See this post from Alice for QCD sample rates

QCD and gamma-jet data samples are described here (filter parameters are listed below)

Pythia filter configuration

StEemcGammaFilter:: running the TEST mode (accepting all events). Set mFilterMode=1 to actually reject events
StEemcGammaFilter:: mConeRadius 0.22 mSeedThreshold 2.6 mClusterThreshold 3.6 mEtaLow 0.95 mEtaHigh 2.1 mMaxVertex 120
StEemcGammaFilter:: mCalDepth 279.5 mMinPartEnergy 1e-05 mHadronScale 1 mFilterMode 0 mPrintLevel 1

BFC filter configuration

StChain:INFO - Init() : Using gamma filter on the EEMC
StChain:INFO - Init() : EEMC Sampling Fraction = 0.05
StChain:INFO - Init() : Seed energy threshold = 3.4 GeV
StChain:INFO - Init() : Cluster eT threshold = 4.5 GeV
StChain:INFO - Init() : Maximum vertex = +/- 120 cm
StChain:INFO - Init() : Running the TEST mode (accepting all events). Set mFilterMode=1 to actually reject events in BFC

StEEmcSlowMaker

BFC:INFO - setTowerGainSpread(): gain spread: 0; gain mean value: 1.1

Accept/Reject relative to the total number of Pythia generated events

Figure 1: Fraction of accepted events

Figure 2: False rejection (Y-axis scale is 10^-3)

Accept/Reject relative to the number of Pythia filter accepted events

Figure 3: Fraction of accepted events relative to Pythia filter accepted events

Figure 4: False rejection relative to Pythia filter accepted events