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[PWGLF] Enhance histogram registration for reconstructed particles #13196

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Merged
njacazio merged 1 commit into from
Oct 1, 2025
Merged

[PWGLF] Enhance histogram registration for reconstructed particles #13196

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42 changes: 37 additions & 5 deletions PWGLF/Tasks/QC/systematicsMapping.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -98,9 +98,9 @@
registry.add("K/GeneratedPositive", "", HistType::kTHnSparseF, {ptAxis, etaAxis, phiAxis});
registry.add("K/GeneratedNegative", "", HistType::kTHnSparseF, {ptAxis, etaAxis, phiAxis});
registry.add("K0s/Generated", "", HistType::kTHnSparseF, {ptAxis, etaAxis, phiAxis});
registry.add("K/ReconstructedPositive", "", HistType::kTHnSparseF, {ptAxis, etaAxis, phiAxis});
registry.add("K/ReconstructedNegative", "", HistType::kTHnSparseF, {ptAxis, etaAxis, phiAxis});
registry.add("K0s/Reconstructed", "", HistType::kTHnSparseF, {ptAxis, etaAxis, phiAxis});
registry.add("K/ReconstructedPositive", "", HistType::kTHnSparseF, {ptAxis, etaAxis, phiAxis, nsigmaAxisTPC, nsigmaAxisTOF, tpcCrossedRowsAxis, itsClustersAxis, dcaXYAxis, dcaZAxis, chi2TPCAxis, chi2ITSAxis});
registry.add("K/ReconstructedNegative", "", HistType::kTHnSparseF, {ptAxis, etaAxis, phiAxis, nsigmaAxisTPC, nsigmaAxisTOF, tpcCrossedRowsAxis, itsClustersAxis, dcaXYAxis, dcaZAxis, chi2TPCAxis, chi2ITSAxis});
registry.add("K0s/Reconstructed", "", HistType::kTHnSparseF, {ptAxis, etaAxis, phiAxis, invariantMassBins, nsigmaAxisTPC, nsigmaAxisTOF, tpcCrossedRowsAxis, itsClustersAxis, dcaXYAxis, dcaZAxis, chi2TPCAxis, chi2ITSAxis});
}
}

Expand Down Expand Up @@ -165,6 +165,7 @@

void processMc(soa::Join<CollisionType, aod::McCollisionLabels> const& collisions,
soa::Join<TrackType, aod::McTrackLabels> const& tracks,
soa::Join<aod::V0Datas, aod::McV0Labels> const& v0s,
aod::McParticles const& particles,
aod::McCollisions const&)
{
Expand All @@ -187,16 +188,47 @@
continue;
switch (mcParticle.pdgCode()) {
case 321: // K+
registry.fill(HIST("K/ReconstructedPositive"), track.pt(), track.eta(), track.phi());
registry.fill(HIST("K/ReconstructedPositive"), track.pt(), track.eta(), track.phi(), track.tpcNSigmaKa(), track.tofNSigmaKa(), track.tpcNClsCrossedRows(), track.itsNCls(), track.dcaXY(), track.dcaZ(), track.tpcChi2NCl(), track.itsChi2NCl());
break;
case -321: // K-
registry.fill(HIST("K/ReconstructedNegative"), track.pt(), track.eta(), track.phi());
registry.fill(HIST("K/ReconstructedNegative"), track.pt(), track.eta(), track.phi(), track.tpcNSigmaKa(), track.tofNSigmaKa(), track.tpcNClsCrossedRows(), track.itsNCls(), track.dcaXY(), track.dcaZ(), track.tpcChi2NCl(), track.itsChi2NCl());
break;
default:
break;
}
}

for (const auto& v0 : v0s) {
if (v0.collisionId() != collision.globalIndex())
continue;
if (!v0.has_mcParticle())
continue;
const auto& mcParticle = v0.mcParticle();
if (mcParticle.mcCollisionId() != mcCollision.globalIndex())
continue;
if (!mcParticle.isPhysicalPrimary())
continue;
if (std::abs(mcParticle.pdgCode()) != 310)

Check failure on line 211 in PWGLF/Tasks/QC/systematicsMapping.cxx

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.

Check failure on line 211 in PWGLF/Tasks/QC/systematicsMapping.cxx

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
continue;
const auto& posTrack = v0.posTrack_as<TrackType>();
const auto& negTrack = v0.negTrack_as<TrackType>();
if (v0.v0radius() < v0radius ||
v0.v0cosPA() < v0cospa ||
std::abs(posTrack.eta()) > etadau ||
std::abs(negTrack.eta()) > etadau)
continue;

registry.fill(HIST("K0s/Reconstructed"), v0.pt(), v0.eta(), v0.phi(), v0.mK0Short() - constants::physics::MassK0Short,
std::max(posTrack.tpcNSigmaPi(), negTrack.tpcNSigmaPi()),
std::max(posTrack.tofNSigmaPi(), negTrack.tofNSigmaPi()),
std::min(posTrack.tpcNClsCrossedRows(), negTrack.tpcNClsCrossedRows()),
std::min(posTrack.itsNCls(), negTrack.itsNCls()),
std::min(posTrack.dcaXY(), negTrack.dcaXY()),
std::min(posTrack.dcaZ(), negTrack.dcaZ()),
std::min(posTrack.tpcChi2NCl(), negTrack.tpcChi2NCl()),
std::min(posTrack.itsChi2NCl(), negTrack.itsChi2NCl()));
}

for (const auto& particle : particles) {
if (particle.mcCollisionId() != mcCollision.globalIndex())
continue;
Expand Down
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