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[PWGHF] Fix for D-Meson Trigger Count #13833

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Merged
apalasciano merged 5 commits into from
Nov 18, 2025
Merged

[PWGHF] Fix for D-Meson Trigger Count #13833

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0669b5a
Update correlatorDplusHadrons.cxx
Simple-Shyam Nov 14, 2025
7b7232e
Please consider the following formatting changes
alibuild Nov 14, 2025
d214cbd
Merge pull request #30 from alibuild/alibot-cleanup-13833
Simple-Shyam Nov 14, 2025
01d2d7e
Update correlatorDplusHadrons.cxx
Simple-Shyam Nov 14, 2025
ff574ff
Update correlatorDplusHadrons.cxx
Simple-Shyam Nov 17, 2025
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49 changes: 22 additions & 27 deletions PWGHF/HFC/TableProducer/correlatorDplusHadrons.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -182,7 +182,7 @@ struct HfCorrelatorDplusHadrons {
Produces<aod::Dplus> entryDplus;
Produces<aod::Hadron> entryHadron;
static constexpr std::size_t NDaughters{3u};
static constexpr float kEtaDaughtersMax = 0.8f; // Eta cut on daughters of D+ meson as Run2
static constexpr float EtaDaughtersMax = 0.8f; // Eta cut on daughters of D+ meson as Run2

Configurable<int> selectionFlagDplus{"selectionFlagDplus", 7, "Selection Flag for Dplus"}; // 7 corresponds to topo+PID cuts
Configurable<int> numberEventsMixed{"numberEventsMixed", 5, "Number of events mixed in ME process"};
Expand Down Expand Up @@ -425,9 +425,6 @@ struct HfCorrelatorDplusHadrons {
float const multiplicityFT0M = collision.multFT0M();

// MC reco level
bool isDplusPrompt = false;
bool isDplusNonPrompt = false;
bool isDplusSignal = false;
for (const auto& candidate : candidates) {
// rapidity and pT selections
if (std::abs(HfHelper::yDplus(candidate)) >= yCandMax || candidate.pt() <= ptCandMin || candidate.pt() >= ptCandMax) {
Expand All @@ -437,7 +434,7 @@ struct HfCorrelatorDplusHadrons {
double etaDaugh1 = RecoDecay::eta(std::array{candidate.pxProng0(), candidate.pyProng0(), candidate.pzProng0()});
double etaDaugh2 = RecoDecay::eta(std::array{candidate.pxProng1(), candidate.pyProng1(), candidate.pzProng1()});
double etaDaugh3 = RecoDecay::eta(std::array{candidate.pxProng2(), candidate.pyProng2(), candidate.pzProng2()});
if (std::abs(etaDaugh1) >= kEtaDaughtersMax || std::abs(etaDaugh2) >= kEtaDaughtersMax || std::abs(etaDaugh3) >= kEtaDaughtersMax) {
if (std::abs(etaDaugh1) >= EtaDaughtersMax || std::abs(etaDaugh2) >= EtaDaughtersMax || std::abs(etaDaugh3) >= EtaDaughtersMax) {
continue;
}
// efficiency weight determination
Expand All @@ -447,10 +444,10 @@ struct HfCorrelatorDplusHadrons {
efficiencyWeightD = 1. / efficiencyD->at(effBinD);
}
// Dplus flag
isDplusSignal = std::abs(candidate.flagMcMatchRec()) == hf_decay::hf_cand_3prong::DecayChannelMain::DplusToPiKPi;
bool isDplusSignal = std::abs(candidate.flagMcMatchRec()) == hf_decay::hf_cand_3prong::DecayChannelMain::DplusToPiKPi;
// prompt and non-prompt division
isDplusPrompt = candidate.originMcRec() == RecoDecay::OriginType::Prompt;
isDplusNonPrompt = candidate.originMcRec() == RecoDecay::OriginType::NonPrompt;
bool isDplusPrompt = candidate.originMcRec() == RecoDecay::OriginType::Prompt;
bool isDplusNonPrompt = candidate.originMcRec() == RecoDecay::OriginType::NonPrompt;

std::vector<float> outputMl = {-1., -1., -1.};

Expand Down Expand Up @@ -548,8 +545,6 @@ struct HfCorrelatorDplusHadrons {
int poolBin = corrBinningMcGen.getBin(std::make_tuple(mcCollision.posZ(), mcCollision.multMCFT0A()));
registry.fill(HIST("hMultFT0AMcGen"), mcCollision.multMCFT0A());

bool isDplusPrompt = false;
bool isDplusNonPrompt = false;
// MC gen level
for (const auto& particle1 : mcParticles) {
// check if the particle is Dplus (for general plot filling and selection, so both cases are fine) - NOTE: decay channel is not probed!
Expand All @@ -563,22 +558,6 @@ struct HfCorrelatorDplusHadrons {
if (std::abs(yD) >= yCandMax || particle1.pt() <= ptCandMin) {
continue;
}
registry.fill(HIST("hDplusBin"), poolBin);
registry.fill(HIST("hPtCandMCGen"), particle1.pt());
registry.fill(HIST("hEtaMcGen"), particle1.eta());
registry.fill(HIST("hPhiMcGen"), RecoDecay::constrainAngle(particle1.phi(), -PIHalf));
registry.fill(HIST("hYMCGen"), yD);

// prompt and non-prompt division
isDplusPrompt = particle1.originMcGen() == RecoDecay::OriginType::Prompt;
isDplusNonPrompt = particle1.originMcGen() == RecoDecay::OriginType::NonPrompt;
if (isDplusPrompt) {
registry.fill(HIST("hPtCandMcGenPrompt"), particle1.pt());
} else if (isDplusNonPrompt) {
registry.fill(HIST("hPtCandMcGenNonPrompt"), particle1.pt());
}

// prompt and non-prompt division
std::vector<int> listDaughters{};
std::array<int, NDaughters> const arrDaughDplusPDG = {+kPiPlus, -kKPlus, kPiPlus};
std::array<int, NDaughters> prongsId{};
Expand All @@ -590,7 +569,7 @@ struct HfCorrelatorDplusHadrons {
bool isDaughtersOk = true;
for (const auto& dauIdx : listDaughters) {
auto daughI = mcParticles.rawIteratorAt(dauIdx - mcParticles.offset());
if (std::abs(daughI.eta()) >= kEtaDaughtersMax) {
if (std::abs(daughI.eta()) >= EtaDaughtersMax) {
isDaughtersOk = false;
break;
}
Expand All @@ -600,6 +579,22 @@ struct HfCorrelatorDplusHadrons {
if (!isDaughtersOk)
continue; // Skip this D+ candidate if any daughter fails eta cut
counterDplusHadron++;

registry.fill(HIST("hDplusBin"), poolBin);
registry.fill(HIST("hPtCandMCGen"), particle1.pt());
registry.fill(HIST("hEtaMcGen"), particle1.eta());
registry.fill(HIST("hPhiMcGen"), RecoDecay::constrainAngle(particle1.phi(), -PIHalf));
registry.fill(HIST("hYMCGen"), yD);

// prompt and non-prompt division
bool isDplusPrompt = particle1.originMcGen() == RecoDecay::OriginType::Prompt;
bool isDplusNonPrompt = particle1.originMcGen() == RecoDecay::OriginType::NonPrompt;
if (isDplusPrompt) {
registry.fill(HIST("hPtCandMcGenPrompt"), particle1.pt());
} else if (isDplusNonPrompt) {
registry.fill(HIST("hPtCandMcGenNonPrompt"), particle1.pt());
}

// Dplus Hadron correlation dedicated section
// if it's a Dplus particle, search for Hadron and evaluate correlations
registry.fill(HIST("hcountDplustriggersMCGen"), 0, particle1.pt()); // to count trigger Dplus for normalisation)
Expand Down
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