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[PWGLF] Add processGen function to have MC gen level info #11218

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Merged
abmodak merged 1 commit into from
May 16, 2025
Merged

[PWGLF] Add processGen function to have MC gen level info #11218

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34 changes: 34 additions & 0 deletions PWGLF/Tasks/GlobalEventProperties/heavyionMultiplicity.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -147,6 +147,7 @@ struct HeavyionMultiplicity {
ConfigurableAxis ptHistBin{"ptHistBin", {200, 0., 20.}, ""};
ConfigurableAxis centralityBinning{"centralityBinning", {VARIABLE_WIDTH, 0, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100}, ""};
ConfigurableAxis occupancyBin{"occupancyBin", {VARIABLE_WIDTH, 0, 500, 1000, 2000, 5000, 10000}, ""};
ConfigurableAxis centBinGen{"centBinGen", {VARIABLE_WIDTH, 0, 500, 1000, 2000, 5000, 10000}, ""};

Configurable<bool> isApplySameBunchPileup{"isApplySameBunchPileup", true, "Enable SameBunchPileup cut"};
Configurable<bool> isApplyGoodZvtxFT0vsPV{"isApplyGoodZvtxFT0vsPV", true, "Enable GoodZvtxFT0vsPV cut"};
Expand Down Expand Up @@ -174,6 +175,7 @@ struct HeavyionMultiplicity {
AxisSpec centAxis = {centralityBinning, "Centrality", "CentralityAxis"};
AxisSpec axisPt = {ptHistBin, "pT", "pTAxis"};
AxisSpec axisOccupancy = {occupancyBin, "occupancy", "OccupancyAxis"};
AxisSpec axisCentBinGen = {centBinGen, "GenCentrality", "CentGenAxis"};

histos.add("EventHist", "EventHist", kTH1D, {axisEvent}, false);
histos.add("VtxZHist", "VtxZHist", kTH1D, {axisVtxZ}, false);
Expand Down Expand Up @@ -252,6 +254,18 @@ struct HeavyionMultiplicity {
histos.add("hmcrecdndetapp", "hmcrecdndetapp", kTHnSparseD, {axisVtxZ, centAxis, axisEta, axisPhi, axisSpecies, axisTrackType}, false);
histos.add("hmcgendndetapp", "hmcgendndetapp", kTHnSparseD, {axisVtxZ, centAxis, axisEta, axisPhi, axisSpecies, axisGenPtVary}, false);
}

if (doprocessGen) {
histos.add("MultBarrelEta10_vs_FT0A", "MultBarrelEta10_vs_FT0A", kTH2F, {axisMult, axisFt0aMult}, true);
histos.add("MultBarrelEta10_vs_FT0C", "MultBarrelEta10_vs_FT0C", kTH2F, {axisMult, axisFt0cMult}, true);
histos.add("MultBarrelEta10", "MultBarrelEta10", kTH1F, {axisMult}, true);
histos.add("MultFT0A", "MultFT0A", kTH1F, {axisFt0aMult}, true);
histos.add("MultFT0C", "MultFT0C", kTH1F, {axisFt0cMult}, true);
histos.add("dndeta10_vs_FT0C", "dndeta10_vs_FT0C", kTH2F, {axisEta, axisCentBinGen}, true);
histos.add("dndeta10_vs_FT0A", "dndeta10_vs_FT0A", kTH2F, {axisEta, axisCentBinGen}, true);
histos.add("mult10_vs_FT0C", "mult10_vs_FT0C", kTH2F, {axisMult, axisCentBinGen}, true);
histos.add("mult10_vs_FT0A", "mult10_vs_FT0A", kTH2F, {axisMult, axisCentBinGen}, true);
}
}

template <typename CheckCol>
Expand Down Expand Up @@ -791,6 +805,26 @@ struct HeavyionMultiplicity {
} // collision loop
}
PROCESS_SWITCH(HeavyionMultiplicity, processppMonteCarlo, "process pp MC", false);

void processGen(soa::Join<aod::McCollisions, aod::MultsExtraMC>::iterator const& mccols, aod::McParticles const& GenParticles)
{
histos.fill(HIST("MultBarrelEta10_vs_FT0A"), mccols.multMCNParticlesEta10(), mccols.multMCFT0A());
histos.fill(HIST("MultBarrelEta10_vs_FT0C"), mccols.multMCNParticlesEta10(), mccols.multMCFT0C());
histos.fill(HIST("MultBarrelEta10"), mccols.multMCNParticlesEta10());
histos.fill(HIST("MultFT0A"), mccols.multMCFT0A());
histos.fill(HIST("MultFT0C"), mccols.multMCFT0C());
histos.fill(HIST("mult10_vs_FT0A"), mccols.multMCNParticlesEta10(), mccols.multMCFT0A());
histos.fill(HIST("mult10_vs_FT0C"), mccols.multMCNParticlesEta10(), mccols.multMCFT0C());

for (const auto& particle : GenParticles) {
if (!isGenTrackSelected(particle)) {
continue;
}
histos.fill(HIST("dndeta10_vs_FT0A"), particle.eta(), mccols.multMCFT0A());
histos.fill(HIST("dndeta10_vs_FT0C"), particle.eta(), mccols.multMCFT0C());
}
}
PROCESS_SWITCH(HeavyionMultiplicity, processGen, "process pure MC gen", false);
};

WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
Expand Down
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