2010.02.12 Final Pythia and BFC EEMC-gamma-filter paramter settings
Pythia generated processes
| Prompt photons (gamma-jets) |
2->2 QCD |
| id |
Process |
id |
Process |
| 14 |
f + fbar -> g + gamma |
11 |
f + f' -> f + f' (QCD) |
| 18 |
f + fbar -> gamma + gamma |
12 |
f + fbar -> f' + fbar' |
| 29 |
f + g -> f + gamma |
13 |
f + fbar -> g + g |
| 114 |
g + g -> gamma + gamma |
28 |
f + g -> f + g |
| 115 |
g + g -> g + gamma |
53 |
g + g -> f + fbar |
| |
|
68 |
g + g -> g + g |
Number of generated events per parton pt bin
| |
Number of generated events
(100events/job) |
| Parton pt range (GeV) |
2-3 |
3-4 |
4-6 |
6-9 |
9-15 |
15-25 |
25-35 |
| gamma-jets |
50K |
50K |
50K |
50K |
50K |
50K |
50K |
| 2->2 QCD processes |
100K |
100K |
50K |
50K |
50K |
50K |
50K |
Pythia Filter configuration
StRoot/StMCFilter/StEemcGammaFilter.cxx
StRoot/StMCFilter/StEemcGammaFilter.h
| Filter parameter |
Value |
Notes |
| mConeRadius |
0.22 |
|
| mSeedThreshold |
2.6 |
Cluster seed energy threshold (GeV) |
| mClusterThreshold |
3.6 |
Cluster Et threshold (GeV) |
| mEtaLow |
0.95 |
EEMC acceptance |
| mEtaHigh |
2.1 |
EEMC acceptance |
| mMaxVertex |
120.0 |
Vertex z cut (cm) |
| mCalDepth |
279.5 |
EEMC SMD depth (cm) |
| mMinPartEnergy |
1e-05 |
Ignore track with minim energy (GeV) |
| mHadronScale |
0.4 |
Downscale factor for hadron energy |
| mFilterMode |
0 / 1 |
0=Accept all events; 1=reject events |
BFC Filter configuration
StRoot/StFilterMaker/StEemcGammaFilterMaker.cxx
StRoot/StFilterMaker/StEemcGammaFilterMaker.h
| Filter parameter |
Value |
Notes |
| mSeedEnergyThreshold |
3.4 |
Cluter seed energy threshold (GeV) |
| mClusterEtThreshold |
4.5 |
Cluster Et threshold (GeV) |
| mEemcSamplingFraction |
0.05 |
Assume 5% sampling fraction for EEMC |
| mMaxVertex |
120.0 |
Vertex z cut (cm) |
| mFilterMode |
0 / 1 |
0=Accept all events; 1=reject events |
GammaMaker configuration
| Filter parameter |
Value |
Notes |
| ConeRadius |
0.7 |
|
| ClusterEtThreshold |
5.5 |
(GeV) |
| SeedEnergyThreshold |
4.2 |
(GeV) |
| ClusterEnergyThreshold |
5.5 |
(GeV) |
EEMC SlowSimulator configuration
(for a moment private version) of StEEmcSlowMaker.cxx
with modified setTowerGainSpread(Float_t s, Float_t mTowerGainMean)
| Filter parameter |
Value |
Notes |
| mTowerGainMean |
1.05 |
Overall +5% gain shift |
| GainSpread |
0 |
No gain spread |
GSTAR/Pythia options
- detp geometry y2006h
- Calorimeter cut for electromagnetic processes: emc_10keV
- call pytune(100): PYTUNE v1.015; CDF Tune A
or
call pytune(320): PYTUNE Perugia; Perugia 0 tune