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abmodak merged 2 commits into from
Nov 13, 2025
Merged

[PWGLF] Add updated track efficiency estimation #13820

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aaa2cab
Add updated track efficiency estimation
abmodak Nov 13, 2025
9657022
Fix o2 linter warnings
abmodak Nov 13, 2025
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182 changes: 173 additions & 9 deletions PWGLF/Tasks/GlobalEventProperties/heavyionMultiplicity.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -92,6 +92,31 @@
kSpeciesend
};

enum {
kGenTrkTypebegin = 0,
kGenAll = 1,
kGenPion,
kGenKaon,
kGenProton,
kGenOther,
kGenTrkTypeend
};

enum {
kRecTrkTypebegin = 0,
kRecoAll = 1,
kRecoPrimary,
kRecoPion,
kRecoKaon,
kRecoProton,
kRecoOther,
kRecoSecondary,
kRecoWeakDecay,
kRecoFake,
kRecoBkg,
kRecTrkTypeend
};

static constexpr TrackSelectionFlags::flagtype TrackSelectionIts =
TrackSelectionFlags::kITSNCls | TrackSelectionFlags::kITSChi2NDF |
TrackSelectionFlags::kITSHits;
Expand All @@ -113,12 +138,15 @@
AxisSpec axisTrackType = {kTrackTypeend - 1, +kTrackTypebegin + 0.5, +kTrackTypeend - 0.5, "", "TrackTypeAxis"};
AxisSpec axisGenPtVary = {kGenpTend - 1, +kGenpTbegin + 0.5, +kGenpTend - 0.5, "", "GenpTVaryAxis"};
AxisSpec axisSpecies = {kSpeciesend - 1, +kSpeciesbegin + 0.5, +kSpeciesend - 0.5, "", "SpeciesAxis"};
AxisSpec axisGenTrkType = {kGenTrkTypeend - 1, +kGenTrkTypebegin + 0.5, +kGenTrkTypeend - 0.5, "", "GenTrackTypeAxis"};
AxisSpec axisRecTrkType = {kRecTrkTypeend - 1, +kRecTrkTypebegin + 0.5, +kRecTrkTypeend - 0.5, "", "RecTrackTypeAxis"};
AxisSpec axisMassK0s = {200, 0.4, 0.6, "K0sMass", "K0sMass"};
AxisSpec axisMassLambda = {200, 1.07, 1.17, "Lambda/AntiLamda Mass", "Lambda/AntiLamda Mass"};
AxisSpec axisTracks{9, 0.5, 9.5, "#tracks", "TrackAxis"};
auto static constexpr kMinCharge = 3.f;
auto static constexpr kMinpTcut = 0.1f;
auto static constexpr kNItslayers = 7;
AxisSpec axisDeltaEta{50, -1.0, +1.0, "#Delta(#eta)"};
auto static constexpr KminCharge = 3.f;
auto static constexpr KminPtCut = 0.1f;
auto static constexpr KnItsLayers = 7;

struct HeavyionMultiplicity {

Expand Down Expand Up @@ -229,7 +257,7 @@
auto* x2 = htrack->GetAxis(1);
x2->SetBinLabel(1, "All tracks");
x2->SetBinLabel(2, "Non-fake tracks");
for (int i = 0; i < kNItslayers; i++) {
for (int i = 0; i < KnItsLayers; i++) {
x2->SetBinLabel(i + 3, Form("layer %d", i));
}
}
Expand Down Expand Up @@ -293,6 +321,22 @@
histos.add("hgendndetaVscentBeforeEvtSel", "hgendndetaBeforeEvtSel vs centrality", kTH2F, {axisEta, impactParAxis});
histos.add("hgendndetaVscentAfterEvtSel", "hgendndetaAfterEvtSel vs centrality", kTH2F, {axisEta, impactParAxis});
}

if (doprocessMCeff) {
histos.add("hGenMCvertexZ", "hGenMCvertexZ", kTH1D, {axisVtxZ}, false);
histos.add("hGenMCvtxzcent", "hGenMCvtxzcent", kTH3D, {axisVtxZ, centAxis, axisOccupancy}, false);
histos.add("hGenMCAssoRecvertexZ", "hGenMCAssoRecvertexZ", kTH1D, {axisVtxZ}, false);
histos.add("hGenMCAssoRecvtxzcent", "hGenMCAssoRecvtxzcent", kTH3D, {axisVtxZ, centAxis, axisOccupancy}, false);
histos.add("hGenMCdndeta", "hGenMCdndeta", kTHnSparseD, {axisVtxZ, centAxis, axisOccupancy, axisEta, axisPhi}, false);
histos.add("hGenMCAssoRecdndeta", "hGenMCAssoRecdndeta", kTHnSparseD, {axisVtxZ, centAxis, axisOccupancy, axisEta, axisPhi, axisGenTrkType, axisGenPtVary}, false);

histos.add("hRecMCvertexZ", "hRecMCvertexZ", kTH1D, {axisVtxZ}, false);
histos.add("hRecMCvtxzcent", "hRecMCvtxzcent", kTH3D, {axisVtxZ, centAxis, axisOccupancy}, false);
histos.add("hRecMCcentrality", "hRecMCcentrality", kTH1D, {axisCent}, false);
histos.add("hRecMCphivseta", "hRecMCphivseta", kTH2D, {axisPhi2, axisEta}, false);
histos.add("hRecMCdndeta", "hRecMCdndeta", kTHnSparseD, {axisVtxZ, centAxis, axisOccupancy, axisEta, axisPhi, axisRecTrkType}, false);
histos.add("etaResolution", "etaResolution", kTH2D, {axisEta, axisDeltaEta});
}
}

template <typename CheckCol>
Expand Down Expand Up @@ -402,7 +446,7 @@
if (pdgTrack == nullptr) {
return false;
}
if (std::abs(pdgTrack->Charge()) < kMinCharge) {
if (std::abs(pdgTrack->Charge()) < KminCharge) {
return false;
}
if (std::abs(track.eta()) >= etaRange) {
Expand Down Expand Up @@ -543,7 +587,7 @@
continue;
}
histos.fill(HIST("hmcgendndeta"), RecCol.posZ(), selColCent(RecCol), particle.eta(), particle.phi(), static_cast<double>(kSpAll), kNoGenpTVar);
if (particle.pt() < kMinpTcut) {
if (particle.pt() < KminPtCut) {
histos.fill(HIST("hmcgendndeta"), RecCol.posZ(), selColCent(RecCol), particle.eta(), particle.phi(), static_cast<double>(kSpAll), kGenpTup, -10.0 * particle.pt() + 2);
histos.fill(HIST("hmcgendndeta"), RecCol.posZ(), selColCent(RecCol), particle.eta(), particle.phi(), static_cast<double>(kSpAll), kGenpTdown, 5.0 * particle.pt() + 0.5);
} else {
Expand Down Expand Up @@ -607,7 +651,7 @@
continue;
}
histos.fill(HIST("hmcgendndpt"), selColCent(RecCol), particle.pt(), kNoGenpTVar);
if (particle.pt() < kMinpTcut) {
if (particle.pt() < KminPtCut) {
histos.fill(HIST("hmcgendndpt"), selColCent(RecCol), particle.pt(), kGenpTup, -10.0 * particle.pt() + 2);
histos.fill(HIST("hmcgendndpt"), selColCent(RecCol), particle.pt(), kGenpTdown, 5.0 * particle.pt() + 0.5);
} else {
Expand Down Expand Up @@ -641,7 +685,7 @@
}
histos.fill(HIST("hTracksCount"), selColCent(RecCol), 1);
bool isFakeItsTracks = false;
for (int i = 0; i < kNItslayers; i++) {
for (int i = 0; i < KnItsLayers; i++) {
if (Rectrack.mcMask() & 1 << i) {
isFakeItsTracks = true;
histos.fill(HIST("hTracksCount"), selColCent(RecCol), i + 3);
Expand Down Expand Up @@ -793,7 +837,7 @@
continue;
}
histos.fill(HIST("hmcgendndetapp"), RecCol.posZ(), RecCol.centFT0M(), particle.eta(), particle.phi(), static_cast<double>(kSpAll), kNoGenpTVar);
if (particle.pt() < kMinpTcut) {
if (particle.pt() < KminPtCut) {
histos.fill(HIST("hmcgendndetapp"), RecCol.posZ(), RecCol.centFT0M(), particle.eta(), particle.phi(), static_cast<double>(kSpAll), kGenpTup, -10.0 * particle.pt() + 2);
histos.fill(HIST("hmcgendndetapp"), RecCol.posZ(), RecCol.centFT0M(), particle.eta(), particle.phi(), static_cast<double>(kSpAll), kGenpTdown, 5.0 * particle.pt() + 0.5);
} else {
Expand Down Expand Up @@ -835,10 +879,10 @@
if (std::abs(particle.eta()) < 1.0) {
multBarrelEta10++;
}
if (-3.3 < particle.eta() && particle.eta() < -2.1) {

Check failure on line 882 in PWGLF/Tasks/GlobalEventProperties/heavyionMultiplicity.cxx

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
multFT0C++;
}
if (3.5 < particle.eta() && particle.eta() < 4.9) {

Check failure on line 885 in PWGLF/Tasks/GlobalEventProperties/heavyionMultiplicity.cxx

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
multFT0A++;
}
}
Expand Down Expand Up @@ -916,6 +960,125 @@
}
}

void processMCeff(soa::Join<aod::McCollisions, aod::McCollsExtra>::iterator const& mcCollision, CollisionMCRecTable const& RecCols, TrackMCTrueTable const& GenParticles, FilTrackMCRecTable const& RecTracks)
{
auto gencent = -999;
auto genoccu = -999;
bool atLeastOne = false;

for (const auto& RecCol : RecCols) {
if (!isEventSelected(RecCol)) {
continue;
}
if (RecCol.globalIndex() != mcCollision.bestCollisionIndex()) {
continue;
}
atLeastOne = true;
gencent = selColCent(RecCol);
genoccu = selColOccu(RecCol);
}

histos.fill(HIST("hGenMCvertexZ"), mcCollision.posZ());
histos.fill(HIST("hGenMCvtxzcent"), mcCollision.posZ(), gencent, genoccu);

if (atLeastOne) {
histos.fill(HIST("hGenMCAssoRecvertexZ"), mcCollision.posZ());
histos.fill(HIST("hGenMCAssoRecvtxzcent"), mcCollision.posZ(), gencent, genoccu);
}

for (const auto& particle : GenParticles) {
if (!isGenTrackSelected(particle)) {
continue;
}
histos.fill(HIST("hGenMCdndeta"), mcCollision.posZ(), gencent, genoccu, particle.eta(), particle.phi());
if (atLeastOne) {
histos.fill(HIST("hGenMCAssoRecdndeta"), mcCollision.posZ(), gencent, genoccu, particle.eta(), particle.phi(), static_cast<double>(kGenAll), kNoGenpTVar);
if (particle.pt() < KminPtCut) {
histos.fill(HIST("hGenMCAssoRecdndeta"), mcCollision.posZ(), gencent, genoccu, particle.eta(), particle.phi(), static_cast<double>(kGenAll), kGenpTup, -10.0 * particle.pt() + 2);
histos.fill(HIST("hGenMCAssoRecdndeta"), mcCollision.posZ(), gencent, genoccu, particle.eta(), particle.phi(), static_cast<double>(kGenAll), kGenpTdown, 5.0 * particle.pt() + 0.5);
} else {
histos.fill(HIST("hGenMCAssoRecdndeta"), mcCollision.posZ(), gencent, genoccu, particle.eta(), particle.phi(), static_cast<double>(kSpAll), kGenpTup);
histos.fill(HIST("hGenMCAssoRecdndeta"), mcCollision.posZ(), gencent, genoccu, particle.eta(), particle.phi(), static_cast<double>(kGenAll), kGenpTdown);
}
int pid = 0;
switch (std::abs(particle.pdgCode())) {
case PDG_t::kPiPlus:
pid = kGenPion;
break;
case PDG_t::kKPlus:
pid = kGenKaon;
break;
case PDG_t::kProton:
pid = kGenProton;
break;
default:
pid = kGenOther;
break;
}
histos.fill(HIST("hGenMCAssoRecdndeta"), mcCollision.posZ(), gencent, genoccu, particle.eta(), particle.phi(), static_cast<double>(pid), kNoGenpTVar);
} // Associated with reco col
} // track (mcgen) loop

for (const auto& RecCol : RecCols) {
if (!isEventSelected(RecCol)) {
continue;
}
if (RecCol.globalIndex() != mcCollision.bestCollisionIndex()) {
continue;
}
histos.fill(HIST("hRecMCvertexZ"), RecCol.posZ());
histos.fill(HIST("hRecMCcentrality"), selColCent(RecCol));
histos.fill(HIST("hRecMCvtxzcent"), RecCol.posZ(), selColCent(RecCol), selColOccu(RecCol));

auto recTracksPart = RecTracks.sliceBy(perCollision, RecCol.globalIndex());
std::vector<int> mclabels;
for (const auto& Rectrack : recTracksPart) {
if (!isTrackSelected(Rectrack)) {
continue;
}
histos.fill(HIST("hRecMCphivseta"), Rectrack.phi(), Rectrack.eta());
histos.fill(HIST("hRecMCdndeta"), RecCol.posZ(), selColCent(RecCol), selColOccu(RecCol), Rectrack.eta(), Rectrack.phi(), static_cast<double>(kRecoAll));
if (Rectrack.has_mcParticle()) {
int pid = 0;
auto mcpart = Rectrack.mcParticle();
histos.fill(HIST("etaResolution"), Rectrack.eta(), Rectrack.eta() - mcpart.eta());
if (mcpart.isPhysicalPrimary()) {
pid = kRecoPrimary;
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@vkucera vkucera Nov 17, 2025

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This value is never used.

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@abmodak abmodak Nov 17, 2025

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Hi @vkucera, sorry, I do not understand your comment.

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@vkucera vkucera Nov 17, 2025

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Hi @abmodak , the value kRecoPrimary assigned in the variable pid is never used, therefore the assignment is useless.

switch (std::abs(mcpart.pdgCode())) {
case PDG_t::kPiPlus:
pid = kRecoPion;
break;
case PDG_t::kKPlus:
pid = kRecoKaon;
break;
case PDG_t::kProton:
pid = kRecoProton;
break;
default:
pid = kRecoOther;
break;
}
} else {
pid = kRecoSecondary;
}
if (mcpart.has_mothers()) {
auto mcpartMother = mcpart.template mothers_as<aod::McParticles>().front();
if (mcpartMother.pdgCode() == PDG_t::kK0Short || std::abs(mcpartMother.pdgCode()) == PDG_t::kLambda0) {
pid = kRecoWeakDecay;
}
}
if (find(mclabels.begin(), mclabels.end(), Rectrack.mcParticleId()) != mclabels.end()) {
pid = kRecoFake;
}
mclabels.push_back(Rectrack.mcParticleId());
histos.fill(HIST("hRecMCdndeta"), RecCol.posZ(), selColCent(RecCol), selColOccu(RecCol), mcpart.eta(), mcpart.phi(), static_cast<double>(pid));
} else {
histos.fill(HIST("hRecMCdndeta"), RecCol.posZ(), selColCent(RecCol), selColOccu(RecCol), Rectrack.eta(), Rectrack.phi(), static_cast<double>(kRecoBkg));
}
} // track (mcrec) loop
} // collision loop
}

PROCESS_SWITCH(HeavyionMultiplicity, processData, "process data CentFT0C", false);
PROCESS_SWITCH(HeavyionMultiplicity, processCorrelation, "do correlation study in data", false);
PROCESS_SWITCH(HeavyionMultiplicity, processMonteCarlo, "process MC CentFT0C", false);
Expand All @@ -926,6 +1089,7 @@
PROCESS_SWITCH(HeavyionMultiplicity, processppMonteCarlo, "process pp MC", false);
PROCESS_SWITCH(HeavyionMultiplicity, processGen, "process pure MC gen", false);
PROCESS_SWITCH(HeavyionMultiplicity, processEvtLossSigLossMC, "process Signal Loss, Event Loss", false);
PROCESS_SWITCH(HeavyionMultiplicity, processMCeff, "process extra efficiency function", false);
};

WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
Expand Down
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