Re: AnNote23: dN/dEta from TPM1

From: Christian Holm Christensen (cholm@hehi03.nbi.dk)
Date: Tue Feb 20 2001 - 10:13:38 EST

  • Next message: Bjorn H Samset: "Re: AnNote23: dN/dEta from TPM1"

    Hi all,
    
    On Tue, 20 Feb 2001 12:23:31 +0100 (CET)
    Fouad Rami <Fouad.Rami@IReS.in2p3.fr> wrote
    concerning ": Re: AnNote23: dN/dEta from TPM1":
    > 
    > 
    > On Tue, 20 Feb 2001, Bjorn H Samset wrote:
    > 
    > > 
    > > >   - Looking at Fig.4 in the report of ... 
    > > 
    > > Not if you look at their figure 5. ... 
    > 
    >   The bin size in Fig.4 and 5 is = 8cm.
    
    I did some futher work on the calibrations as outlined in BAN22. As
    mentioned there, I used 8 vertex bins |Vz| < 50 cm, and 100 bins in
    M. That resulted in the figures 4 and 5. As said in BAN22, the
    non-zero slope is something that need to be resolved. 
    
    So I tried to go to the other extreem with  50 vertex bins in |Vz| <
    50 cm, and 500 M bins. Then the slopes become (nearly) zero. 
    
    However, I did not get to finish the analysis, 'cause I'm currently in
    Germany (damn, they switch around the z and y!), and will be for the
    rest of the week, with only a telnet connection from an Micros**t
    Windoze machine. I thought I should let you know. 
    
    With respect to figures 5 in BAN22. It's defently worth to try and see
    what happens in narrower bins, say  |Delta Vz| = 3 cm. Also, I#d like
    to remind you, that for FFS analysis, one has to accept a wider range
    in primary verticies to get enough statistics.
    
    These are things I'll look into when I get back home and can open a
    proper X connection using a proper OS, etc. 
    
    Yours, 
    
    Christian  -----------------------------------------------------------
    Holm Christensen                             Phone:  (+45) 35 35 96 91 
      Sankt Hansgade 23, 1. th.                  Office: (+45) 353  25 305 
      DK-2200 Copenhagen N                       Web:    www.nbi.dk/~cholm    
      Denmark                                    Email:       cholm@nbi.dk
    



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