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To do lists

To do lists. Zhijun Liang. Signal efficiency. Completed Data driven estimation with background subtraction. (Evgeny) Double check fragmentation photon uncertainty. (Zhijun) Cross check acceptance and correction factor for electron channel (Tian)

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To do lists

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  1. To do lists Zhijun Liang

  2. Signal efficiency • Completed Data driven estimation with background subtraction. (Evgeny) • Double check fragmentation photon uncertainty. (Zhijun) • Cross check acceptance and correction factor for electron channel (Tian) • Signal acceptance and efficiency for different SM and ATGC samples in electron channel( Tian, Zhijun)

  3. ATGC part (Minghui, H,Liang) • Double check the numbers are consistent with cross section measurement part. • Include additional systematic due to ATGC dependence on acceptance and correction factors • MC coverage test.

  4. MET acceptance uncertainty • Follow WW analysis : https://cdsweb.cern.ch/record/1395559/files/ATL-COM-PHYS-2011-1522.pdf • Cell out term: quote 13.2% uncertainty on this term. • In-time pileup : quote 3% uncertainty • Out-of-time : 33% of signal MC need to be smeared • Mutag term

  5. Acceptance • Acceptance uncertainty due to scale • Generate signal MC using Sherpa with different PDF • Generate signal MC using Sherpa with different scale

  6. Theory • Double check the Wgammaparton level NLO cross section for pT>60GeV, N_jet=0 • Compare Alpgen(Sherpa) shape with MCFM shape • pT of photon • Mass of llg(or lvg) • Range 0~500GeV, bin size 5GeV

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