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[PWGCF] FemtoUniverse V0 Task -- implemented bitmask for mc reco and fixed mc collision check for v0 mc in the producer #15136

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[PWGCF] FemtoUniverse V0 Task -- implemented bitmask for mc reco and fixed mc collision check for v0 mc in the producer #15136

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4de5554
implemented bitmask in mc reco
Feb 21, 2026
cedb67c
fixed reco collision check for mc v0
Feb 24, 2026
0037ca5
fixed cpp lint error
Feb 24, 2026
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1 change: 1 addition & 0 deletions PWGCF/FemtoUniverse/TableProducer/femtoUniverseProducerTask.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -2581,6 +2581,7 @@ struct FemtoUniverseProducerTask {
fillCascade<true>(col, groupedStrageParts, groupedTracks);
}
} else {
mcColIds.insert(col.mcCollisionId());
fillCollisionsAndTracksAndV0AndPhi<true>(col, groupedTracks, groupedStrageParts);
}
for (const auto& track : groupedTracks) {
Expand Down
126 changes: 93 additions & 33 deletions PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackV0Extended.cxx
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Expand Up @@ -58,6 +58,8 @@ struct FemtoUniversePairTaskTrackV0Extended {
using FemtoRecoParticles = soa::Join<aod::FDParticles, aod::FDExtParticles, aod::FDMCLabels, aod::FDExtMCParticles>;
Preslice<FemtoRecoParticles> perColMC = aod::femtouniverseparticle::fdCollisionId;

using FemtoBasicParticles = soa::Join<aod::FDParticles, aod::FDMCLabels>;

/// To apply narrow cut
Configurable<float> confZVertexCut{"confZVertexCut", 10.f, "Event sel: Maximum z-Vertex (cm)"};
Configurable<float> confEta{"confEta", 0.8, "Eta cut for the global track"};
Expand Down Expand Up @@ -1598,7 +1600,8 @@ struct FemtoUniversePairTaskTrackV0Extended {
}
PROCESS_SWITCH(FemtoUniversePairTaskTrackV0Extended, processPairFractionsMCTruthV0, "Process MC data to obtain pair fractions for V0V0 MC truth pairs", false);

void processMCReco(FemtoRecoParticles const& parts, aod::FdMCParticles const& mcparts)
template <class PartType>
void doMCReco(PartType const& parts, aod::FdMCParticles const& mcparts)
{
for (const auto& part : parts) {
auto mcPartId = part.fdMCParticleId();
Expand All @@ -1607,55 +1610,102 @@ struct FemtoUniversePairTaskTrackV0Extended {
const auto& mcpart = mcparts.iteratorAt(mcPartId);
//
if (part.partType() == aod::femtouniverseparticle::ParticleType::kV0) {
if (!invMLambda(part.mLambda(), part.mAntiLambda()))
continue;
if (mcpart.pdgMCTruth() == kLambda0) {
const auto& posChild = parts.iteratorAt(part.globalIndex() - 2);
const auto& negChild = parts.iteratorAt(part.globalIndex() - 1);
/// Daughters that do not pass this condition are not selected
if (isParticleTPC(posChild, 0) && isParticleTPC(negChild, 1)) {
registryMCreco.fill(HIST("plus/MCrecoLambda"), mcpart.pt(), mcpart.eta()); // lambda
if (auto mcpartIdChild = posChild.fdMCParticleId(); mcpartIdChild != -1) {
const auto& mcpartChild = mcparts.iteratorAt(mcpartIdChild);
registryMCreco.fill(HIST("plus/MCrecoLambdaChildPr"), mcpartChild.pt(), mcpartChild.eta()); // lambda proton child
}
if (auto mcpartIdChild = negChild.fdMCParticleId(); mcpartIdChild != -1) {
const auto& mcpartChild = mcparts.iteratorAt(mcpartIdChild);
registryMCreco.fill(HIST("plus/MCrecoLambdaChildPi"), mcpartChild.pt(), mcpartChild.eta()); // lambda pion child
const auto& posChild = parts.iteratorAt(part.globalIndex() - 2 - parts.begin().globalIndex());
const auto& negChild = parts.iteratorAt(part.globalIndex() - 1 - parts.begin().globalIndex());
if constexpr (std::experimental::is_detected<hasSigma, typename PartType::iterator>::value) {
/// Daughters that do not pass this condition are not selected
if (!isParticleTPC(posChild, 0) || !isParticleTPC(negChild, 1))
continue;

if (!isParticleTOF(posChild, 0) || !isParticleTOF(negChild, 1))
continue;

} else {
if ((posChild.pidCut() & (1u << 0)) == 0 || (negChild.pidCut() & (1u << 1)) == 0)
continue;

if (ConfV0Selection.confUseStrangenessTOF) {
if ((part.pidCut() & 3) != 3)
continue;
} else {
if ((posChild.pidCut() & (8u << 0)) == 0 || (negChild.pidCut() & (8u << 1)) == 0)
continue;
}
}
registryMCreco.fill(HIST("plus/MCrecoLambda"), mcpart.pt(), mcpart.eta()); // lambda

} else if (mcpart.pdgMCTruth() == kLambda0Bar) {
const auto& posChild = parts.iteratorAt(part.globalIndex() - 2);
const auto& negChild = parts.iteratorAt(part.globalIndex() - 1);
/// Daughters that do not pass this condition are not selected
if (isParticleTPC(posChild, 1) && isParticleTPC(negChild, 0)) {
registryMCreco.fill(HIST("minus/MCrecoLambda"), mcpart.pt(), mcpart.eta()); // anti-lambda
if (auto mcpartIdChild = posChild.fdMCParticleId(); mcpartIdChild != -1) {
const auto& mcpartChild = mcparts.iteratorAt(mcpartIdChild);
registryMCreco.fill(HIST("minus/MCrecoLambdaChildPi"), mcpartChild.pt(), mcpartChild.eta()); // anti-lambda pion child
}
if (auto mcpartIdChild = negChild.fdMCParticleId(); mcpartIdChild != -1) {
const auto& mcpartChild = mcparts.iteratorAt(mcpartIdChild);
registryMCreco.fill(HIST("minus/MCrecoLambdaChildPr"), mcpartChild.pt(), mcpartChild.eta()); // anti-lambda proton child
const auto& posChild = parts.iteratorAt(part.globalIndex() - 2 - parts.begin().globalIndex());
const auto& negChild = parts.iteratorAt(part.globalIndex() - 1 - parts.begin().globalIndex());
if constexpr (std::experimental::is_detected<hasSigma, typename PartType::iterator>::value) {
/// Daughters that do not pass this condition are not selected
if (!isParticleTPC(posChild, 1) || !isParticleTPC(negChild, 0))
continue;

if (!isParticleTOF(posChild, 1) || !isParticleTOF(negChild, 0))
continue;

} else {
if ((posChild.pidCut() & (1u << 1)) == 0 || (negChild.pidCut() & (1u << 0)) == 0)
continue;

if (ConfV0Selection.confUseStrangenessTOF) {
if ((part.pidCut() & 12) != 12)
continue;
} else {
if ((posChild.pidCut() & (8u << 1)) == 0 || (negChild.pidCut() & (8u << 0)) == 0)
continue;
}
}
registryMCreco.fill(HIST("minus/MCrecoLambda"), mcpart.pt(), mcpart.eta()); // anti-lambda
}
} else if (part.partType() == aod::femtouniverseparticle::ParticleType::kTrack) {
if (part.sign() > 0) {
if (part.mAntiLambda() > 0) { // mAntiLambda is the sign here
registryMCreco.fill(HIST("plus/MCrecoAllPt"), mcpart.pt());
if (mcpart.pdgMCTruth() == kPiPlus && isNSigmaCombined(part.p(), aod::pidtpc_tiny::binning::unPackInTable(part.tpcNSigmaStorePi()), aod::pidtof_tiny::binning::unPackInTable(part.tofNSigmaStorePi()))) {
if (mcpart.pdgMCTruth() == kPiPlus) {
if constexpr (std::experimental::is_detected<hasSigma, typename PartType::iterator>::value) {
if (!isNSigmaCombined(part.p(), aod::pidtpc_tiny::binning::unPackInTable(part.tpcNSigmaStorePi()), aod::pidtof_tiny::binning::unPackInTable(part.tofNSigmaStorePi())))
continue;
} else {
if ((part.pidCut() & 128u) == 0) // 128 for pion combined
continue;
}
registryMCreco.fill(HIST("plus/MCrecoPi"), mcpart.pt(), mcpart.eta());
registryMCreco.fill(HIST("plus/MCrecoPiPt"), mcpart.pt());
} else if (mcpart.pdgMCTruth() == kProton && isNSigmaCombined(part.p(), aod::pidtpc_tiny::binning::unPackInTable(part.tpcNSigmaStorePr()), aod::pidtof_tiny::binning::unPackInTable(part.tofNSigmaStorePr()))) {
} else if (mcpart.pdgMCTruth() == kProton) {
if constexpr (std::experimental::is_detected<hasSigma, typename PartType::iterator>::value) {
if (!isNSigmaCombined(part.p(), aod::pidtpc_tiny::binning::unPackInTable(part.tpcNSigmaStorePr()), aod::pidtof_tiny::binning::unPackInTable(part.tofNSigmaStorePr())))
continue;
} else {
if ((part.pidCut() & 64u) == 0) // 64 for proton combined
continue;
}
registryMCreco.fill(HIST("plus/MCrecoPr"), mcpart.pt(), mcpart.eta());
registryMCreco.fill(HIST("plus/MCrecoPrPt"), mcpart.pt());
}
}

if (part.sign() < 0) {
} else if (part.mAntiLambda() < 0) {
registryMCreco.fill(HIST("minus/MCrecoAllPt"), mcpart.pt());
if (mcpart.pdgMCTruth() == kPiMinus && isNSigmaCombined(part.p(), aod::pidtpc_tiny::binning::unPackInTable(part.tpcNSigmaStorePi()), aod::pidtof_tiny::binning::unPackInTable(part.tofNSigmaStorePi()))) {
if (mcpart.pdgMCTruth() == kPiMinus) {
if constexpr (std::experimental::is_detected<hasSigma, typename PartType::iterator>::value) {
if (!isNSigmaCombined(part.p(), aod::pidtpc_tiny::binning::unPackInTable(part.tpcNSigmaStorePi()), aod::pidtof_tiny::binning::unPackInTable(part.tofNSigmaStorePi())))
continue;
} else {
if ((part.pidCut() & 128u) == 0) // 128 for pion combined
continue;
}
registryMCreco.fill(HIST("minus/MCrecoPi"), mcpart.pt(), mcpart.eta());
registryMCreco.fill(HIST("minus/MCrecoPiPt"), mcpart.pt());
} else if (mcpart.pdgMCTruth() == kProtonBar && isNSigmaCombined(part.p(), aod::pidtpc_tiny::binning::unPackInTable(part.tpcNSigmaStorePr()), aod::pidtof_tiny::binning::unPackInTable(part.tofNSigmaStorePr()))) {
} else if (mcpart.pdgMCTruth() == kProtonBar) {
if constexpr (std::experimental::is_detected<hasSigma, typename PartType::iterator>::value) {
if (!isNSigmaCombined(part.p(), aod::pidtpc_tiny::binning::unPackInTable(part.tpcNSigmaStorePr()), aod::pidtof_tiny::binning::unPackInTable(part.tofNSigmaStorePr())))
continue;
} else {
if ((part.pidCut() & 64u) == 0) // 64 for proton combined
continue;
}
registryMCreco.fill(HIST("minus/MCrecoPr"), mcpart.pt(), mcpart.eta());
registryMCreco.fill(HIST("minus/MCrecoPrPt"), mcpart.pt());
}
Expand All @@ -1664,7 +1714,17 @@ struct FemtoUniversePairTaskTrackV0Extended {
}
}

void processMCReco(FemtoRecoParticles const& parts, aod::FdMCParticles const& mcparts)
{
doMCReco(parts, mcparts);
}
PROCESS_SWITCH(FemtoUniversePairTaskTrackV0Extended, processMCReco, "Process MC reco data", false);

void processMCRecoBitmask(FemtoBasicParticles const& parts, aod::FdMCParticles const& mcparts)
{
doMCReco(parts, mcparts);
}
PROCESS_SWITCH(FemtoUniversePairTaskTrackV0Extended, processMCRecoBitmask, "Process MC reco data using bitmask for PID", false);
};

WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
Expand Down
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