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[PWGJE] add the UE subtruction from jetPt #14063

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Merged
nzardosh merged 2 commits into from
Dec 3, 2025
Merged

[PWGJE] add the UE subtruction from jetPt #14063

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a30d52e
add the UE subtruction from jetPt
ynishida-style Dec 2, 2025
f01b51b
minor change to fix build error
ynishida-style Dec 3, 2025
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149 changes: 87 additions & 62 deletions PWGJE/Tasks/jetShape.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -110,15 +110,15 @@ struct JetShapeTask {
{"ptResolution", "ptResolution", {HistType::kTH2F, {{nBinsPt, 0, ptMax}, {100, -1.0, +1.0}}}},
{"mcCentralityReco", "mcCentralityReco", {HistType::kTH1F, {{100, 0, 100}}}},
{"mcCentralitySim", "mcCentralitySim", {HistType::kTH1F, {{100, 0, 100}}}},
{"ptHistogramPion", "ptHistogramPion", {HistType::kTH1F, {{nBinsPt, 0, ptMax}}}},
{"ptHistogramKaon", "ptHistogramKaon", {HistType::kTH1F, {{nBinsPt, 0, ptMax}}}},
{"ptHistogramProton", "ptHistogramProton", {HistType::kTH1F, {{nBinsPt, 0, ptMax}}}},
{"ptHistogramPionTof", "ptHistogramPionTof", {HistType::kTH1F, {{nBinsPt, 0, ptMax}}}},
{"ptHistogramKaonTof", "ptHistogramKaonTof", {HistType::kTH1F, {{nBinsPt, 0, ptMax}}}},
{"ptHistogramProtonTof", "ptHistogramProtonTof", {HistType::kTH1F, {{nBinsPt, 0, ptMax}}}},
{"ptGeneratedPion", "ptGeneratedPion", {HistType::kTH1F, {{nBinsPt, 0, ptMax}}}},
{"ptGeneratedKaon", "ptGeneratedKaon", {HistType::kTH1F, {{nBinsPt, 0, ptMax}}}},
{"ptGeneratedProton", "ptGeneratedProton", {HistType::kTH1F, {{nBinsPt, 0, ptMax}}}}}};
{"ptHistogramPion", "ptHistogramPion", {HistType::kTHnSparseD, {{nBinsPt, 0, ptMax}, {nBinsJetPt, jetPtMinForCut, jetPtMaxForCut}, {nBinsCentrality, centralityMinForCut, centralityMaxForCut}}}},
{"ptHistogramKaon", "ptHistogramKaon", {HistType::kTHnSparseD, {{nBinsPt, 0, ptMax}, {nBinsJetPt, jetPtMinForCut, jetPtMaxForCut}, {nBinsCentrality, centralityMinForCut, centralityMaxForCut}}}},
{"ptHistogramProton", "ptHistogramProton", {HistType::kTHnSparseD, {{nBinsPt, 0, ptMax}, {nBinsJetPt, jetPtMinForCut, jetPtMaxForCut}, {nBinsCentrality, centralityMinForCut, centralityMaxForCut}}}},
{"ptHistogramPionTof", "ptHistogramPionTof", {HistType::kTHnSparseD, {{nBinsPt, 0, ptMax}, {nBinsJetPt, jetPtMinForCut, jetPtMaxForCut}, {nBinsCentrality, centralityMinForCut, centralityMaxForCut}}}},
{"ptHistogramKaonTof", "ptHistogramKaonTof", {HistType::kTHnSparseD, {{nBinsPt, 0, ptMax}, {nBinsJetPt, jetPtMinForCut, jetPtMaxForCut}, {nBinsCentrality, centralityMinForCut, centralityMaxForCut}}}},
{"ptHistogramProtonTof", "ptHistogramProtonTof", {HistType::kTHnSparseD, {{nBinsPt, 0, ptMax}, {nBinsJetPt, jetPtMinForCut, jetPtMaxForCut}, {nBinsCentrality, centralityMinForCut, centralityMaxForCut}}}},
{"ptGeneratedPion", "ptGeneratedPion", {HistType::kTHnSparseD, {{nBinsPt, 0, ptMax}, {nBinsJetPt, jetPtMinForCut, jetPtMaxForCut}, {nBinsCentrality, centralityMinForCut, centralityMaxForCut}}}},
{"ptGeneratedKaon", "ptGeneratedKaon", {HistType::kTHnSparseD, {{nBinsPt, 0, ptMax}, {nBinsJetPt, jetPtMinForCut, jetPtMaxForCut}, {nBinsCentrality, centralityMinForCut, centralityMaxForCut}}}},
{"ptGeneratedProton", "ptGeneratedProton", {HistType::kTHnSparseD, {{nBinsPt, 0, ptMax}, {nBinsJetPt, jetPtMinForCut, jetPtMaxForCut}, {nBinsCentrality, centralityMinForCut, centralityMaxForCut}}}}}};

Configurable<float> vertexZCut{"vertexZCut", 10.0f, "Accepted z-vertex range"};

Expand Down Expand Up @@ -204,6 +204,7 @@ struct JetShapeTask {
Filter mcCollisionFilter = nabs(aod::jmccollision::posZ) < vertexZCut;

Preslice<soa::Filtered<aod::ChargedMCParticleLevelJets>> perMcCollisionJets = aod::jet::mcCollisionId;
Preslice<aod::McParticles> perMcCollision = aod::mcparticle::mcCollisionId;

void processJetShape(soa::Filtered<soa::Join<aod::JetCollisions, aod::BkgChargedRhos>>::iterator const& collision, aod::JetTracks const& tracks, soa::Join<aod::ChargedJets, aod::ChargedJetConstituents> const& jets)
{
Expand Down Expand Up @@ -282,7 +283,7 @@ struct JetShapeTask {
}
PROCESS_SWITCH(JetShapeTask, processJetShape, "JetShape", false);

void processProductionRatio(soa::Filtered<aod::JetCollisions>::iterator const& collision, soa::Join<aod::JetTracks, aod::pidTPCFullPi, aod::pidTOFFullPi, aod::pidTPCFullPr, aod::pidTOFFullPr, aod::TracksExtra, aod::TracksDCA, aod::pidTOFbeta, aod::pidTOFmass> const& tracks, soa::Join<aod::ChargedJets, aod::ChargedJetConstituents> const& jets)
void processProductionRatio(soa::Filtered<soa::Join<aod::JetCollisions, aod::BkgChargedRhos>>::iterator const& collision, soa::Join<aod::JetTracks, aod::pidTPCFullPi, aod::pidTOFFullPi, aod::pidTPCFullPr, aod::pidTOFFullPr, aod::TracksExtra, aod::TracksDCA, aod::pidTOFbeta, aod::pidTOFmass> const& tracks, soa::Join<aod::ChargedJets, aod::ChargedJetConstituents> const& jets)
{
if (!jetderiveddatautilities::selectCollision(collision, eventSelectionBits)) {
return;
Expand All @@ -295,9 +296,8 @@ struct JetShapeTask {
continue;
}

registry.fill(HIST("jetPt"), jet.pt());
registry.fill(HIST("jetEta"), jet.eta());
registry.fill(HIST("jetPhi"), jet.phi());
// Get underlying event subtracted jet.pt() as ptCorr
float ptCorr = jet.pt() - collision.rho() * jet.area();

// tracks conditions
for (const auto& track : tracks) {
Expand Down Expand Up @@ -325,6 +325,13 @@ struct JetShapeTask {
if (track.itsNCls() < nclItsMin)
continue;

registry.fill(HIST("jetPt"), jet.pt());
registry.fill(HIST("ptCorr"), ptCorr);
registry.fill(HIST("area"), jet.area());
registry.fill(HIST("rho"), collision.rho());
registry.fill(HIST("jetEta"), jet.eta());
registry.fill(HIST("jetPhi"), jet.phi());

// PID check
registry.fill(HIST("tofMass"), track.mass());
registry.fill(HIST("tpcPi"), track.p(), track.tpcNSigmaPi());
Expand Down Expand Up @@ -359,15 +366,15 @@ struct JetShapeTask {
registry.fill(HIST("tpcDedxOutOfJet"), track.p(), track.tpcSignal());

if (std::abs(track.tofNSigmaPi()) < nSigmaTofCut) {
registry.fill(HIST("tpcTofPiOutOfJet"), track.p(), track.tpcNSigmaPi(), jet.pt(), collision.centFT0M());
registry.fill(HIST("tpcTofPiOutOfJet"), track.p(), track.tpcNSigmaPi(), ptCorr, collision.centFT0M());
if (track.tpcNSigmaPi() > tpcNSigmaPiMin && track.tpcNSigmaPi() < tpcNSigmaPiMax) {
registry.fill(HIST("pVsPtForPiOutOfJet"), track.p(), track.pt(), jet.pt(), collision.centFT0M());
registry.fill(HIST("pVsPtForPiOutOfJet"), track.p(), track.pt(), ptCorr, collision.centFT0M());
}
}
if (std::abs(track.tofNSigmaPr()) < nSigmaTofCut) {
registry.fill(HIST("tpcTofPrOutOfJet"), track.p(), track.tpcNSigmaPr(), jet.pt(), collision.centFT0M());
registry.fill(HIST("tpcTofPrOutOfJet"), track.p(), track.tpcNSigmaPr(), ptCorr, collision.centFT0M());
if (track.tpcNSigmaPr() > tpcNSigmaPrMin && track.tpcNSigmaPr() < tpcNSigmaPrMax) {
registry.fill(HIST("pVsPtForPrOutOfJet"), track.p(), track.pt(), jet.pt(), collision.centFT0M());
registry.fill(HIST("pVsPtForPrOutOfJet"), track.p(), track.pt(), ptCorr, collision.centFT0M());
}
}
}
Expand All @@ -377,85 +384,103 @@ struct JetShapeTask {
registry.fill(HIST("tofBeta"), track.p(), track.beta());

if (std::abs(track.tofNSigmaPr()) < nSigmaTofCut) {
registry.fill(HIST("tpcTofPr"), track.p(), track.tpcNSigmaPr(), distance, jet.pt(), collision.centFT0M());
registry.fill(HIST("tpcTofPr"), track.p(), track.tpcNSigmaPr(), distance, ptCorr, collision.centFT0M());
if (track.tpcNSigmaPr() > tpcNSigmaPrMin && track.tpcNSigmaPr() < tpcNSigmaPrMax) {
registry.fill(HIST("pVsPtForPr"), track.p(), track.pt(), distance, jet.pt(), collision.centFT0M());
registry.fill(HIST("pVsPtForPr"), track.p(), track.pt(), distance, ptCorr, collision.centFT0M());
}
}

if (std::abs(track.tofNSigmaPi()) < nSigmaTofCut) {
registry.fill(HIST("tpcTofPi"), track.p(), track.tpcNSigmaPi(), distance, jet.pt(), collision.centFT0M());
registry.fill(HIST("tpcTofPi"), track.p(), track.tpcNSigmaPi(), distance, ptCorr, collision.centFT0M());
if (track.tpcNSigmaPi() > tpcNSigmaPiMin && track.tpcNSigmaPi() < tpcNSigmaPiMax) {
registry.fill(HIST("pVsPtForPi"), track.p(), track.pt(), distance, jet.pt(), collision.centFT0M());
registry.fill(HIST("pVsPtForPi"), track.p(), track.pt(), distance, ptCorr, collision.centFT0M());
}
}
}
}
}
PROCESS_SWITCH(JetShapeTask, processProductionRatio, "production ratio", false);

void processReco(soa::Join<aod::Tracks, aod::TracksExtra, aod::TracksDCA, aod::McTrackLabels> const& tracks, aod::McParticles const&)
void processReco(soa::Filtered<soa::Join<aod::JetCollisionsMCD, aod::BkgChargedRhos>>::iterator const& collision, soa::Join<aod::McCollisions, aod::McCentFT0Ms> const& mcCollision, soa::Join<aod::Tracks, aod::TracksExtra, aod::TracksDCA, aod::McTrackLabels> const& tracks, soa::Filtered<aod::ChargedMCDetectorLevelJets> const& mcdjets, aod::McParticles const& mcParticles)
{

(void)mcCollision;
(void)mcParticles;

registry.fill(HIST("eventCounter"), 0.5);
float centrality = collision.centFT0M();

for (const auto& track : tracks) {
if (track.has_mcParticle()) {
auto mcParticle = track.mcParticle();
registry.fill(HIST("ptResolution"), track.pt(), track.pt() - mcParticle.pt());
for (const auto& mcdjet : mcdjets) {

if (std::abs(track.eta()) > etaTrUp)
continue;
if (track.tpcNClsCrossedRows() < nclcrossTpcMin)
continue;
if (std::abs(track.dcaXY()) > dcaxyMax)
continue;
if (track.itsChi2NCl() > chi2ItsMax)
continue;
if (track.tpcChi2NCl() > chi2TpcMax)
continue;
if (track.tpcNClsFound() < nclTpcMin)
continue;
if (track.itsNCls() < nclItsMin)
continue;
// Get underlying event subtracted jet.pt() as ptCorr
float mcdPtCorr = mcdjet.pt() - collision.rho() * mcdjet.area();

if (mcParticle.isPhysicalPrimary() && std::fabs(mcParticle.y()) < mcRapidityMax) {
if (std::abs(mcParticle.pdgCode()) == PDG_t::kPiPlus)
registry.fill(HIST("ptHistogramPion"), mcParticle.pt());
if (std::abs(mcParticle.pdgCode()) == PDG_t::kKPlus)
registry.fill(HIST("ptHistogramKaon"), mcParticle.pt());
if (std::abs(mcParticle.pdgCode()) == PDG_t::kProton)
registry.fill(HIST("ptHistogramProton"), mcParticle.pt());
}
for (const auto& track : tracks) {
if (track.has_mcParticle()) {
auto mcParticle = track.mcParticle();
registry.fill(HIST("ptResolution"), track.pt(), track.pt() - mcParticle.pt());

if (std::abs(track.eta()) > etaTrUp)
continue;
if (track.tpcNClsCrossedRows() < nclcrossTpcMin)
continue;
if (std::abs(track.dcaXY()) > dcaxyMax)
continue;
if (track.itsChi2NCl() > chi2ItsMax)
continue;
if (track.tpcChi2NCl() > chi2TpcMax)
continue;
if (track.tpcNClsFound() < nclTpcMin)
continue;
if (track.itsNCls() < nclItsMin)
continue;

if (track.hasTOF()) {
if (mcParticle.isPhysicalPrimary() && std::fabs(mcParticle.y()) < mcRapidityMax) {
if (std::abs(mcParticle.pdgCode()) == PDG_t::kPiPlus)
registry.fill(HIST("ptHistogramPionTof"), mcParticle.pt());
registry.fill(HIST("ptHistogramPion"), mcParticle.pt(), mcdPtCorr, centrality);
if (std::abs(mcParticle.pdgCode()) == PDG_t::kKPlus)
registry.fill(HIST("ptHistogramKaonTof"), mcParticle.pt());
registry.fill(HIST("ptHistogramKaon"), mcParticle.pt(), mcdPtCorr, centrality);
if (std::abs(mcParticle.pdgCode()) == PDG_t::kProton)
registry.fill(HIST("ptHistogramProtonTof"), mcParticle.pt());
registry.fill(HIST("ptHistogramProton"), mcParticle.pt(), mcdPtCorr, centrality);
}

if (track.hasTOF()) {
if (mcParticle.isPhysicalPrimary() && std::fabs(mcParticle.y()) < mcRapidityMax) {
if (std::abs(mcParticle.pdgCode()) == PDG_t::kPiPlus)
registry.fill(HIST("ptHistogramPionTof"), mcParticle.pt(), mcdPtCorr, centrality);
if (std::abs(mcParticle.pdgCode()) == PDG_t::kKPlus)
registry.fill(HIST("ptHistogramKaonTof"), mcParticle.pt(), mcdPtCorr, centrality);
if (std::abs(mcParticle.pdgCode()) == PDG_t::kProton)
registry.fill(HIST("ptHistogramProtonTof"), mcParticle.pt(), mcdPtCorr, centrality);
}
}
}
}
}
}
PROCESS_SWITCH(JetShapeTask, processReco, "process reconstructed information", true);

void processSim(soa::Join<aod::McCollisions, aod::McCentFT0Ms>::iterator const& mcCollision, aod::McParticles const& mcParticles)
void processSim(soa::Join<aod::McCollisions, aod::McCentFT0Ms>::iterator const& mcCollision, soa::Filtered<aod::ChargedMCParticleLevelJets> const& mcpjets, aod::McParticles const& mcParticles)
{
auto mcId = mcCollision.globalIndex();
float centrality = mcCollision.centFT0M();
registry.fill(HIST("mcCentralitySim"), centrality);

registry.fill(HIST("mcCentralitySim"), mcCollision.centFT0M());
auto mcpjetsPerCollision = mcpjets.sliceBy(perMcCollisionJets, mcId);
auto mcParticlesPerCollision = mcParticles.sliceBy(perMcCollision, mcId);

for (const auto& mcParticle : mcParticles) {
for (const auto& mcpjet : mcpjetsPerCollision) {

if (mcParticle.isPhysicalPrimary() && std::fabs(mcParticle.y()) < mcRapidityMax) {
if (std::abs(mcParticle.pdgCode()) == PDG_t::kPiPlus)
registry.fill(HIST("ptGeneratedPion"), mcParticle.pt());
if (std::abs(mcParticle.pdgCode()) == PDG_t::kKPlus)
registry.fill(HIST("ptGeneratedKaon"), mcParticle.pt());
if (std::abs(mcParticle.pdgCode()) == PDG_t::kProton)
registry.fill(HIST("ptGeneratedProton"), mcParticle.pt());
for (const auto& mcParticle : mcParticlesPerCollision) {

if (mcParticle.isPhysicalPrimary() && std::fabs(mcParticle.y()) < mcRapidityMax) {
if (std::abs(mcParticle.pdgCode()) == PDG_t::kPiPlus)
registry.fill(HIST("ptGeneratedPion"), mcParticle.pt(), mcpjet.pt(), centrality);
if (std::abs(mcParticle.pdgCode()) == PDG_t::kKPlus)
registry.fill(HIST("ptGeneratedKaon"), mcParticle.pt(), mcpjet.pt(), centrality);
if (std::abs(mcParticle.pdgCode()) == PDG_t::kProton)
registry.fill(HIST("ptGeneratedProton"), mcParticle.pt(), mcpjet.pt(), centrality);
}
}
}
}
Expand Down
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