Preparation for W-production in December 17, 2009

 A single daq file from every run used for pp500 W analysis was produced with the chain:

"pp2009c ITTF VFPPVnoCTB BEmcChkStat beamLine Corr4 OSpaceZ2 OGridLeak3D -dstout -evout"

library SL09g,  BFC production date 12-17-2009, stats=1/7 of run 9 data, after Gene announced new GL &SC, and beam line were uploaded to DB.

Section A)  Chi2/dof for  global tracks

Long global tracks w pt>1 GeV were sampled. 

Fig 1. TOP: # of used tracks per run. run index on the X-axis - details in attachment A)
MIDDLE: Mean chi2/dof. Greay dashed lines marks Y=1.0 
BOTTOM: Y=chi2/dof vs. X=run index. Greay dashed lines marks Y=1.0 . Solid histogram marks mean chi2/dof.

Section B)  selected plots from  Walgo 

Selected plots from W-algo. I used private set of BTOW gains generated by Matt on Dec 16 (not yet available in DB). 

Fig 2. Jacobian peak (1/7 of data) 

Section C)    Comparison of SC GL reference plots

Fig 3. TPC : Left: Q/PT for e+, e- passing all W-cuts. Right: eta-phi uniformity for global tracks with  PT>1 GeV and some hit QA

Fig 3.1 TPC   Q/PT for e+, e- , pilot production (December 17), Left=primary PT, right=global PT.

The difference in mean Q/PT due to added beam line is much smaller than the effect due to new SC & GL seen in fig 3.2(a)  

Fig 3.2  TPC   Q/PT for e+, e- , pilot production (December 3), Left=primary PT, right=global PT.

FYI different BTOW calibrations are used in both data passes.

Fig 3.3 TPC   Q/PT for e+, e- , pilot production+SL09b  (August, 2009), Left=primary PT, right=global PT. 

Here difference in mean Q/PT between prim & global is significant.

Fig 3.4 TPC   Q/PT for e+, e- for ET in [30,60] GeV. Neve, mean , rms computed separately for Q+ & Q-.