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Merged
shouqiye merged 2 commits into from
Mar 2, 2026
+137 −1
Merged

[PWGCF] Added QA histograms #15204

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dbc326a
Added QA histograms
SwatiSaha-1997 Feb 28, 2026
451cdae
Added additional analysis histograms
SwatiSaha-1997 Mar 1, 2026
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138 changes: 137 additions & 1 deletion PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@
#include "ReconstructionDataFormats/Track.h"
#include <CCDB/BasicCCDBManager.h>

#include <TComplex.h>
#include <TDirectory.h>
#include <TF1.h>
#include <TFile.h>
Expand Down Expand Up @@ -133,9 +134,13 @@ struct V0ptHadPiKaProt {
Configurable<float> cfgPtCutTOF{"cfgPtCutTOF", 0.3f, "Minimum pt to use TOF N-sigma"};
Configurable<LabeledArray<float>> nSigmas{"nSigmas", {LongArrayFloat[0], 3, 6, {"TPC", "TOF", "ITS"}, {"pos_pi", "pos_ka", "pos_pr", "neg_pi", "neg_ka", "neg_pr"}}, "Labeled array for n-sigma values for TPC, TOF, ITS for pions, kaons, protons (positive and negative)"};
Configurable<bool> cfgUseRun3V2PID{"cfgUseRun3V2PID", true, "True if PID cuts to be used are similar to Run3 v2 PID analysis"};
Configurable<int> cfgNbinsV02pt{"cfgNbinsV02pt", 14, "No. of pT bins for v02(pT) analysis"};
Configurable<float> cfgCutPtMaxForV02{"cfgCutPtMaxForV02", 3.0f, "Max. pT for v02(pT)"};
Configurable<float> cfgCutEtaWindowB{"cfgCutEtaWindowB", 0.4f, "value of x in |eta|<x for window B"};

HistogramRegistry histos{"Histos", {}, OutputObjHandlingPolicy::AnalysisObject};
std::vector<std::vector<std::shared_ptr<TProfile2D>>> subSample;
std::vector<std::vector<std::shared_ptr<TProfile2D>>> subSampleV02;
TRandom3* funRndm = new TRandom3(0);

// Filter command***********
Expand Down Expand Up @@ -244,10 +249,23 @@ struct V0ptHadPiKaProt {
histos.add("Prof_Bone_prot", "", {HistType::kTProfile2D, {centAxis, noAxis}});
histos.add("Prof_Btwo_prot", "", {HistType::kTProfile2D, {centAxis, noAxis}});

// Analysis profile for v02(pT)
histos.add("Prof_XY", "", {HistType::kTProfile2D, {centAxis, noAxis}});
histos.add("Prof_XYZ_had", "", {HistType::kTProfile2D, {centAxis, ptAxis}});
histos.add("Prof_Z_had", "", {HistType::kTProfile2D, {centAxis, ptAxis}});
histos.add("Prof_XYZ_pi", "", {HistType::kTProfile2D, {centAxis, ptAxis}});
histos.add("Prof_Z_pi", "", {HistType::kTProfile2D, {centAxis, ptAxis}});
histos.add("Prof_XYZ_ka", "", {HistType::kTProfile2D, {centAxis, ptAxis}});
histos.add("Prof_Z_ka", "", {HistType::kTProfile2D, {centAxis, ptAxis}});
histos.add("Prof_XYZ_prot", "", {HistType::kTProfile2D, {centAxis, ptAxis}});
histos.add("Prof_Z_prot", "", {HistType::kTProfile2D, {centAxis, ptAxis}});

// initial array
subSample.resize(cfgNSubsample);
subSampleV02.resize(cfgNSubsample);
for (int i = 0; i < cfgNSubsample; i++) {
subSample[i].resize(20);
subSampleV02[i].resize(20);
}
for (int i = 0; i < cfgNSubsample; i++) {
subSample[i][0] = std::get<std::shared_ptr<TProfile2D>>(histos.add(Form("subSample_%d/Prof_A_had", i), "", {HistType::kTProfile2D, {centAxis, ptAxis}}));
Expand All @@ -273,6 +291,16 @@ struct V0ptHadPiKaProt {
subSample[i][17] = std::get<std::shared_ptr<TProfile2D>>(histos.add(Form("subSample_%d/Prof_D_prot", i), "", {HistType::kTProfile2D, {centAxis, noAxis}}));
subSample[i][18] = std::get<std::shared_ptr<TProfile2D>>(histos.add(Form("subSample_%d/Prof_Bone_prot", i), "", {HistType::kTProfile2D, {centAxis, noAxis}}));
subSample[i][19] = std::get<std::shared_ptr<TProfile2D>>(histos.add(Form("subSample_%d/Prof_Btwo_prot", i), "", {HistType::kTProfile2D, {centAxis, noAxis}}));

subSampleV02[i][0] = std::get<std::shared_ptr<TProfile2D>>(histos.add(Form("subSampleV02_%d/Prof_XY", i), "", {HistType::kTProfile2D, {centAxis, noAxis}}));
subSampleV02[i][1] = std::get<std::shared_ptr<TProfile2D>>(histos.add(Form("subSampleV02_%d/Prof_XYZ_had", i), "", {HistType::kTProfile2D, {centAxis, ptAxis}}));
subSampleV02[i][2] = std::get<std::shared_ptr<TProfile2D>>(histos.add(Form("subSampleV02_%d/Prof_Z_had", i), "", {HistType::kTProfile2D, {centAxis, ptAxis}}));
subSampleV02[i][3] = std::get<std::shared_ptr<TProfile2D>>(histos.add(Form("subSampleV02_%d/Prof_XYZ_pi", i), "", {HistType::kTProfile2D, {centAxis, ptAxis}}));
subSampleV02[i][4] = std::get<std::shared_ptr<TProfile2D>>(histos.add(Form("subSampleV02_%d/Prof_Z_pi", i), "", {HistType::kTProfile2D, {centAxis, ptAxis}}));
subSampleV02[i][5] = std::get<std::shared_ptr<TProfile2D>>(histos.add(Form("subSampleV02_%d/Prof_XYZ_ka", i), "", {HistType::kTProfile2D, {centAxis, ptAxis}}));
subSampleV02[i][6] = std::get<std::shared_ptr<TProfile2D>>(histos.add(Form("subSampleV02_%d/Prof_Z_ka", i), "", {HistType::kTProfile2D, {centAxis, ptAxis}}));
subSampleV02[i][1] = std::get<std::shared_ptr<TProfile2D>>(histos.add(Form("subSampleV02_%d/Prof_XYZ_prot", i), "", {HistType::kTProfile2D, {centAxis, ptAxis}}));
subSampleV02[i][2] = std::get<std::shared_ptr<TProfile2D>>(histos.add(Form("subSampleV02_%d/Prof_Z_prot", i), "", {HistType::kTProfile2D, {centAxis, ptAxis}}));
}
} // end init

Expand Down Expand Up @@ -482,7 +510,7 @@ struct V0ptHadPiKaProt {
histos.fill(HIST("Hist2D_globalTracks_PVTracks"), coll.multNTracksPV(), inputTracks.size());
histos.fill(HIST("Hist2D_cent_nch"), inputTracks.size(), cent);

// Analysis variables
// Analysis variables for v0(pT)
int nbinsHad = 20;
int nbinsPid = 18;
double binsarray[21] = {0.2, 0.4, 0.6, 0.8, 1.0, 1.2, 1.4, 1.6, 1.8, 2.0, 2.2, 2.4, 2.6, 2.8, 3.0, 3.5, 4.0, 5.0, 6.0, 8.0, 10.0};
Expand All @@ -498,6 +526,18 @@ struct V0ptHadPiKaProt {
double nSumEtaLeftKa = 0.0;
double nSumEtaLeftProt = 0.0;

// Analysis variables for v02(pT)
TH1D* fPtProfileHadInWinB = new TH1D("fPtProfileHadInWinB", "fPtProfileHadInWinB", 20, binsarray);
TH1D* fPtProfilePiInWinB = new TH1D("fPtProfilePiInWinB", "fPtProfilePiInWinB", 20, binsarray);
TH1D* fPtProfileKaInWinB = new TH1D("fPtProfileKaInWinB", "fPtProfileKaInWinB", 20, binsarray);
TH1D* fPtProfileProtInWinB = new TH1D("fPtProfileProtInWinB", "fPtProfileProtInWinB", 20, binsarray);
double nSumInWinB = 0.0; // for Z = f(pT) = n(pT)/N_B in window B

double nSumInWinA = 0.0; // for X (in window A) to calculate v2^2
double nSumInWinC = 0.0; // for Y (in window C) to calculate v2^2
TComplex vecQInWinA = TComplex(0., 0.);
TComplex vecQInWinC = TComplex(0., 0.);

for (const auto& track : inputTracks) { // Loop over tracks

if (!track.has_collision()) {
Expand All @@ -521,6 +561,7 @@ struct V0ptHadPiKaProt {

double trkPt = track.pt();
double trkEta = track.eta();
double trkPhi = track.phi();

// inclusive charged particles
if (track.sign() != 0) {
Expand All @@ -535,6 +576,29 @@ struct V0ptHadPiKaProt {
}
}

// fill subevent B for f(pT) in v02(pT)
if (track.sign() != 0 && trkPt < cfgCutPtMaxForV02) {
if (std::abs(trkEta) < cfgCutEtaWindowB) {
fPtProfileHadInWinB->Fill(trkPt);
nSumInWinB += 1.0;
}
}
double phiweight = 1.0;
// fill subevent C for v2^2 in v02(pT)
if (track.sign() != 0 && trkPt < cfgCutPtMaxForV02) {
if (cfgCutEtaWindowB < trkEta && trkEta < 0.8) {
vecQInWinC += phiweight * TComplex(TMath::Cos(2. * trkPhi), TMath::Sin(2. * trkPhi));
nSumInWinC += phiweight;
}
}
// fill subevent A for v2^2 in v02(pT)
if (track.sign() != 0 && trkPt < cfgCutPtMaxForV02) {
if (-0.8 < trkEta && trkEta < -1.0 * cfgCutEtaWindowB) {
vecQInWinA += phiweight * TComplex(TMath::Cos(2. * trkPhi), TMath::Sin(2. * trkPhi));
nSumInWinA += phiweight;
}
}

// PID QAs before selection
double nSigmaTpcPi = track.tpcNSigmaPi();
double nSigmaTpcKa = track.tpcNSigmaKa();
Expand Down Expand Up @@ -607,6 +671,21 @@ struct V0ptHadPiKaProt {
}
}

// fill subevent B for ***identified particles'*** f(pT) in v02(pT)
if (track.sign() != 0 && trkPt < cfgCutPtMaxForV02) {
if (std::abs(trkEta) < cfgCutEtaWindowB) {
if (isPion) {
fPtProfilePiInWinB->Fill(trkPt);
}
if (isKaon) {
fPtProfileKaInWinB->Fill(trkPt);
}
if (isProton && trkPt > cfgCutPtLowerProt) {
fPtProfileProtInWinB->Fill(trkPt);
}
}
}

} // End track loop

// selecting subsample and filling profiles
Expand Down Expand Up @@ -676,11 +755,68 @@ struct V0ptHadPiKaProt {
}
}

if (nSumInWinA > 4 && nSumInWinB > 4 && nSumInWinC > 4) {
double twoParCorr = (vecQInWinA * TComplex::Conjugate(vecQInWinC)).Re();
twoParCorr *= 1.0 / (nSumInWinA * nSumInWinC);
histos.get<TProfile2D>(HIST("Prof_XY"))->Fill(cent, 0.5, twoParCorr);

subSampleV02[sampleIndex][0]->Fill(cent, 0.5, twoParCorr);

// hadrons
for (int i = 0; i < cfgNbinsV02pt; i++) {
double threeParCorrHad = (vecQInWinA * TComplex::Conjugate(vecQInWinC) * fPtProfileHadInWinB->GetBinContent(i + 1)).Re();
threeParCorrHad *= 1.0 / (nSumInWinA * nSumInWinC * nSumInWinB);
histos.get<TProfile2D>(HIST("Prof_XYZ_had"))->Fill(cent, fPtProfileHadInWinB->GetBinCenter(i + 1), threeParCorrHad);
histos.get<TProfile2D>(HIST("Prof_Z_had"))->Fill(cent, fPtProfileHadInWinB->GetBinCenter(i + 1), (fPtProfileHadInWinB->GetBinContent(i + 1) / nSumInWinB));

subSampleV02[sampleIndex][1]->Fill(cent, fPtProfileHadInWinB->GetBinCenter(i + 1), threeParCorrHad);
subSampleV02[sampleIndex][2]->Fill(cent, fPtProfileHadInWinB->GetBinCenter(i + 1), (fPtProfileHadInWinB->GetBinContent(i + 1) / nSumInWinB));
}

// pions
for (int i = 0; i < cfgNbinsV02pt; i++) {
double threeParCorrPi = (vecQInWinA * TComplex::Conjugate(vecQInWinC) * fPtProfilePiInWinB->GetBinContent(i + 1)).Re();
threeParCorrPi *= 1.0 / (nSumInWinA * nSumInWinC * nSumInWinB);
histos.get<TProfile2D>(HIST("Prof_XYZ_pi"))->Fill(cent, fPtProfilePiInWinB->GetBinCenter(i + 1), threeParCorrPi);
histos.get<TProfile2D>(HIST("Prof_Z_pi"))->Fill(cent, fPtProfilePiInWinB->GetBinCenter(i + 1), (fPtProfilePiInWinB->GetBinContent(i + 1) / nSumInWinB));

subSampleV02[sampleIndex][1]->Fill(cent, fPtProfilePiInWinB->GetBinCenter(i + 1), threeParCorrPi);
subSampleV02[sampleIndex][2]->Fill(cent, fPtProfilePiInWinB->GetBinCenter(i + 1), (fPtProfilePiInWinB->GetBinContent(i + 1) / nSumInWinB));
}

// kaons
for (int i = 0; i < cfgNbinsV02pt; i++) {
double threeParCorrKa = (vecQInWinA * TComplex::Conjugate(vecQInWinC) * fPtProfileKaInWinB->GetBinContent(i + 1)).Re();
threeParCorrKa *= 1.0 / (nSumInWinA * nSumInWinC * nSumInWinB);
histos.get<TProfile2D>(HIST("Prof_XYZ_ka"))->Fill(cent, fPtProfileKaInWinB->GetBinCenter(i + 1), threeParCorrKa);
histos.get<TProfile2D>(HIST("Prof_Z_ka"))->Fill(cent, fPtProfileKaInWinB->GetBinCenter(i + 1), (fPtProfileKaInWinB->GetBinContent(i + 1) / nSumInWinB));

subSampleV02[sampleIndex][1]->Fill(cent, fPtProfileKaInWinB->GetBinCenter(i + 1), threeParCorrKa);
subSampleV02[sampleIndex][2]->Fill(cent, fPtProfileKaInWinB->GetBinCenter(i + 1), (fPtProfileKaInWinB->GetBinContent(i + 1) / nSumInWinB));
}

// protons
for (int i = 1; i < cfgNbinsV02pt; i++) {
double threeParCorrProt = (vecQInWinA * TComplex::Conjugate(vecQInWinC) * fPtProfileProtInWinB->GetBinContent(i + 1)).Re();
threeParCorrProt *= 1.0 / (nSumInWinA * nSumInWinC * nSumInWinB);
histos.get<TProfile2D>(HIST("Prof_XYZ_prot"))->Fill(cent, fPtProfileProtInWinB->GetBinCenter(i + 1), threeParCorrProt);
histos.get<TProfile2D>(HIST("Prof_Z_prot"))->Fill(cent, fPtProfileProtInWinB->GetBinCenter(i + 1), (fPtProfileProtInWinB->GetBinContent(i + 1) / nSumInWinB));

subSampleV02[sampleIndex][1]->Fill(cent, fPtProfileProtInWinB->GetBinCenter(i + 1), threeParCorrProt);
subSampleV02[sampleIndex][2]->Fill(cent, fPtProfileProtInWinB->GetBinCenter(i + 1), (fPtProfileProtInWinB->GetBinContent(i + 1) / nSumInWinB));
}
}

fPtProfileHad->Delete();
fPtProfilePi->Delete();
fPtProfileKa->Delete();
fPtProfileProt->Delete();

fPtProfileHadInWinB->Delete();
fPtProfilePiInWinB->Delete();
fPtProfileKaInWinB->Delete();
fPtProfileProtInWinB->Delete();

} // End process loop
};

Expand Down
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