[G8b_run] Overlap Studies

[Volker Crede]

Hi all,

I have posted an updated version of last week's slides at:

     http://hadron.physics.fsu.edu/~crede/FILES/volker_g8b_v2.pdf

All slides with an * in the frame title are new. You may remember that Michael noticed last week that I had data points for the 1.5/1.7 PERP comparison at low eCounter values that he did not have. I think we figured out over the weekend why that is. While I applied a lower-energy cut of:

     energy  >  (eventEdge - Ecut),

I did not apply the upper energy cut (that he does) of:

     energy  <  eventEdge.

Interesting enough, this upper energy cut seems to remove some of the suggestive energy dependences we discussed last week. I may be able until Wednesday to repeat the analysis (with the 200 MeV cut) and also apply the upper energy limit.

Also, it looks like the 200 MeV cut does a good job, although the energy dependence here seems to be coming in at higher eCounter values compared to Mike's results, e.g. slides 8 and 9.

Best wishes for the moment

       Volker