Re: BB mult

From: Hironori Ito (hito@students.phsx.ukans.edu)
Date: Tue Feb 06 2001 - 10:10:34 EST

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    	Hello.  What I am looking for is the background correction factor
    for BB Big Mult.  Can you tell me the right function for that???
    
    	Hiro
    
    On Mon, 5 Feb 2001, Yury Blyakhman wrote:
    
    > 	Hi, Hiro and everybody
    > 
    > Hironori Ito wrote:
    > > Hello.  Yury.  I have one question.  Is the correction factor for BB 
    > > Multiplicity in brahms_app/yb_app/dNdEta/BrAnaBB.cxx correct?
    > 
    >  Which factor? What line of the code? I haven't looked at this code
    > since Dec., but I think, everything was correct back then... Just tell
    > me, I'll check.
    > 
    >  BTW, I tried centrality 6% cut based on ZdcAdcSum vs. BigBBMultiplicity
    > and it works surprisingly good! It is absolutely vertex independent and
    > for narrow vertex cut agrees pretty well with Tiles 6% Centrality cut,
    > based on JH's code. Now I can produce dN/dEta information for huge
    > vertex (eta) range and it looks nice. I'll try to wrap it up in a first
    > approximation, check for bugs and produce some kind of a note about that
    > in couple of days.
    > 
    > 					Thanks,
    > 
    > -- 
    > 	Yury Blyakhman.
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