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User name hyde
Log entry time 12:41:13 on November 1,2010
Entry number 337983
keyword=Cerenkov vs PR
Run 8161
PR1+PR2
Add cut on Cerenkov timing abs(D.CerInT3-2300)<500
Clean electron sample in PR
T->Draw("L.prl1.asum_c+L.prl2.asum_c",cCleanTrk*"fEvtHdr.fEvtType==3","")
Now look at Cerenkov ADC, with PR sum >800
T->Draw("L.cer.asum_c",cCleanTrk*"800<(L.prl1.asum_c+L.prl2.asum_c)&&fEvtHdr.fEvtType==3","")
and add cut on D.CerInT3
The Cerenkov disc cut removes a significant number of events above
pedestal
FIGURE 1
FIGURE 2