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[PWGLF] Add impact parameter as a variable to correlate predictions against #11156

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Merged
skundu692 merged 2 commits into from
May 22, 2025
Merged

[PWGLF] Add impact parameter as a variable to correlate predictions against #11156

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83d0e41
[PWGLF] Add impact parameter as a variable to correlate preds against
ddobrigk May 11, 2025
5a6b4fa
Please consider the following formatting changes (#415)
alibuild May 11, 2025
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57 changes: 41 additions & 16 deletions PWGLF/Tasks/QC/mcParticlePrediction.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -63,7 +63,8 @@ struct Estimators {
static constexpr estID V0A = 16; // (Run2)
static constexpr estID V0C = 17; // (Run2)
static constexpr estID V0AC = 18; // (Run2 V0M)
static constexpr estID nEstimators = 19;
static constexpr estID ImpactParameter = 19; // (Run2 V0M)
static constexpr estID nEstimators = 20;

static constexpr const char* estimatorNames[nEstimators] = {"FT0A",
"FT0C",
Expand All @@ -83,7 +84,8 @@ struct Estimators {
"ETA08",
"V0A",
"V0C",
"V0AC"};
"V0AC",
"ImpactParameter"};
static std::vector<std::string> arrayNames()
{
static std::vector<std::string> names;
Expand Down Expand Up @@ -115,13 +117,15 @@ static const int defaultEstimators[Estimators::nEstimators][nParameters]{{0}, /
{0}, // ETA08
{0}, // V0A (Run2)
{0}, // V0C (Run2)
{0}}; // V0AC (Run2 V0M)
{0}, // V0AC (Run2 V0M)
{0}}; // ImpactParamter

// Histograms
std::array<std::shared_ptr<TH1>, Estimators::nEstimators> hestimators;
std::array<std::shared_ptr<TH2>, Estimators::nEstimators> hestimatorsVsITS;
std::array<std::shared_ptr<TH2>, Estimators::nEstimators> hestimatorsVsETA05;
std::array<std::shared_ptr<TH2>, Estimators::nEstimators> hestimatorsVsETA08;
std::array<std::shared_ptr<TH2>, Estimators::nEstimators> hestimatorsVsImpactParameter;
std::array<std::shared_ptr<TH2>, Estimators::nEstimators> hestimatorsRecoEvGenVsReco;
std::array<std::shared_ptr<TH2>, Estimators::nEstimators> hestimatorsRecoEvGenVsReco_BCMC;
std::array<std::shared_ptr<TH2>, Estimators::nEstimators> hestimatorsRecoEvGenVsRecoITS;
Expand All @@ -146,6 +150,7 @@ struct mcParticlePrediction {
ConfigurableAxis binsVxy{"binsVxy", {100, -10, 10}, "Binning of the production vertex (x and y) axis"};
ConfigurableAxis binsVz{"binsVz", {100, -10, 10}, "Binning of the production vertex (z) axis"};
ConfigurableAxis binsPt{"binsPt", {100, 0, 10}, "Binning of the Pt axis"};
ConfigurableAxis binsImpactParameter{"binsImpactParameter", {400, 0.0, 20.0}, "Binning of the impact parameter axis"};
ConfigurableAxis binsMultiplicity{"binsMultiplicity", {300, -0.5, 299.5}, "Binning of the Multiplicity axis"};
ConfigurableAxis binsMultiplicityReco{"binsMultiplicityReco", {1000, -0.5, -0.5 + 10000}, "Binning of the Multiplicity axis"};
Configurable<LabeledArray<int>> enabledSpecies{"enabledSpecies",
Expand All @@ -169,6 +174,7 @@ struct mcParticlePrediction {
Configurable<bool> enableVsITSHistograms{"enableVsITSHistograms", true, "Enables the correlation between ITS and other estimators"};
Configurable<bool> enableVsEta05Histograms{"enableVsEta05Histograms", true, "Enables the correlation between ETA05 and other estimators"};
Configurable<bool> enableVsEta08Histograms{"enableVsEta08Histograms", true, "Enables the correlation between ETA08 and other estimators"};
Configurable<bool> enableVsImpactParameterHistograms{"enableVsImpactParameterHistograms", true, "Enables the correlation between impact parameter and other estimators"};

Service<o2::framework::O2DatabasePDG> pdgDB;
o2::pwglf::ParticleCounter<o2::framework::O2DatabasePDG> mCounter;
Expand All @@ -182,6 +188,7 @@ struct mcParticlePrediction {
const AxisSpec axisVy{binsVxy, "Vy"};
const AxisSpec axisVz{binsVz, "Vz"};
const AxisSpec axisPt{binsPt, "#it{p}_{T} (GeV/#it{c})"};
const AxisSpec axisImpactParameter{binsImpactParameter, "Impact parameter (fm)"};
const AxisSpec axisMultiplicity{binsMultiplicity, "Multiplicity (undefined)"};
const AxisSpec axisMultiplicityReco{binsMultiplicityReco, "Multiplicity Reco. (undefined)"};
const AxisSpec axisMultiplicityRecoITS{100, 0, 100, "Multiplicity Reco. ITSIB"};
Expand Down Expand Up @@ -258,30 +265,38 @@ struct mcParticlePrediction {
if (!enabledEstimatorsArray[i]) {
continue;
}
AxisSpec axisThisEstimator = axisMultiplicity;
if (i == Estimators::ImpactParameter) {
axisThisEstimator = axisImpactParameter;
}
const char* name = Estimators::estimatorNames[i];
hestimators[i] = histos.add<TH1>(Form("multiplicity/%s", name), name, kTH1D, {axisMultiplicity});
hestimators[i] = histos.add<TH1>(Form("multiplicity/%s", name), name, kTH1D, {axisThisEstimator});
hestimators[i]->GetXaxis()->SetTitle(Form("Multiplicity %s", name));

auto make2DH = [&](const std::string& h, const char* ytitle) {
auto make2DH = [&](const std::string& h, const char* ytitle, bool isImpactParameterX = false, bool isImpactParameterY = false) {
auto hist = histos.add<TH2>(Form("%s%s", h.c_str(), name),
name,
kTH2D,
{axisMultiplicity, axisMultiplicity});
{isImpactParameterX ? axisImpactParameter : axisMultiplicity,
isImpactParameterY ? axisImpactParameter : axisMultiplicity});
hist->GetXaxis()->SetTitle(Form("Multiplicity %s", name));
hist->GetXaxis()->SetTitle(Form("Multiplicity %s", ytitle));
hist->GetYaxis()->SetTitle(Form("Multiplicity %s", ytitle));
return hist;
};
if (enableVsITSHistograms) {
hestimatorsVsITS[i] = make2DH("multiplicity/vsITS/", Estimators::estimatorNames[Estimators::ITSIB]);
hestimatorsVsITS[i] = make2DH("multiplicity/vsITS/", Estimators::estimatorNames[Estimators::ITSIB], (i == Estimators::ImpactParameter));
}
if (enableVsEta05Histograms) {
hestimatorsVsETA05[i] = make2DH("multiplicity/vsETA05/", Estimators::estimatorNames[Estimators::ETA05]);
hestimatorsVsETA05[i] = make2DH("multiplicity/vsETA05/", Estimators::estimatorNames[Estimators::ETA05], (i == Estimators::ImpactParameter));
}
if (enableVsEta08Histograms) {
hestimatorsVsETA08[i] = make2DH("multiplicity/vsETA08/", Estimators::estimatorNames[Estimators::ETA08]);
hestimatorsVsETA08[i] = make2DH("multiplicity/vsETA08/", Estimators::estimatorNames[Estimators::ETA08], (i == Estimators::ImpactParameter));
}
if (enableVsImpactParameterHistograms) {
hestimatorsVsImpactParameter[i] = make2DH("multiplicity/vsImpactParameter/", Estimators::estimatorNames[Estimators::ImpactParameter], (i == Estimators::ImpactParameter), true);
}

hvertexPosZ[i] = histos.add<TH2>(Form("multiplicity/posZ/%s", name), name, kTH2D, {{200, -20, 20, "pos Z"}, axisMultiplicity});
hvertexPosZ[i] = histos.add<TH2>(Form("multiplicity/posZ/%s", name), name, kTH2D, {{200, -20, 20, "pos Z"}, axisThisEstimator});
hvertexPosZ[i]->GetYaxis()->SetTitle(Form("Multiplicity %s", name));

if (!doprocessReco) { // Reco events
Expand Down Expand Up @@ -331,11 +346,15 @@ struct mcParticlePrediction {
if (!enabledEstimatorsArray[j]) {
continue;
}
AxisSpec axisThisEstimator = axisMultiplicity;
if (j == Estimators::ImpactParameter) {
axisThisEstimator = axisImpactParameter;
}
const char* name = Estimators::estimatorNames[j];
hpt[j][i] = histosPt.add<TH2>(Form("prediction/pt/%s/%s", name, PIDExtended::getName(i)), PIDExtended::getName(i), kTH2D, {axisPt, axisMultiplicity});
hpt[j][i] = histosPt.add<TH2>(Form("prediction/pt/%s/%s", name, PIDExtended::getName(i)), PIDExtended::getName(i), kTH2D, {axisPt, axisThisEstimator});
hpt[j][i]->GetYaxis()->SetTitle(Form("Multiplicity %s", name));

hyield[j][i] = histosYield.add<TH1>(Form("prediction/yield/%s/%s", name, PIDExtended::getName(i)), PIDExtended::getName(i), kTH1D, {axisMultiplicity});
hyield[j][i] = histosYield.add<TH1>(Form("prediction/yield/%s/%s", name, PIDExtended::getName(i)), PIDExtended::getName(i), kTH1D, {axisThisEstimator});
hyield[j][i]->GetYaxis()->SetTitle(Form("Multiplicity %s", name));
}
}
Expand All @@ -345,7 +364,7 @@ struct mcParticlePrediction {
histosYield.print();
}

std::array<float, Estimators::nEstimators> genMult(const auto& mcParticles)
std::array<float, Estimators::nEstimators> genMult(const auto& mcCollision, const auto& mcParticles)
{
std::array<float, Estimators::nEstimators> nMult;
if (enabledEstimatorsArray[Estimators::FT0A] || enabledEstimatorsArray[Estimators::FT0AC]) {
Expand Down Expand Up @@ -402,6 +421,9 @@ struct mcParticlePrediction {
nMult[Estimators::V0AC] = 0;
}
}
if (enabledEstimatorsArray[Estimators::ImpactParameter]) {
nMult[Estimators::ImpactParameter] = mcCollision.impactParameter();
}
return nMult;
}

Expand All @@ -419,7 +441,7 @@ struct mcParticlePrediction {
}
histos.fill(HIST("collisions/generated"), 2);

const std::array<float, Estimators::nEstimators>& nMult = genMult(mcParticles);
const std::array<float, Estimators::nEstimators>& nMult = genMult(mcCollision, mcParticles);

for (int i = 0; i < Estimators::nEstimators; i++) {
if (!enabledEstimatorsArray[i]) {
Expand All @@ -436,6 +458,9 @@ struct mcParticlePrediction {
if (enableVsEta08Histograms) {
hestimatorsVsETA08[i]->Fill(nMult[i], nMult[Estimators::ETA08]);
}
if (enableVsImpactParameterHistograms) {
hestimatorsVsImpactParameter[i]->Fill(nMult[i], nMult[Estimators::ImpactParameter]);
}
hvertexPosZ[i]->Fill(mcCollision.posZ(), nMult[i]);
}

Expand Down Expand Up @@ -611,7 +636,7 @@ struct mcParticlePrediction {
histos.fill(HIST("particles/FromCollVsFromCollBad"), particlesFromColl, particlesFromCollWrongBC);
histos.fill(HIST("particles/FromCollBadOverFromCollVsVsFromMCColl"), 1.f * particlesFromCollWrongBC / particlesFromColl, particlesInCollision.size());

const std::array<float, Estimators::nEstimators>& nMult = genMult(particlesInCollision);
const std::array<float, Estimators::nEstimators>& nMult = genMult(mcCollision, particlesInCollision);

float nMultReco[Estimators::nEstimators];
nMultReco[Estimators::FT0A] = collision.multFT0A();
Expand Down