RE: [Brahms-dev-l] TPM1 vertexing in GTR files

Hiro,
  I sent the message before I meant to, so the second message had all of the modules I include.  Now I'm not sure of every single detail of the multiplicity code, but in BrMultUtil, the code looks for three types of TPM1 vertices, but only the Track Projection Vertex is returned when FindVertexAll is called.  So I have a feeling that effectively the TPM1 vertex is not being used to calibrate the multiplicity array.  

  In addition to that, I will be submitting a whole bunch of condor jobs to generate the normalization weights for minimum bias events.  I'll have to do the same for all triggered events, and we should discuss which ones go into the database.  More on that later.

Erik


-----Original Message-----
From: Hironori Ito [mailto:hito@rcf.rhic.bnl.gov]
Sent: Tue 9/20/2005 1:06 PM
To: Johnson, Erik B; devlist
Subject: Re: [Brahms-dev-l] TPM1 vertexing in GTR files
 
Hello.  I am not sure which modules you meant by "these mdoules".  But, 
track vertex exists.   gtr/dst include track vertex.  It is done in gtr 
(GlobalTrack.C).  In this script, there is call to BrMrsTrackingModule.  
In this module, it sets a track vertex (part of data object 
BrMrsTrack--> BrGlbTrack) in BrMrsTrackingModule::TrackToVertex 
method.   In dst job, it is just copied from gtr to dst data object ( 
fVtxX,Y,Z in BdstMrsTrack from BdstTrack) by BdstMrsTrackModule::Event 
--> FillTrack.

Now, if you are talking about Track Projection Vertex, it is not 
included in the current gtr script.  (We can include it since dst data 
object already include this.)  However, the same thing can be easily 
accomplished by averaging MRS track vertex in your own script.  In fact, 
BrTrackProjectionVertex module does exactly that (simple average).


Hiro


Johnson, Erik B wrote:

>Brahms,
>   I have been using these modules to get me a vertex from the TPM, but I do not see them in the ltr reconstruction script, the gtr resonstruction script, or the dst script.  Is the TPM vertex not generated?  If it is where and when is it generated?   Thanks.
>Erik
>
>
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