 06 February 2015 15:29
		Re: Vertex fitter(s) and B field setting in pandaroot release. By: Elisabetta Prencipe (2) on Fri, 06 February 2015 21:36
		Re: Vertex fitter(s) and B field setting in pandaroot release. By: StefanoSpataro on Fri, 06 February 2015 22:05
		Re: Vertex fitter(s) and B field setting in pandaroot release. By: Ralf Kliemt on Mon, 09 February 2015 10:30
		Re: Vertex fitter(s) and B field setting in pandaroot release. By: Elisabetta Prencipe (2) on Mon, 09 February 2015 10:43

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