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victor-gonzalez merged 1 commit into from
Jun 5, 2025
Merged

[PWGCF] add MC process #11482

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143 changes: 115 additions & 28 deletions PWGCF/Flow/Tasks/flowTask.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -113,6 +113,16 @@ struct FlowTask {

Filter collisionFilter = (nabs(aod::collision::posZ) < cfgCutVertex) && (aod::cent::centFT0C > cfgCentFT0CMin) && (aod::cent::centFT0C < cfgCentFT0CMax);
Filter trackFilter = ((requireGlobalTrackInFilter()) || (aod::track::isGlobalTrackSDD == (uint8_t) true)) && (nabs(aod::track::eta) < cfgCutEta) && (aod::track::pt > cfgCutPtMin) && (aod::track::pt < cfgCutPtMax) && (aod::track::tpcChi2NCl < cfgCutChi2prTPCcls) && (nabs(aod::track::dcaZ) < cfgCutDCAz);
using FilteredCollisions = soa::Filtered<soa::Join<aod::Collisions, aod::EvSels, aod::CentFT0Cs, aod::CentFT0CVariant1s, aod::CentFT0Ms, aod::CentFV0As, aod::Mults>>;
using FilteredTracks = soa::Filtered<soa::Join<aod::Tracks, aod::TrackSelection, aod::TracksExtra, aod::TracksDCA>>;
// Filter for MCcollisions
Filter mccollisionFilter = nabs(aod::mccollision::posZ) < cfgCutVertex;
using FilteredMcCollisions = soa::Filtered<aod::McCollisions>;
// Filter for MCParticle
Filter particleFilter = (nabs(aod::mcparticle::eta) < cfgCutEta) && (aod::mcparticle::pt > cfgCutPtMin) && (aod::mcparticle::pt < cfgCutPtMax);
using FilteredMcParticles = soa::Filtered<aod::McParticles>;

using FilteredSmallGroupMcCollisions = soa::SmallGroups<soa::Join<aod::McCollisionLabels, aod::Collisions, aod::EvSel, aod::CentFT0Cs, aod::CentFT0CVariant1s, aod::CentFT0Ms, aod::CentFV0As, aod::Mults>>;
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@victor-gonzalez victor-gonzalez Jun 5, 2025 •
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Be careful with the naming! So far, nothing is filtered in here, right?

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@Luzhiyongg Luzhiyongg Jun 6, 2025

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Hi Victor, I may make a mistake, but doesn't SmallGroups always include soa::Filtered?

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@victor-gonzalez victor-gonzalez Jun 6, 2025

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Hi Victor, I may make a mistake, but doesn't SmallGroups always include soa::Filtered?

Well, if they are not on Filtered tables, they shouldn't


// Corrections
TH1D* mEfficiency = nullptr;
Expand All @@ -127,6 +137,7 @@ struct FlowTask {

// Define output
OutputObj<FlowContainer> fFC{FlowContainer("FlowContainer")};
OutputObj<FlowContainer> fFCgen{FlowContainer("FlowContainer_gen")};
OutputObj<GFWWeights> fWeights{GFWWeights("weights")};
HistogramRegistry registry{"registry"};

Expand All @@ -143,6 +154,10 @@ struct FlowTask {
// Count the total number of enum
kCount_CentEstimators
};
enum DataType {
kReco,
kGen
};
int mRunNumber{-1};
uint64_t mSOR{0};
double mMinSeconds{-1.};
Expand All @@ -157,9 +172,6 @@ struct FlowTask {
TF1* funcV3;
TF1* funcV4;

using AodCollisions = soa::Filtered<soa::Join<aod::Collisions, aod::EvSels, aod::CentFT0Cs, aod::CentFT0CVariant1s, aod::CentFT0Ms, aod::CentFV0As, aod::Mults>>;
using AodTracks = soa::Filtered<soa::Join<aod::Tracks, aod::TrackSelection, aod::TracksExtra, aod::TracksDCA>>;

// Track selection
TrackSelection myTrackSel;
TF1* fPhiCutLow = nullptr;
Expand Down Expand Up @@ -222,6 +234,11 @@ struct FlowTask {
registry.add("hMult", "Multiplicity distribution", {HistType::kTH1D, {{3000, 0.5, 3000.5}}});
std::string hCentTitle = "Centrality distribution, Estimator " + std::to_string(cfgCentEstimator);
registry.add("hCent", hCentTitle.c_str(), {HistType::kTH1D, {{90, 0, 90}}});
if (doprocessMCGen) {
registry.add("MCGen/MChVtxZ", "Vexter Z distribution", {HistType::kTH1D, {axisVertex}});
registry.add("MCGen/MChMult", "Multiplicity distribution", {HistType::kTH1D, {{3000, 0.5, 3000.5}}});
registry.add("MCGen/MChCent", hCentTitle.c_str(), {HistType::kTH1D, {{90, 0, 90}}});
}
if (!cfgUseSmallMemory) {
registry.add("BeforeSel8_globalTracks_centT0C", "before sel8;Centrality T0C;mulplicity global tracks", {HistType::kTH2D, {axisCentForQA, axisNch}});
registry.add("BeforeCut_globalTracks_centT0C", "before cut;Centrality T0C;mulplicity global tracks", {HistType::kTH2D, {axisCentForQA, axisNch}});
Expand Down Expand Up @@ -256,6 +273,11 @@ struct FlowTask {
registry.add("hDCAz", "DCAz after cuts; DCAz (cm); Pt", {HistType::kTH2D, {{200, -0.5, 0.5}, {200, 0, 5}}});
registry.add("hDCAxy", "DCAxy after cuts; DCAxy (cm); Pt", {HistType::kTH2D, {{200, -0.5, 0.5}, {200, 0, 5}}});
registry.add("hTrackCorrection2d", "Correlation table for number of tracks table; uncorrected track; corrected track", {HistType::kTH2D, {axisNch, axisNch}});
if (doprocessMCGen) {
registry.add("MCGen/MChPhi", "#phi distribution", {HistType::kTH1D, {axisPhi}});
registry.add("MCGen/MChEta", "#eta distribution", {HistType::kTH1D, {axisEta}});
registry.add("MCGen/MChPtRef", "p_{T} distribution after cut", {HistType::kTH1D, {axisPtHist}});
}

o2::framework::AxisSpec axis = axisPt;
int nPtBins = axis.binEdges.size() - 1;
Expand Down Expand Up @@ -327,6 +349,11 @@ struct FlowTask {
fFC->SetName("FlowContainer");
fFC->SetXAxis(fPtAxis);
fFC->Initialize(oba, axisIndependent, cfgNbootstrap);
if (doprocessMCGen) {
fFCgen->SetName("FlowContainer_gen");
fFCgen->SetXAxis(fPtAxis);
fFCgen->Initialize(oba, axisIndependent, cfgNbootstrap);
}
delete oba;

// eta region
Expand Down Expand Up @@ -471,6 +498,7 @@ struct FlowTask {
return;
}

template <DataType dt>
void fillFC(const GFW::CorrConfig& corrconf, const double& cent, const double& rndm)
{
double dnx, val;
Expand All @@ -479,17 +507,19 @@ struct FlowTask {
if (dnx == 0)
return;
val = fGFW->Calculate(corrconf, 0, kFALSE).real() / dnx;
if (std::fabs(val) < 1)
fFC->FillProfile(corrconf.Head.c_str(), cent, val, dnx, rndm);
if (std::fabs(val) < 1) {
(dt == kGen) ? fFCgen->FillProfile(corrconf.Head.c_str(), cent, val, dnx, rndm) : fFC->FillProfile(corrconf.Head.c_str(), cent, val, dnx, rndm);
}
return;
}
for (auto i = 1; i <= fPtAxis->GetNbins(); i++) {
dnx = fGFW->Calculate(corrconf, i - 1, kTRUE).real();
if (dnx == 0)
continue;
val = fGFW->Calculate(corrconf, i - 1, kFALSE).real() / dnx;
if (std::fabs(val) < 1)
fFC->FillProfile(Form("%s_pt_%i", corrconf.Head.c_str(), i), cent, val, dnx, rndm);
if (std::fabs(val) < 1) {
(dt == kGen) ? fFCgen->FillProfile(Form("%s_pt_%i", corrconf.Head.c_str(), i), cent, val, dnx, rndm) : fFC->FillProfile(Form("%s_pt_%i", corrconf.Head.c_str(), i), cent, val, dnx, rndm);
}
}
return;
}
Expand Down Expand Up @@ -610,7 +640,8 @@ struct FlowTask {
registry.fill(HIST("hEventCountSpecific"), 8.5);

// V0A T0A 5 sigma cut
if (cfgEvSelV0AT0ACut && (std::fabs(collision.multFV0A() - fT0AV0AMean->Eval(collision.multFT0A())) > 5 * fT0AV0ASigma->Eval(collision.multFT0A())))
float sigma = 5.0;
if (cfgEvSelV0AT0ACut && (std::fabs(collision.multFV0A() - fT0AV0AMean->Eval(collision.multFT0A())) > sigma * fT0AV0ASigma->Eval(collision.multFT0A())))
return 0;
if (cfgEvSelV0AT0ACut)
registry.fill(HIST("hEventCountSpecific"), 9.5);
Expand Down Expand Up @@ -641,7 +672,8 @@ struct FlowTask {
registry.fill(HIST("hEventCountTentative"), 7.5);
if (!((multNTracksPV < fMultPVCutLow->Eval(centrality)) || (multNTracksPV > fMultPVCutHigh->Eval(centrality)) || (multTrk < fMultCutLow->Eval(centrality)) || (multTrk > fMultCutHigh->Eval(centrality))))
registry.fill(HIST("hEventCountTentative"), 8.5);
if (!(std::fabs(collision.multFV0A() - fT0AV0AMean->Eval(collision.multFT0A())) > 5 * fT0AV0ASigma->Eval(collision.multFT0A())))
float sigma = 5.0;
if (!(std::fabs(collision.multFV0A() - fT0AV0AMean->Eval(collision.multFT0A())) > sigma * fT0AV0ASigma->Eval(collision.multFT0A())))
registry.fill(HIST("hEventCountTentative"), 9.5);
}

Expand Down Expand Up @@ -675,7 +707,30 @@ struct FlowTask {
gCurrentHadronicRate = gHadronicRate[mRunNumber];
}

void process(AodCollisions::iterator const& collision, aod::BCsWithTimestamps const&, AodTracks const& tracks)
template <typename TCollision>
float getCentrality(TCollision const& collision)
{
float cent;
switch (cfgCentEstimator) {
case kCentFT0C:
cent = collision.centFT0C();
break;
case kCentFT0CVariant1:
cent = collision.centFT0CVariant1();
break;
case kCentFT0M:
cent = collision.centFT0M();
break;
case kCentFV0A:
cent = collision.centFV0A();
break;
default:
cent = collision.centFT0C();
}
return cent;
}

void process(FilteredCollisions::iterator const& collision, aod::BCsWithTimestamps const&, FilteredTracks const& tracks)
{
registry.fill(HIST("hEventCount"), 0.5);
if (!cfgUseSmallMemory && tracks.size() >= 1) {
Expand Down Expand Up @@ -703,23 +758,8 @@ struct FlowTask {
registry.fill(HIST("BeforeCut_multV0A_multT0A"), collision.multFT0A(), collision.multFV0A());
registry.fill(HIST("BeforeCut_multT0C_centT0C"), collision.centFT0C(), collision.multFT0C());
}
float cent;
switch (cfgCentEstimator) {
case kCentFT0C:
cent = collision.centFT0C();
break;
case kCentFT0CVariant1:
cent = collision.centFT0CVariant1();
break;
case kCentFT0M:
cent = collision.centFT0M();
break;
case kCentFV0A:
cent = collision.centFV0A();
break;
default:
cent = collision.centFT0C();
}
float cent = getCentrality(collision);

if (cfgUseTentativeEventCounter)
eventCounterQA(collision, tracks.size(), cent);
if (cfgUseAdditionalEventCut && !eventSelected(collision, tracks.size(), cent))
Expand Down Expand Up @@ -844,9 +884,56 @@ struct FlowTask {

// Filling Flow Container
for (uint l_ind = 0; l_ind < corrconfigs.size(); l_ind++) {
fillFC(corrconfigs.at(l_ind), independent, lRandom);
fillFC<kReco>(corrconfigs.at(l_ind), independent, lRandom);
}
}

void processMCGen(FilteredMcCollisions::iterator const& mcCollision, FilteredSmallGroupMcCollisions const& collisions, FilteredMcParticles const& mcParticles)
{
if (collisions.size() != 1)
return;

float cent = -1.;
for (const auto& collision : collisions) {
cent = getCentrality(collision);
}

float lRandom = fRndm->Rndm();
float vtxz = mcCollision.posZ();
registry.fill(HIST("MCGen/MChVtxZ"), vtxz);
registry.fill(HIST("MCGen/MChMult"), mcParticles.size());
registry.fill(HIST("MCGen/MChCent"), cent);
float independent = cent;
if (cfgUseNch)
independent = static_cast<float>(mcParticles.size());

fGFW->Clear();

for (const auto& mcParticle : mcParticles) {
if (!mcParticle.isPhysicalPrimary())
continue;
bool withinPtPOI = (cfgCutPtPOIMin < mcParticle.pt()) && (mcParticle.pt() < cfgCutPtPOIMax); // within POI pT range
bool withinPtRef = (cfgCutPtRefMin < mcParticle.pt()) && (mcParticle.pt() < cfgCutPtRefMax); // within RF pT range

if (withinPtRef) {
registry.fill(HIST("MCGen/MChPhi"), mcParticle.phi());
registry.fill(HIST("MCGen/MChEta"), mcParticle.eta());
registry.fill(HIST("MCGen/MChPtRef"), mcParticle.pt());
}
if (withinPtRef)
fGFW->Fill(mcParticle.eta(), fPtAxis->FindBin(mcParticle.pt()) - 1, mcParticle.phi(), 1., 1);
if (withinPtPOI)
fGFW->Fill(mcParticle.eta(), fPtAxis->FindBin(mcParticle.pt()) - 1, mcParticle.phi(), 1., 2);
if (withinPtPOI && withinPtRef)
fGFW->Fill(mcParticle.eta(), fPtAxis->FindBin(mcParticle.pt()) - 1, mcParticle.phi(), 1., 4);
}

// Filling Flow Container
for (uint l_ind = 0; l_ind < corrconfigs.size(); l_ind++) {
fillFC<kGen>(corrconfigs.at(l_ind), independent, lRandom);
}
}
PROCESS_SWITCH(FlowTask, processMCGen, "Process analysis for MC generated events", false);
};

WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
Expand Down
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