[Halld-physics] Solenoid Current Studies

[Curtis A. Meyer]

I have taken numbers from both Michael’s and Aristeidis’ studies and combined them in
an Excel spread sheet that can be obtained from:

https://www.dropbox.com/s/0p1iuhpnc4ialzu/GlueXCurrentStudies.xlsx

In this spreadsheet, I accounted for the omega-> pi+ pi- pi 0 (89%)  and the eta->gam gam (39.1%)
in obtaining the efficiencies. I also used Aristeidis’ (100,4) numbers, that may have been the wrong
choice???

I then computed a “Track Efficiency” from the number of candidates to the BDT versus the number of 
correct events thrown. In this I just counted the number of tracks and photons, so for the eta pi pi case,
this is 5, while for the omega pi pi case, it is 7. The number is clearly a bit lower for the omega case,
but not by a huge factor.

   Curtis
---------
Curtis A. Meyer			MCS Associate Dean for Faculty and Graduate Affairs
Wean:    (412) 268-2745	Professor of Physics
Doherty: (412) 268-3090	Carnegie Mellon University
Fax:         (412) 681-0648	Pittsburgh, PA 15213
curtis.meyer at cmu.edu	http://www.curtismeyer.com/