09 Sep
September 2010 posts
2010.09.08 First look at the official EEMC gamma filtered production
Related posts
Event selection
- Official EEMC gamma filtered Monte-Carlo with Pro-pT0 tune
- di-jets from the cone jet-finder algorithm
- photon and jet are opposite in phi:
cos (phi_gamma-phi_jet) < -0.8
- pt away side jet > 5GeV
- detector eta of the away side jet: |eta_jet_det| < 0.8
- data : L2e-gamma triggered events
- Monte-Carlo: emulated L2e-gamma triggered condition
- MC scaled to 3.164^pb based on Pythia luminosity (no fudge factors)
Figure 1: Reconstructed photon candidate pt (L2e-gamma condition simulated in Monte-Carlo)

Figure 2: Partonic pt

Figure 3: Thrown photon pt (from Geant record, prompt photon sample only)

2010.09.10 Data to MC comparison with official EEMC gamma filtered production
Related posts
Event selection
- Official EEMC gamma filtered Monte-Carlo with Pro-pT0 tune
- di-jets from the cone jet-finder algorithm
- photon and jet are opposite in phi:
cos (phi_gamma-phi_jet) < -0.8
- pt away side jet > 5GeV
- detector eta of the away side jet: |eta_jet_det| < 0.8
- data : L2e-gamma triggered events
- Monte-Carlo: emulated L2e-gamma triggered condition
- QCD Monte-Carlo scaled to the yield in the data (MC down scaled by a factor of 1.8)
- All plots with gamma pt >7GeV cut
Figure 1: Reconstructed photon candidate pt

Figure 2: Reconstructed away side jet pt

Figure 3: z vertex distribution

Figure 4: 3x3 tower cluster energy

Figure 5: 2x1 tower cluster energy

Figure 6: Reconstructed photon candidate (detector) rapidity

Figure 7: Reconstructed away side jet rapidity

2010.09.13 Data vs. official filtered MC: cluster energy ratios
Related posts
Event selection
- Official EEMC gamma filtered Monte-Carlo with Pro-pT0 tune
- di-jets from the cone jet-finder algorithm
- photon and jet are opposite in phi:
cos (phi_gamma-phi_jet) < -0.8
- pt away side jet > 5GeV
- detector eta of the away side jet: |eta_jet_det| < 0.8
- data : L2e-gamma triggered events
- Monte-Carlo: emulated L2e-gamma triggered condition
- QCD Monte-Carlo scaled to the yield in the data (MC down scaled by a factor of 1.8)
- All plots with gamma pt >7GeV and jet pt >5GeV cuts
Figure 1: Cluster energy ratio: 2x1/2x2

Figure 2: Cluster energy ratio: 2x1/3x3

Figure 3: Cluster energy ratio: 2x2/3x3

Figure 4: Cluster energy ratio: 2x1/E(R=0.7)

Figure 5: Cluster energy ratio: 2x2/E(R=0.7)

Figure 6: Cluster energy ratio: 3x3/E(R=0.7)

2010.09.23 Neutral energy jet shape comparison for various tunes
Related posts
Event selection
- Official EEMC gamma filtered Monte-Carlo with Pro-pT0 tune vs. Ilya's private production for Pro-pT0, Perugia0, and CDF Tune A
- di-jets from the cone jet-finder algorithm
- photon and jet are opposite in phi:
cos (phi_gamma-phi_jet) < -0.8
- pt away side jet > 5GeV
- detector eta of the away side jet: |eta_jet_det| < 0.8
- data : L2e-gamma triggered events
- Monte-Carlo: emulated L2e-gamma triggered condition
- QCD Monte-Carlo scaled to the yield in the data (All Monte-Carlo normalized to the total yield in the data)
- All plots with gamma pt >7GeV and jet pt >5GeV cuts
Figure 1: 3x3 tower cluster energy to jet R=0.7 energy ratio
Left: Official production (Pro-Pt0), Right: Pro-Pt0 (Ilya private production)

Figure 2: 3x3 tower cluster energy to jet R=0.7 energy ratio - Perugia0 (Ilya private production)

Figure 3: 3x3 tower cluster energy to jet R=0.7 energy ratio - CDF Tune A (Ilya private production)

Figure 4: 3x3 tower cluster with jet thresholds energy to jet R=0.7 energy ratio - Official production (Pro-Pt0)
