2010.06.18 L2e-gamma trigger effect: Py-CDF-Tune-A, Py-Perugia0, and pp2006 data comparison

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Data samples and colour coding

  1. black circles: pp2006 data
  2. open green: MC-QCD-TuneA, partonic pt 4-35
  3. solid green:  MC-QCD-Perugia0, partonic pt 4-35
  4. open red MC-prompt-photon-TuneA, partonic pt 3-35
  5. solid red MC-prompt-photon-Perugia0, partonic pt 3-35

Event selection

  1. di-jets from the cone jet-finder algorithm
  2. photon and jet are opposite in phi:
       cos (phi_gamma-phi_jet) < -0.8
  3. pt away side jet > 5GeV
  4. detector eta of the away side jet: |eta_jet_det| < 0.8
  5. data: L2e-gamma triggered events
  6. No trigger emulation in Monte-Carlo yet
  7. MC scaled to 3.164^pb based on Pythia luminosity (no fudge factors)

Figure 1: Reconstructed photon candidate pt, pt_gamma (no cut on pt_gamma, pt_jet > 5GeV)

Figure 2: Same as Fig. 1 with L2e-gamma condition simulated in Monte-Carlo

Figure 3: Same as Fig. 1, added distribution for photon pt from geant record (prompt photon MC only)

Figure 4: raw jet pt from jet trees: QCD pt=6-9
upper plot: mit0043 M. Betancourt simulations (MIT Simulation Productions)
bottom plot: new filtered MC

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