[G12] vertex distribution

[Michael C. Kunkel]

Greetings,

I got my hands on PPipPim data to plot the MVRT information.
I have posted the plots of the r of MVRT and x vs. y of MVRT for the 
following topologies:

Pion; Missing Mass Proton Pi+ Pi- -> 0 (exclusive)
          Effective Mass Pi+ Pi- ->Omega

Lepton: Missing Mass Proton e+ e-  < Pi0
              Missing Mass Proton e+ e- gamma -> 0 (exclusive)
              Effective Mass e+ e- gamma ->Pi0

Plot can be found at
https://clasweb.jlab.org/rungroups/g7/wiki/index.php/Reconstruction_study
for March 18, 2013

Before anyone cries "bug", let me assure everyone that the manner in 
which the MVRT data is collected for the pions is the same as for 
leptons, i.e. a clasEvent function.

 From what I deduce, it appears that either exclusive Pi0 production can 
happen outside of the target (cough cough), or for some reason when the 
particle is a lepton, we have resolution problems. Neither I can 
understand from looking at what creates the MVRT.

Thoughts and help would be appreciated greatly.

BR
MK


On 3/13/13 3:46 PM, Dennis Weygand wrote:
> Does anyone have  plots of vertex distributions (z, x vs y, r from 
> MVRT) for any topology?
> Dennis
>
> --
> Dennis Weygand
> weygand at jlab.org <mailto:weygand at jlab.org>
> (757) 269-5926 (office)
> (757) 870-4844 (cell)
>
>
>
>
>
>
> _______________________________________________
> G12 mailing list
> G12 at jlab.org
> https://mailman.jlab.org/mailman/listinfo/g12

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://mailman.jlab.org/pipermail/g12/attachments/20130318/d4c1415d/attachment.html