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[PWGLF] Fix mc info matching bugs in hypertriton kink analysis #12829

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Merged
mpuccio merged 1 commit into from
Sep 2, 2025
Merged

[PWGLF] Fix mc info matching bugs in hypertriton kink analysis #12829

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31 changes: 18 additions & 13 deletions PWGLF/TableProducer/Nuspex/hyperkinkRecoTask.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -369,8 +369,6 @@ struct HyperkinkRecoTask {
Service<o2::ccdb::BasicCCDBManager> ccdb;
o2::base::Propagator::MatCorrType matCorr = o2::base::Propagator::MatCorrType::USEMatCorrLUT;

std::vector<int> mcPartIndices;

// Histograms are defined with HistogramRegistry
HistogramRegistry registry{"registry", {}};

Expand Down Expand Up @@ -590,17 +588,17 @@ struct HyperkinkRecoTask {
auto motherTrackPar = getTrackParCov(trackMoth);
o2::dataformats::VertexBase primaryVtx = {{collision.posX(), collision.posY(), collision.posZ()}, {collision.covXX(), collision.covXY(), collision.covYY(), collision.covXZ(), collision.covYZ(), collision.covZZ()}};
std::array<float, 3> pMotherPv = {-999.f};
std::array<float, 3> updatePMotherPv = {-999.f};
if (o2::base::Propagator::Instance()->propagateToDCABxByBz(primaryVtx, motherTrackPar, 2.f, o2::base::Propagator::MatCorrType::USEMatCorrLUT)) {
motherTrackPar.getPxPyPzGlo(pMotherPv);
if (motherTrackPar.update(primaryVtx)) {
motherTrackPar.getPxPyPzGlo(updatePMotherPv);
}
}

hypkinkCand.momMothPV[0] = pMotherPv[0];
hypkinkCand.momMothPV[1] = pMotherPv[1];
hypkinkCand.momMothPV[2] = pMotherPv[2];

std::array<float, 3> updatePMotherPv = {-999.f};
if (motherTrackPar.update(primaryVtx)) {
motherTrackPar.getPxPyPzGlo(updatePMotherPv);
}
hypkinkCand.updateMomMothPV[0] = updatePMotherPv[0];
hypkinkCand.updateMomMothPV[1] = updatePMotherPv[1];
hypkinkCand.updateMomMothPV[2] = updatePMotherPv[2];
Expand Down Expand Up @@ -714,23 +712,27 @@ struct HyperkinkRecoTask {

void processMC(MCLabeledCollisionsFull const& collisions, aod::KinkCands const& KinkCands, MCLabeledTracksIU const& tracks, aod::McParticles const& particlesMC, aod::McCollisions const& mcCollisions, aod::BCsWithTimestamps const&)
{
mcPartIndices.clear();
std::vector<int64_t> mcPartIndices;
setTrackIDForMC(mcPartIndices, particlesMC, tracks);
std::vector<int64_t> signalIndicesPool;
std::vector<bool> isReconstructedMCCollisions(mcCollisions.size(), false);
std::vector<bool> isSelectedMCCollisions(mcCollisions.size(), false);
std::vector<bool> isGoodCollisions(collisions.size(), false);
std::vector<int> dauIDList(2, -1);

for (const auto& collision : collisions) {
isReconstructedMCCollisions[collision.mcCollisionId()] = true;
if (collision.has_mcCollision()) {
isReconstructedMCCollisions[collision.mcCollisionId()] = true;
}
registry.fill(HIST("hEventCounter"), 0);
if (doEventCut && (!collision.selection_bit(aod::evsel::kIsTriggerTVX) || !collision.selection_bit(aod::evsel::kNoTimeFrameBorder) || std::abs(collision.posZ()) > maxZVertex)) {
continue;
}
registry.fill(HIST("hEventCounter"), 1);
registry.fill(HIST("hVertexZCollision"), collision.posZ());
isSelectedMCCollisions[collision.mcCollisionId()] = true;
if (collision.has_mcCollision()) {
isSelectedMCCollisions[collision.mcCollisionId()] = true;
}
isGoodCollisions[collision.globalIndex()] = true;
}

Expand Down Expand Up @@ -883,7 +885,7 @@ struct HyperkinkRecoTask {
hypkinkCand.isSignal = true;
hypkinkCand.isSignalReco = true;
fillCandidateMCInfo(hypkinkCand, mcMothTrack, mcDaugTrack, mcNeutTrack);
mcPartIndices.push_back(mcMothTrack.globalIndex());
signalIndicesPool.push_back(mcMothTrack.globalIndex());

std::array<float, 2> dcaInfo;
auto mcMothTrackPar = getTrackParFromMC(mcMothTrack, 2);
Expand Down Expand Up @@ -934,7 +936,7 @@ struct HyperkinkRecoTask {
continue;
}

if (std::find(mcPartIndices.begin(), mcPartIndices.end(), mcparticle.globalIndex()) != mcPartIndices.end()) {
if (std::find(signalIndicesPool.begin(), signalIndicesPool.end(), mcparticle.globalIndex()) != signalIndicesPool.end()) {
continue;
}

Expand Down Expand Up @@ -1243,13 +1245,16 @@ struct HyperkinkQa {
setTrackIDForMC(mcPartIndices, particlesMC, tracks);
std::vector<bool> isSelectedMCCollisions(mcCollisions.size(), false);
std::vector<int> dauIDList(2, -1);

for (const auto& collision : collisions) {
genQAHist.fill(HIST("hCollCounter"), 0.5);
if (doEventCut && (!collision.selection_bit(aod::evsel::kIsTriggerTVX) || !collision.selection_bit(aod::evsel::kNoTimeFrameBorder) || std::abs(collision.posZ()) > maxZVertex)) {
continue;
}
genQAHist.fill(HIST("hCollCounter"), 1.5);
isSelectedMCCollisions[collision.mcCollisionId()] = true;
if (collision.has_mcCollision()) {
isSelectedMCCollisions[collision.mcCollisionId()] = true;
}
}

for (const auto& mcCollision : mcCollisions) {
Expand Down
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