...
Name | Purpose | Gamma Efficiency | Bkg Efficiency | Cut | ||
---|---|---|---|---|---|---|
BasicTileCut | Reject events with track pointing at struck tile. | 94.2% | 6.18% |
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RibbonCut | Reject events with track pointing at struck ribbon. | 93% | 5.85% |
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TotalTileEnergyCut | Reject events with excess ACD total energy. | 88.1% | 2.08% |
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CornerCut | Reject events in the corner gap of the ACD. | 86.9% | 2.06% |
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TileEdgeCut | Reject events at tile edges with decreased signal. | 86.9% | 2.06% |
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VetoTileCut | Reject events with ... | 86.6% | 1.71% |
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Pass 8 Performance
Generating merit files off of the GlastRelease-HEAD1.1365 version (which came shortly after GlastRelease-v19r3p4), I started by looking at the effect of the Pass7 ACD cuts. Here the prefilters could have changed (since track finding etc. has changed). Using the same cut definitions, I find fairly similar results with slightly worse background rejection.
Prefilter | Gamma Efficiency | Bkg Efficiency |
---|---|---|
IrrFilter | 0% | 12% |
TkrCalCore | 6% | 48% |
AcdEngFilter | 0% | 2.4% |
Total | 6% | 1.6% |
Name | Gamma Efficiency | Bkg Efficiency |
---|---|---|
BasicTileCut | 94.2% | 11% |
RibbonCut | 93.3% | 10.6% |
TotalTileEnergyCut | 87.1% |
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CornerCut | 86.1% | 2.47% |
TileEdgeCut | 86.1% | 2.46% |
VetoTileCut | 85.7% | 2.01% |
Next, I look at implementing the AcdReconV2 cuts that Eric originally suggested. First defining some new AcdReconV2 variables:
Code Block |
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"Acd2VetoHit" : "sqrt(Acd2TkrVetoSigmaHit*Acd2TkrVetoSigmaHit + 1.5*Tkr1SSDVeto*Tkr1SSDVeto)",
"Acd2VetoHit1" : "sqrt(Acd2Tkr1VetoSigmaHit*Acd2Tkr1VetoSigmaHit + 1.5*Tkr1SSDVeto*Tkr1SSDVeto)",
"Acd2VetoGap1" : "sqrt(Acd2Tkr1VetoSigmaGap*Acd2Tkr1VetoSigmaGap + 1.5*Tkr1SSDVeto*Tkr1SSDVeto)",
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Applying the same prefilters, here are the cuts and their efficiencies.
Name | Purpose | Gamma Efficiency | Bkg Efficiency | Cut | ||
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VetoHit1Cut |
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TotalTileEnergyCut |
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VetoGap1Cut |
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VetoHitCut |
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