Extraction of SMD shower-shape information using conversion method

1. Electrum run list
2. Isolation cut ET/ET(0.3) > 0.90
3. CPV w/in R<0.3
4. Analyzing cut Epre2>0 w/in R<0.3
 
Figure 1 -- pT distribution, evolution with cuts.

Figure 2 -- SMD shower shape, evolution with cuts.  We plot the number of MIPs detected in an SMD strip versus the difference between the strip ID and the mean fit position in the SMD for the photon candidate using the default gamma maker function. 

 

Figure 3 -- Fit to the extracted photon yield using εgamma = 0.56 and εbg = 0.94.  No hadronic correction made.

n.b. I'm not certain of the normalization here... something looks screwy.