08 Aug

August 2010 posts

2010.08.09 PyTune comparison with gamma candidates from dijets: Perugia0 vs. Pro-PT0

Related posts

Tunes compared

  • CDF Tune A
  • Perugia0
  • Pro-pT0

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. Monte-Carlo: emulated L2e-gamma triggered condition
  7. MC scaled to 3.164^pb based on Pythia luminosity (no fudge factors)

Figure 1a: Reconstructed photon candidate pt (L2e-gamma condition simulated in Monte-Carlo)

Figure 1b: Same as Fig. 1 on a linear scale and zoom into low pt

Figure 2: QCD Monte-Carlo yield to pp2006 data ratio

Figure 3: Prompt photon Monte-Carlo yield to pp2006 data ratio

Figure 4: Simulation yield vs. partonic pt (on a linear scale)

Figure 5: Simulation yield vs. partonic pt (log scale)

2010.08.10 Timestamps study for the simulation request

Summary for the gamma filtered simulation request

Generate Monte-Carlo events for
10 different timestamps and 10% of statistics each:

sdt20060516.152000 (GMT during run 7136022)
sdt20060518.073700 (GMT during run 7138010)
sdt20060520.142000 (GMT durign run 7140024)
sdt20060521.052000 (GMT during run 7141011)
sdt20060522.124500 (GMT during run 7142029)
sdt20060523.204400 (GMT during run 7143044)
sdt20060525.114000 (GMT during run 7145023)
sdt20060526.114000 (GMT during run 7146020)
sdt20060528.144500 (GMT during run 7148028)
sdt20060602.071500 (GMT during run 7153015)

Original list of timestamps

(from http://www.star.bnl.gov/HyperNews-star/protected/get/phana/481.html)

sdt20060512.043500 (GMT during run 7132005)
sdt20060513.064000 (GMT during run 7133011)
sdt20060514.090000 (GMT during run 7134015)
sdt20060516.152000 (GMT during run 7136022)
sdt20060518.073700 (GMT during run 7138010)
sdt20060520.142000 (GMT durign run 7140024)
sdt20060521.052000 (GMT during run 7141011)
sdt20060522.124500 (GMT during run 7142029)
sdt20060523.204400 (GMT during run 7143044)
sdt20060525.114000 (GMT during run 7145023)
sdt20060526.114000 (GMT during run 7146020)
sdt20060528.144500 (GMT during run 7148028)
sdt20060602.071500 (GMT during run 7153015)
sdt20060604.191200 (GMT during run 7155043)

Figure 1: Number of events from Run 6 golden runs
which fired L2e-gamma trigger (trigger id 137641 and 127641)
(using jet trees regenerated in new format by Wayne/Renee)


7132005: 0
7133011: 0
7134015: 10474
7136022: 171217
7138010: 221567
7140024: 62826
7141011: 174207
7142029: 187048
7143044: 189752
7145023: 142799
7146020: 133758
7148028: 181269
7153015: 145129
7155043: 89428

Figure 2: Fraction of events per time stamps