[G12] pass1 cooking

[Gagik Gavalian]

Dear All,

As I mentioned at the meeting I have some concerns about the pass1 
cooking, at this point it's a concern so it will be nice if someone 
could double check this !
So, I selected events from pass0 cooked files with final state "pi+pi- 
proton", and required
 missing mass of (pi+pi-proton) to be 0 < MM(pi+pi-p)<0.28, since I 
preskimmed this sample there is an implicit cut on invariant mass of 
pi+pi-, and it is, 0.44<M(pi+pi-)<0.54, and when I plot the missing mass 
of proton with above described cuts from pass 0 I get a nice peak for omega.
I selected omega events (shown on figure pass0_pipip.pdf, see 
attachment), the event numbers are in the attachment (eventsOmega.evt) 
and all the events are from two files run_57276.A40 and run_57276.A43.

Then
I printed out the content of EVNT bank and PART bank (it's called GSIM 
in the printout, it's really the content of PART(1) bank) for both pass0 
and pass1 (though pass0 does not have PART(1) bank in the skim so it's 
printout is empty). Though I'm cooking those same files now using 
calibration constants for pass0, I'll probably have full info on it then.

But, meanwhile, I also run my analysis code on the same files from pass 
one cooking,  and the result is in the attachment (file: pass1_pipip.pdf).

I'm now a little concerned that it might be due to my analysis code that 
I miss those omega events in the pass1, could someone please check with 
their own analysis code the files from pass one for omega events.
Here are the details:
The files are located at Jlab:
/w/hallb/clasg12/gavalian/g12Pass1Skimmed

and it's the complete set of skimmed files (1 through 5 includes other), 
the plot pass1_pipip.pdf, is a selection of events
proton pi+ pi- where:

0.44 < M(pi+pi-) <0.54
and
0.<MM(p pi+pi-) <0.28

and the missing mass of proton is plotted !

So the figure pass0_pipip.pdf is the same thing from pass0 from exact 
same files !

Gagik.

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