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Merged
amatyja merged 2 commits into from
Aug 31, 2026
+70 −18
Merged

[PWGUD] Remove true tau info from MC tree #17675

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88cd7f5
Remove true tau info from MC tree
amatyja Aug 31, 2026
a77ced0
Added reconstruction for a given channel
amatyja Aug 31, 2026
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16 changes: 8 additions & 8 deletions PWGUD/DataModel/TauThreeProngEventTables.h
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Original file line number Diff line number Diff line change
Expand Up @@ -124,10 +124,10 @@ DECLARE_SOA_COLUMN(TrueChannel, trueChannel, int);
// DECLARE_SOA_COLUMN(TruePosX, truePosX, float);
// DECLARE_SOA_COLUMN(TruePosY, truePosY, float);
DECLARE_SOA_COLUMN(TruePosZ, truePosZ, float);
// truth tau particles // index 0: tau+ // index 1: tau -
DECLARE_SOA_COLUMN(TrueTauPx, trueTauPx, float[2]);
DECLARE_SOA_COLUMN(TrueTauPy, trueTauPy, float[2]);
DECLARE_SOA_COLUMN(TrueTauPz, trueTauPz, float[2]);
// // truth tau particles // index 0: tau+ // index 1: tau -
// DECLARE_SOA_COLUMN(TrueTauPx, trueTauPx, float[2]);
// DECLARE_SOA_COLUMN(TrueTauPy, trueTauPy, float[2]);
// DECLARE_SOA_COLUMN(TrueTauPz, trueTauPz, float[2]);
// truth tau daughter particles - 4 particles
DECLARE_SOA_COLUMN(TrueDaugPx, trueDaugPx, float[4]);
DECLARE_SOA_COLUMN(TrueDaugPy, trueDaugPy, float[4]);
Expand Down Expand Up @@ -197,15 +197,15 @@ DECLARE_SOA_TABLE(TrueTauFourTracks, "AOD", "TRUETAU",
tautree::TrueChannel,
// tautree::TrueHasRecoColl,
tautree::TruePosZ,
tautree::TrueTauPx, tautree::TrueTauPy, tautree::TrueTauPz,
// tautree::TrueTauPx, tautree::TrueTauPy, tautree::TrueTauPz,
tautree::TrueDaugPx, tautree::TrueDaugPy, tautree::TrueDaugPz,
tautree::TrueDaugPdgCode,
tautree::Problem);

DECLARE_SOA_TABLE(GenTauFourTracks, "AOD", "GENTAU",
tautree::TrueChannel,
tautree::TruePosZ,
tautree::TrueTauPx, tautree::TrueTauPy, tautree::TrueTauPz,
// tautree::TrueTauPx, tautree::TrueTauPy, tautree::TrueTauPz,
tautree::TrueDaugPx, tautree::TrueDaugPy, tautree::TrueDaugPz,
tautree::TrueDaugPdgCode,
tautree::Problem,
Expand Down Expand Up @@ -266,15 +266,15 @@ DECLARE_SOA_TABLE(TrueTauSixTracks, "AOD", "TRUETAUSIX",
tautree::TrueChannel,
// tautree::TrueHasRecoColl,
tautree::TruePosZ,
tautree::TrueTauPx, tautree::TrueTauPy, tautree::TrueTauPz,
// tautree::TrueTauPx, tautree::TrueTauPy, tautree::TrueTauPz,
tautree::True6DaugPx, tautree::True6DaugPy, tautree::True6DaugPz,
tautree::True6DaugPdgCode,
tautree::Problem);

DECLARE_SOA_TABLE(GenTauSixTracks, "AOD", "GENTAUSIX",
tautree::TrueChannel,
tautree::TruePosZ,
tautree::TrueTauPx, tautree::TrueTauPy, tautree::TrueTauPz,
// tautree::TrueTauPx, tautree::TrueTauPy, tautree::TrueTauPz,
tautree::True6DaugPx, tautree::True6DaugPy, tautree::True6DaugPz,
tautree::True6DaugPdgCode,
tautree::Problem,
Expand Down
72 changes: 62 additions & 10 deletions PWGUD/TableProducer/tauThreeProngEventTableProducer.cxx
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -262,14 +262,21 @@ struct TauThreeProngEventTableProducer {
registrySkim.add("skim/nTof", ";N_{TOFtrk};events", {HistType::kTH1F, {{10, -1., 9.}}});
}
if (doprocessMonteCarlo) {
registrySkim.add("skim/efficiencyMC", ";efficeincy;events", {HistType::kTH1D, {{10, 0., 10.}}});
registrySkim.add("skim/efficiencyMC", ";efficiency;events", {HistType::kTH1D, {{15, 0., 15.}}});
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(1, "1: All");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(2, "2: N^{#tau}=2");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(3, "3: |y^{#tau}| <= 0.9");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(4, "4: |#eta^{ch}|<0.9");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(5, "5: 4 or 6 trk");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(6, "6: 4 trk");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(7, "7: 6 trk");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(6, "e+3#pi");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(7, "#mu+3#pi");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(8, "#pi+3#pi");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(9, "6#pi");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(10, "rec");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(11, "rec e+3#pi");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(12, "rec #mu+3#pi");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(13, "rec #pi+3#pi");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->GetXaxis()->SetBinLabel(14, "rec 6#pi");

registrySkim.add("skim/problemMC", ";problem;events", {HistType::kTH1D, {{10, 0., 10.}}});

Expand All @@ -280,13 +287,14 @@ struct TauThreeProngEventTableProducer {
registrySkim.add("skim/tauPtMC", ";p_{T}^{#tau};events", {HistType::kTH1F, {{100, 0, 5.}}});
registrySkim.add("skim/tauDeltaEtaMC", ";#Delta#eta^{#tau};events ", {HistType::kTH1F, {{100, -5., 5.}}});
registrySkim.add("skim/tauDeltaPhiMC", ";#Delta#phi^{#tau}(deg.);events", {HistType::kTH1F, {{100, 131., 181}}});
registrySkim.add("skim/ditauInvMassMC", ";M_{inv}^{#tau#tau}(GeV/#it{c}^{2});events", {HistType::kTH1F, {{100, 3.4, 13.4}}});
registrySkim.add("skim/nChPartMC", ";N^{ch. part};events", {HistType::kTH1F, {{10, 0, 10.}}});
registrySkim.add("skim/daughterPhiMC", ";#phi^{daughter};events", {HistType::kTH1F, {{100, 0, 6.4}}});
registrySkim.add("skim/daughterEtaMC", ";#eta^{daughter};events", {HistType::kTH1F, {{100, -4., 4.}}});
registrySkim.add("skim/daughterPtMC", ";p_{T}^{daughter};events", {HistType::kTH1F, {{100, 0, 5.0}}});
}
if (doprocessGenerated) {
registrySkim.add("gen/efficiencyMC", ";efficeincy;events", {HistType::kTH1D, {{10, 0., 10.}}});
registrySkim.add("gen/efficiencyMC", ";efficiency;events", {HistType::kTH1D, {{15, 0., 15.}}});
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->GetXaxis()->SetBinLabel(1, "All");
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->GetXaxis()->SetBinLabel(2, "N^{#tau}=2");
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->GetXaxis()->SetBinLabel(3, "|y^{#tau}| <=0.9");
Expand All @@ -299,6 +307,10 @@ struct TauThreeProngEventTableProducer {
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->GetXaxis()->SetBinLabel(8, "#pi+3#pi");
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->GetXaxis()->SetBinLabel(9, "6#pi");
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->GetXaxis()->SetBinLabel(10, "rec");
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->GetXaxis()->SetBinLabel(11, "rec e+3#pi");
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->GetXaxis()->SetBinLabel(12, "rec #mu+3#pi");
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->GetXaxis()->SetBinLabel(13, "rec #pi+3#pi");
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->GetXaxis()->SetBinLabel(14, "rec 6#pi");

registrySkim.add("gen/problemMC", ";problem;events", {HistType::kTH1D, {{10, 0., 10.}}});
registrySkim.get<TH1>(HIST("gen/problemMC"))->GetXaxis()->SetBinLabel(1, "1: NoProblem");
Expand All @@ -315,6 +327,7 @@ struct TauThreeProngEventTableProducer {
registrySkim.add("gen/tauPtMC", ";p_{T}^{#tau};events", {HistType::kTH1F, {{100, 0, 5.}}});
registrySkim.add("gen/tauDeltaEtaMC", ";#Delta#eta^{#tau};events ", {HistType::kTH1F, {{100, -5., 5.}}});
registrySkim.add("gen/tauDeltaPhiMC", ";#Delta#phi^{#tau}(deg.);events", {HistType::kTH1F, {{100, 131., 181}}});
registrySkim.add("gen/ditauInvMassMC", ";M_{inv}^{#tau#tau}(GeV/#it{c}^{2});events", {HistType::kTH1F, {{100, 3.4, 13.4}}});
registrySkim.add("gen/nChPartMC", ";N^{ch. part};events", {HistType::kTH1F, {{10, 0, 10.}}});
registrySkim.add("gen/daughterPhiMC", ";#phi^{daughter};events", {HistType::kTH1F, {{100, 0, 6.4}}});
registrySkim.add("gen/daughterEtaMC", ";#eta^{daughter};events", {HistType::kTH1F, {{100, -4., 4.}}});
Expand Down Expand Up @@ -1212,6 +1225,13 @@ struct TauThreeProngEventTableProducer {
registrySkim.get<TH1>(HIST("skim/tauDeltaEtaMC"))->Fill(trueTauEta[0] - trueTauEta[1]);
registrySkim.get<TH1>(HIST("skim/tauDeltaPhiMC"))->Fill(calculateDeltaPhi(trueTauPhi[0], trueTauPhi[1]) * 180. / o2::constants::math::PI);

// inv mass of two taus
ROOT::Math::LorentzVector<ROOT::Math::PxPyPzE4D<double>> tau1;
ROOT::Math::LorentzVector<ROOT::Math::PxPyPzE4D<double>> tau2;
tau1.SetXYZT(trueTauX[0], trueTauY[0], trueTauZ[0], RecoDecay::e(trueTauX[0], trueTauY[0], trueTauZ[0], MassTauPlus));
tau2.SetXYZT(trueTauX[1], trueTauY[1], trueTauZ[1], RecoDecay::e(trueTauX[1], trueTauY[1], trueTauZ[1], MassTauPlus));
registrySkim.get<TH1>(HIST("skim/ditauInvMassMC"))->Fill((tau1 + tau2).M());

registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->Fill(2., 1.); // |y_tau| <= 0.9
countMothers = 0;
int nChargedDaughtersTau[2] = {0, 0};
Expand Down Expand Up @@ -1385,6 +1405,17 @@ struct TauThreeProngEventTableProducer {
if (verbose)
LOGF(info, "--- MC Collision has reconstructed collision!");
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->Fill(9., 1.);
// reconstruction in a given channel
if (nElec == oneProng && nPi == threeProng) { // 1 + 3
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->Fill(10., 1.);
} else if (nMuon == oneProng && nPi == threeProng) { // 1 + 3
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->Fill(11., 1.);
} else if (nPi == fourTracks) { // 4
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->Fill(12., 1.);
} else if (nPi == sixTracks) { // 6
registrySkim.get<TH1>(HIST("skim/efficiencyMC"))->Fill(13., 1.);
}

// trueHasRecoColl = true;
// check there is exactly one reco-level collision associated to generated collision
if (collFromMcColls.size() > 1) {
Expand Down Expand Up @@ -1641,7 +1672,7 @@ struct TauThreeProngEventTableProducer {
trueChannel,
// trueHasRecoColl,
mccoll.posZ(),
trueTauX, trueTauY, trueTauZ,
// trueTauX, trueTauY, trueTauZ,
trueDaugX, trueDaugY, trueDaugZ,
trueDaugPdgCode, problem);
} else if (nChargedDaughtersTau[0] + nChargedDaughtersTau[1] == sixTracks) { // 6
Expand Down Expand Up @@ -1673,7 +1704,7 @@ struct TauThreeProngEventTableProducer {
trueChannel,
// trueHasRecoColl,
mccoll.posZ(),
trueTauX, trueTauY, trueTauZ,
// trueTauX, trueTauY, trueTauZ,
trueDaugX, trueDaugY, trueDaugZ,
trueDaugPdgCode, problem);
} // end of saving the output
Expand Down Expand Up @@ -1795,6 +1826,13 @@ struct TauThreeProngEventTableProducer {
registrySkim.get<TH1>(HIST("gen/tauDeltaEtaMC"))->Fill(trueTauEta[0] - trueTauEta[1]);
registrySkim.get<TH1>(HIST("gen/tauDeltaPhiMC"))->Fill(calculateDeltaPhi(trueTauPhi[0], trueTauPhi[1]) * 180. / o2::constants::math::PI);

// inv mass of two taus
ROOT::Math::LorentzVector<ROOT::Math::PxPyPzE4D<double>> tau1;
ROOT::Math::LorentzVector<ROOT::Math::PxPyPzE4D<double>> tau2;
tau1.SetXYZT(trueTauX[0], trueTauY[0], trueTauZ[0], RecoDecay::e(trueTauX[0], trueTauY[0], trueTauZ[0], MassTauPlus));
tau2.SetXYZT(trueTauX[1], trueTauY[1], trueTauZ[1], RecoDecay::e(trueTauX[1], trueTauY[1], trueTauZ[1], MassTauPlus));
registrySkim.get<TH1>(HIST("gen/ditauInvMassMC"))->Fill((tau1 + tau2).M());

registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->Fill(2., 1.); // |y_tau| <= 0.9
countMothers = 0;
int nChargedDaughtersTau[2] = {0, 0};
Expand Down Expand Up @@ -1954,6 +1992,18 @@ struct TauThreeProngEventTableProducer {
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->Fill(9., 1.);
if (verbose)
LOGF(info, "--- MC Collision has reconstructed collision!");

// reconstruction in a given channel
if (nElec == oneProng && nPi == threeProng) { // 1 + 3
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->Fill(10., 1.);
} else if (nMuon == oneProng && nPi == threeProng) { // 1 + 3
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->Fill(11., 1.);
} else if (nPi == fourTracks) { // 4
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->Fill(12., 1.);
} else if (nPi == sixTracks) { // 6
registrySkim.get<TH1>(HIST("gen/efficiencyMC"))->Fill(13., 1.);
}

} else { // get only the truth information.
if (verbose)
LOGF(info, "MC Collision has NO reconstructed collision!");
Expand All @@ -1965,17 +2015,19 @@ struct TauThreeProngEventTableProducer {
genTauFourTracks(
trueChannel,
mccoll.posZ(),
trueTauX, trueTauY, trueTauZ,
// trueTauX, trueTauY, trueTauZ,
trueDaugX, trueDaugY, trueDaugZ,
trueDaugPdgCode, problem,
trueDaugPdgCode,
problem,
trueHasRecoColl);
} else if (nChargedDaughtersTau[0] + nChargedDaughtersTau[1] == sixTracks) { // 6
genTauSixTracks(
trueChannel,
mccoll.posZ(),
trueTauX, trueTauY, trueTauZ,
// trueTauX, trueTauY, trueTauZ,
trueDaugX, trueDaugY, trueDaugZ,
trueDaugPdgCode, problem,
trueDaugPdgCode,
problem,
trueHasRecoColl);
} // end of writing output

Expand Down
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