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[PWGLF] Preserve selected resonance parents during primary selection #17328

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sawankumawat wants to merge 7 commits into from
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[PWGLF] Preserve selected resonance parents during primary selection #17328

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f4b700e
Preserve selected resonance parents during primary selection
sawankumawat Aug 5, 2026
3281130
removed extra space
sawankumawat Aug 5, 2026
18deae5
Preserve selected resonance parents during primary selection
sawankumawat Aug 5, 2026
10da8ed
dummy commit to retrigger o2 test
sawankumawat Aug 5, 2026
d40cb79
solved megalinter error of unused variables
sawankumawat Aug 5, 2026
08e6e56
updated the logic from recent pull request
sawankumawat Aug 5, 2026
bffe78e
fixed clang format error
sawankumawat Aug 5, 2026
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44 changes: 42 additions & 2 deletions PWGLF/Tasks/QC/mcParticlePrediction.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,14 @@ static const std::vector<std::string> parameterNames{"Enable"};
static constexpr int nParameters = 1;
static const int defaultParticles[PIDExtended::NIDsTot][nParameters]{{0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {1}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}};
bool enabledParticlesArray[PIDExtended::NIDsTot];
static constexpr bool isResonance(PIDExtended::ID id)
{
return id == PIDExtended::Phi ||
id == PIDExtended::Kstar ||
id == PIDExtended::KstarPM ||
id == PIDExtended::Xi1530 ||
id == PIDExtended::Lambda1520;
}

// Estimators
struct Estimators {
Expand Down Expand Up @@ -316,6 +324,15 @@ struct McParticlePrediction {
h->GetXaxis()->SetBinLabel(i + 1, PIDExtended::getName(i));
}

auto hBefore = histos.add<TH1>("particles/idBeforePrimarySelection", "", kTH1D, {{PIDExtended::NIDsTot, -0.5, PIDExtended::NIDsTot - 0.5}});

auto hAfter = histos.add<TH1>("particles/idAfterPrimarySelection", "", kTH1D, {{PIDExtended::NIDsTot, -0.5, PIDExtended::NIDsTot - 0.5}});

for (int i = 0; i < PIDExtended::NIDsTot; ++i) {
hBefore->GetXaxis()->SetBinLabel(i + 1, PIDExtended::getName(i));
hAfter->GetXaxis()->SetBinLabel(i + 1, PIDExtended::getName(i));
}

for (int i = 0; i < Estimators::nEstimators; i++) {
if (!enabledEstimatorsArray[i]) {
continue;
Expand Down Expand Up @@ -467,6 +484,18 @@ struct McParticlePrediction {
if (enabledEstimatorsArray[Estimators::ZNC]) {
nMult[Estimators::ZNC] = mCounter.countZNC(mcParticles);
}
if (enabledEstimatorsArray[Estimators::ZEM1]) {
nMult[Estimators::ZEM1] = 0; // Not implemented yet
}
if (enabledEstimatorsArray[Estimators::ZEM2]) {
nMult[Estimators::ZEM2] = 0; // Not implemented yet
}
if (enabledEstimatorsArray[Estimators::ZPA]) {
nMult[Estimators::ZPA] = 0; // Not implemented yet
}
if (enabledEstimatorsArray[Estimators::ZPC]) {
nMult[Estimators::ZPC] = 0; // Not implemented yet
}
if (enabledEstimatorsArray[Estimators::ITSIB] || enableVsITSHistograms) {
nMult[Estimators::ITSIB] = mCounter.countITSIB(mcParticles);
}
Expand Down Expand Up @@ -541,10 +570,21 @@ struct McParticlePrediction {
continue;
}

if (!particle.isPhysicalPrimary()) {
// if (!particle.isPhysicalPrimary()) {
// continue;
// }

// Count ids before applying the primary selection
histos.fill(HIST("particles/idBeforePrimarySelection"), id);

// Keep supported resonances even if they are not marked as physical primaries
if (selectPrimaries.value && !isResonance(id) && !particle.isPhysicalPrimary()) {
continue;
}

// Count ids surviving the selection
histos.fill(HIST("particles/idAfterPrimarySelection"), id);

const TParticlePDG* p = pdgDB->GetParticle(particle.pdgCode());
if (p) {
if (std::abs(p->Charge()) > chargetolerance) {
Expand All @@ -559,7 +599,7 @@ struct McParticlePrediction {
histos.fill(HIST("particles/y/undefined"), particle.y());
}

if (std::abs(particle.pt()) < ptCut.value) { // Fill the eta and rapidity histograms only for particles above the pt cut
if (std::abs(particle.pt()) > ptCut.value) { // Fill the eta and rapidity histograms only for particles above the pt cut
for (int i = 0; i < Estimators::nEstimators; i++) {
if (!enabledEstimatorsArray[i]) {
continue;
Expand Down
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