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Fake Jet Rejection: Sum Jt

Fake Jet Rejection: Sum Jt. The quantity: Calculated for AvgCellBkgrSubtr jets. Duplicate jets removed at the beginning. “Data” sets Hijing Hardcut b=2 Maximum Hijing particle within R = 0.4 < 30 GeV Total Hijing particle pt (pt > 2.5 GeV) < 30 GeV

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Fake Jet Rejection: Sum Jt

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  1. Fake Jet Rejection: Sum Jt • The quantity: • Calculated for AvgCellBkgrSubtr jets. • Duplicate jets removed at the beginning. • “Data” sets • Hijing Hardcut b=2 • Maximum Hijing particle within R = 0.4 < 30 GeV • Total Hijing particle pt (pt > 2.5 GeV) < 30 GeV • Pythia dijet events merged with Hijing b=2 hardcut • J2, J3, and J4 • All plots update from 1 week ago • Re-reconstructed, re-analyzed. Cole -- Fake Jet Rejection w/ Sum Jt

  2. SumJt vs Jet Et: Background • Purple points, line show profile and linear fit. Cole -- Fake Jet Rejection w/ Sum Jt

  3. SumJt corrected vs Jet Et: Background • Subtracted off linear fit from previous slide Cole -- Fake Jet Rejection w/ Sum Jt

  4. SumJt corrected: Background • Summed over all jet Et (background) Cole -- Fake Jet Rejection w/ Sum Jt

  5. Background Rejection “Efficiency” • Good rejection at lower Et, decreasing with Et Cole -- Fake Jet Rejection w/ Sum Jt

  6. J2, J3, J4 Combined Jet Efficiency Cole -- Fake Jet Rejection w/ Sum Jt

  7. Fake Rate After Rejection Cole -- Fake Jet Rejection w/ Sum Jt

  8. Rate Comparison w/True Jets Cole -- Fake Jet Rejection w/ Sum Jt

  9. Merged, Real (found) Jets Cole -- Fake Jet Rejection w/ Sum Jt

  10. Merged Truth Jets Cole -- Fake Jet Rejection w/ Sum Jt

  11. Truth vs Found Comparison Truth Reconstructed Cole -- Fake Jet Rejection w/ Sum Jt

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