Difference between revisions of "Good electron cuts"

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Melissa, stop slacking and put something on this page already!
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==Good Electron Cuts==
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The following cuts were applied to get an estimate of the number of good events per run in the left and right HRS:
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Plots of these cuts can be seen [http://hallaweb.jlab.org/halog/log/html/1112_archive/111219140307.html here]
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1. Number of tracks = 1
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* L.tr.n==1
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* R.tr.n==1
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2. Y-Target Tracking Variable
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* abs(L.tr.tg_y)<0.05
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* abs(R.tr.tg_y)<0.05
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3. Number of Clusters in each VDC = 1
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* L.vdc.u1.nclust==1
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* R.vdc.u1.nclust==1
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4. Cut on Golden Track dp
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* abs(L.gold.dp)<0.05
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* abs(R.gold.dp)<0.05
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5. Cut on Golden Track theta
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* abs(L.gold.th)<0.05
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* abs(R.gold.th)<0.05
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6. Cut on Golden Track phi
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* abs(L.gold.ph+0.03287)<0.05
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* abs(R.gold.ph-0.02709)<0.05
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7. Cut on Lead Glass Detectors
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* (L.prl1.asum_p+L.prl2.asum_p)<2100&&(L.prl1.asum_p+L.prl2.asum_p)>1100
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* (R.sh.asum_p+R.ps.asum_p)<4500&&(R.sh.asum_p+R.ps.asum_p)>3000
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8. Cut on Cherenkov Sum
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* L.cer.asum_p>250
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* R.cer.asum_p>250

Latest revision as of 16:50, 5 January 2012

Good Electron Cuts

The following cuts were applied to get an estimate of the number of good events per run in the left and right HRS:

Plots of these cuts can be seen here

1. Number of tracks = 1

  • L.tr.n==1
  • R.tr.n==1


2. Y-Target Tracking Variable

  • abs(L.tr.tg_y)<0.05
  • abs(R.tr.tg_y)<0.05


3. Number of Clusters in each VDC = 1

  • L.vdc.u1.nclust==1
  • R.vdc.u1.nclust==1


4. Cut on Golden Track dp

  • abs(L.gold.dp)<0.05
  • abs(R.gold.dp)<0.05


5. Cut on Golden Track theta

  • abs(L.gold.th)<0.05
  • abs(R.gold.th)<0.05


6. Cut on Golden Track phi

  • abs(L.gold.ph+0.03287)<0.05
  • abs(R.gold.ph-0.02709)<0.05


7. Cut on Lead Glass Detectors

  • (L.prl1.asum_p+L.prl2.asum_p)<2100&&(L.prl1.asum_p+L.prl2.asum_p)>1100
  • (R.sh.asum_p+R.ps.asum_p)<4500&&(R.sh.asum_p+R.ps.asum_p)>3000


8. Cut on Cherenkov Sum

  • L.cer.asum_p>250
  • R.cer.asum_p>250