2007.06.28 Photons in Pythia
Pythia Simulations
Pythia Simulations
All partonic pT
The plots below show the distribution of clusters in the endcap calorimeter for different partonic pT ranges. 2000 events were generated for each pT range. A cluster is made up of a central high tower above 3 GeV in pT and its surounding 8 neighbors. The total cluster pT must exceed 4.5 GeV.
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pT=9-11 GeV
Below is the pT of direct and decay photons from the Pythia record. Note how the two subsets are well separated at a given partonic pT. Any contamination to the direct photon signal would have to come from higher partonic pT.
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Differences between Renee's and Manuel's Pythia records?
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Number of prompt photons per event from GEANT record
Pibero Djawotho Last updated Fri Jun 8 16:08:27 EDT 2007
a_LL
Partonic aLL
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Pibero Djawotho Last updated Sat Jun 30 20:14:21 EDT 2007
gamma-jet kinematics
gamma-jet kinematics
Clusters without parent track
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Pibero Djawotho Last updated Thu Jun 28 04:43:57 EDT 2007
gamma/X separation by energy
gamma/X separation by energy
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Pibero Djawotho Last updated Wed Jul 11 11:10:26 EDT 2007
gamma/X separation by energy with pT weights
gamma/X separation by energy with pT weights
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Pibero Djawotho Last updated Thu Jul 12 00:28:35 EDT 2007
gamma/X separation by energy with pT weights and normalized by number of events
gamma/X separation by energy with pT weights and normalized by number of events
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Pibero Djawotho Last updated Wed Jul 18 14:55:08 EDT 2007
gamma/pi0 separation efficiency and rejection at pT=5-7 GeV
gamma/pi0 separation efficiency and rejection at pT=5-7 GeV
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Pibero Djawotho Last updated Wed Jul 4 17:45:26 EDT 2007
gamma/pi0 separation efficiency and rejection at pT=9-11 GeV
gamma/pi0 separation efficiency and rejection at pT=9-11 GeV
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Pibero Djawotho Last updated Wed Jul 4 13:23:41 EDT 2007
gamma/pi0 separation efficiency and rejection at pT=9-11 GeV
gamma/pi0 separation efficiency and rejection at pT=9-11 GeV
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Pibero Djawotho Last updated Wed Jul 4 13:23:41 EDT 2007