Binned C ZZ and systematics for ZZ->4l
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Binned C ZZ and systematics for ZZ->4l Nick Edwards Nick Edwards 1
description
Binned C ZZ and systematics for ZZ->4l. Nick Edwards. Predicted Yield, C ZZ. About 9% more predicted events compared to Moriond . From note. Binned Yield / C ZZ. -> Bin by bin k-factor applied. p T (Z1) Electron Systematics. p T (Z1) Muon Systematics. p T (Z1) C_ZZ. m ZZ - PowerPoint PPT Presentation
Transcript of Binned C ZZ and systematics for ZZ->4l
Nick Edwards 1
Binned CZZ and systematics for ZZ->4l
Nick Edwards
Nick Edwards 2
Predicted Yield, CZZ
From note
• About 9% more predicted events compared to Moriond.
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Binned Yield / CZZ
pT(Z1)Electron Systematics
pT(Z1)Muon Systematics pT(Z1)
C_ZZ
mZZElectron Systematics
mZZMuon Systematics mZZ
C_ZZ
-> Bin by bin k-factor applied
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Systematics Breakdown• Generally compatible with note.• Electron momentum smearing uncertainty now an order of magnitude
smaller, and decreases yields in both directions.• IP resolution seems slightly larger in the electron channel now.
New Systematics, ZZ selection only From Note
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Binned Systematics breakdown - Electrons• Electron smearing behaves very oddly.• Electron energy scale increases significantly in higher bins.
Compensated by drop in ID efficiency uncertainty
4e
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Binned Systematics breakdown - Muons• Again, smearing behaves quite oddly.
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Binned Systematics breakdown• Electron smearing behaves very oddly.• Electron energy scale increases significantly in higher bins.
Compensated by drop in ID efficiency uncertainty
