• Dielectron decay of Z(Version1, 200pb^-1)

    • Eta dependance of Z_NOTRACK trigger efficiency(blue:30 Et cut, red:25 Et cut)
    • Et distribution of each topology in Z->ee MC
    • Missing Et distribution in background selection
      • (1st line:central leg from CC, 2nd line:central leg from CP, 3rd line:plug leg from CP)
    • Background disgribution before and after subtracting MC events
    • Et dependance of Z_NOTRACK trigger efficiency
    • Inefficient event1 of Z_NOTRACK, Inefficient event2 of Z_NOTRACK, Inefficient event3 of Z_NOTRACK
    • Rapidity distribution of the positive and negative rapidity
    • The CDF-note for this analysis

    • Trigger requirement
      • ELECTRON_CENTRAL_18 for Z(CC) and Z(CP)
      • PLUG_ELECTRON_20 for Z(PP)
      • Z_NOTRACK will be used for the whole topology

    • good run list v7 used

    • 66 < Mass < 116 mass window used

    • Tight central electron selection
      • Region = 0
      • EmEt[i] > 25
      • Fiducial = 1
      • Abs(TrkZ0) < 60
      • Hadem < 0.055+0.00045*En
      • Iso4 < 4
      • LshrTrk < 0.2
      • StripChi2 < 10
      • Abs(DeltaZ) < 3.0
      • -3.0 < Charge*DeltaX < 1.5
      • TrkAxSeg > 3 <- added in Version2
      • TrkStSeg > 2 <- added in Version2
      • EmEt <= 100 : electron_EP < 2.0 , TrkPt > 10
      • EmEt > 100 : TrkPt > 25

    • Loose central electron selection
      • Region = 0
      • EmEt[i] > 25
      • Fiducial = 1
      • Abs(TrkZ0) < 60
      • Hadem < 0.055+0.00045*En
      • Iso4 < 4
      • TrkAxSeg > 3 <- added in Version2
      • TrkStSeg > 2 <- added in Version2
      • EmEt <= 100 : TrkPt > 10
      • EmEt > 100 : TrkPt > 25

    • plug electron selection
      • Region = 0
      • EmEt[i] > 25(for Z(PP)), 20(for Z(CP))
      • 1.2 < Pes2dEta < 2.8
      • Abs(TrkZ0) < 60
      • Hadem < 0.05
      • Iso4 < 4
      • Pem3x3Chisq < 10
      • Pes2dby9U > 0.65 <- added in Version2
      • Pes2dby9V > 0.65 <- added in Version2
      • For phoenix track : PhxMatch = 1, PhxTrkSiHits > 3, Abs(PhxTrkZ0) < 60

  • Dielectron decay of Z(Version2, 350pb^-1)

      • Dataset
        • TopNtuple 5.3.3_nt version used
        • Z_NOTRACK trigger path used
        • Good run list v7
        • Integrated Luminosity : 363.9pb^-1 without sil, 333.7pb^-1 with sil
        • MC sample : ztop7i (3M events)
        • 66 < Mass of dielectron < 116
      • Mass distribution(CC,CP,PP)
        • CC: mean=90.89, width=2.45, # of event = 9337
        • CP: mean=90.70, width=2.74, # of event = 13453
        • PP: mean=90.39, width=2.83, # of event = 5529
      • Rapidity distribution(blue:CC,pink:CP,red:PP)
      • Acceptance distribution(blue:CC,pink:CP,red:PP)
      • pnx track efficiency in rapidity
      • pnx track efficiency in Eta
      • Isolation of central electron from Z(CC) - QCD bkg
      • Isolation of central electron from Z(CP) - QCD bkg
      • Isolation of plug electron from Z(CP) - QCD bkg
      • Isolation of pnx electron from Z(PP) - QCD bkg
      • Isolation of plug electron from Z(PP) - QCD bkg
      • dsigma/dy distribution
      • Background rate for QCD
        • In Z(CC) : 0.007021 +- 0.000596
        • In Z(CP) : 0.013072 +- 0.000302(central),0.013072 +- 0.000302(plug)
        • In Z(PP) : 0.021884 +- 0.002318(pnx) ,0.022577 +- 0.002140(plug)
      • What to do
        • get the electron efficiency in eta and plug in the efficiency
        • get the trigger efficiency
        • systematic study

        • Checking cesz
          • CES Z position
          • calculated CES Z position(the smallest bin)
          • calculated CES Z position(bigger bin)
          • calculated CES Z position(the biggest bin)
          • Track CES Z position
          • Detector Eta
          • Detector Eta(the smallest bin)
          • Detector Eta
          • Detector Eta(the biggest bin)
          • CESZ position with different pt cut(30GeV)
          • CESZ position with rphi cut 0.7(inside, outside)