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[ALICE3] Revert usage of Trk PID in D meson chain #15642

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Merged
njacazio merged 2 commits into from
Apr 3, 2026
Merged

[ALICE3] Revert usage of Trk PID in D meson chain #15642

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1e9399d
Revert usage of Trk PID in D meson chain
njacazio Apr 3, 2026
42f5596
Please consider the following formatting changes to #15642 (#15643)
alibuild Apr 3, 2026
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18 changes: 9 additions & 9 deletions ALICE3/TableProducer/alice3-decayfinder.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,8 @@
// #define bitcheck(var, nbit) ((var) & (static_cast<uint32_t>(1) << (nbit)))

// For MC association in pre-selection
using Alice3TracksWPid = soa::Join<aod::Tracks, aod::TracksCov, aod::Alice3DecayMaps, aod::McTrackLabels, aod::TracksDCA, aod::UpgradeTrkPids, aod::UpgradeTofs, aod::UpgradeRichs>;
using Alice3TracksWPid = soa::Join<aod::Tracks, aod::TracksCov, aod::Alice3DecayMaps, aod::McTrackLabels, aod::TracksDCA, aod::UpgradeTofs, aod::UpgradeRichs>;
using Alice3TracksWTrkPid = soa::Join<Alice3TracksWPid, aod::UpgradeTrkPids>;

struct alice3decayFinder {
SliceCache cache;
Expand Down Expand Up @@ -153,10 +154,10 @@

HistogramRegistry histos{"histos", {}, OutputObjHandlingPolicy::AnalysisObject};

Partition<aod::McParticles> trueD = aod::mcparticle::pdgCode == 421;

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
Partition<aod::McParticles> trueDbar = aod::mcparticle::pdgCode == -421;

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
Partition<aod::McParticles> trueLc = aod::mcparticle::pdgCode == 4122;

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
Partition<aod::McParticles> trueLcbar = aod::mcparticle::pdgCode == -4122;

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.

// filter expressions for D mesons
static constexpr uint32_t trackSelectionPiPlusFromD = 1 << kInnerTOFPion | 1 << kOuterTOFPion | 1 << kRICHPion | 1 << kTruePiPlusFromD;
Expand Down Expand Up @@ -185,18 +186,17 @@
((aod::a3DecayMap::decayMap & trackSelectionKaMinusFromD) == trackSelectionKaMinusFromD) && aod::track::signed1Pt < 0.0f && nabs(aod::track::dcaXY) > kaFromD_dcaXYconstant + kaFromD_dcaXYpTdep* nabs(aod::track::signed1Pt);

// partitions for Lc baryons
Partition<Alice3TracksWPid> tracksPiPlusFromLc =
Partition<Alice3TracksWTrkPid> tracksPiPlusFromLc =
((aod::a3DecayMap::decayMap & trackSelectionPiPlusFromLc) == trackSelectionPiPlusFromLc) && aod::track::signed1Pt > 0.0f && nabs(aod::track::dcaXY) > piFromLc_dcaXYconstant + piFromLc_dcaXYpTdep* nabs(aod::track::signed1Pt);
Partition<Alice3TracksWPid> tracksKaPlusFromLc =
Partition<Alice3TracksWTrkPid> tracksKaPlusFromLc =
((aod::a3DecayMap::decayMap & trackSelectionKaPlusFromLc) == trackSelectionKaPlusFromLc) && aod::track::signed1Pt > 0.0f && nabs(aod::track::dcaXY) > kaFromLc_dcaXYconstant + kaFromLc_dcaXYpTdep* nabs(aod::track::signed1Pt);
Partition<Alice3TracksWPid> tracksPrPlusFromLc =
Partition<Alice3TracksWTrkPid> tracksPrPlusFromLc =
((aod::a3DecayMap::decayMap & trackSelectionPrPlusFromLc) == trackSelectionPrPlusFromLc) && aod::track::signed1Pt > 0.0f && nabs(aod::track::dcaXY) > prFromLc_dcaXYconstant + prFromLc_dcaXYpTdep* nabs(aod::track::signed1Pt);
// partitions for Lc baryons
Partition<Alice3TracksWPid> tracksPiMinusFromLc =
Partition<Alice3TracksWTrkPid> tracksPiMinusFromLc =
((aod::a3DecayMap::decayMap & trackSelectionPiMinusFromLc) == trackSelectionPiMinusFromLc) && aod::track::signed1Pt < 0.0f && nabs(aod::track::dcaXY) > piFromLc_dcaXYconstant + piFromLc_dcaXYpTdep* nabs(aod::track::signed1Pt);
Partition<Alice3TracksWPid> tracksKaMinusFromLc =
Partition<Alice3TracksWTrkPid> tracksKaMinusFromLc =
((aod::a3DecayMap::decayMap & trackSelectionKaMinusFromLc) == trackSelectionKaMinusFromLc) && aod::track::signed1Pt < 0.0f && nabs(aod::track::dcaXY) > kaFromLc_dcaXYconstant + kaFromLc_dcaXYpTdep* nabs(aod::track::signed1Pt);
Partition<Alice3TracksWPid> tracksPrMinusFromLc =
Partition<Alice3TracksWTrkPid> tracksPrMinusFromLc =
((aod::a3DecayMap::decayMap & trackSelectionPrMinusFromLc) == trackSelectionPrMinusFromLc) && aod::track::signed1Pt < 0.0f && nabs(aod::track::dcaXY) > prFromLc_dcaXYconstant + prFromLc_dcaXYpTdep* nabs(aod::track::signed1Pt);

// Helper struct to pass candidate information
Expand Down Expand Up @@ -286,12 +286,12 @@
dmeson.Ndaug[2] = negP[2];

// return mass and kinematic variables
dmeson.mass = RecoDecay::m(array{array{posP[0], posP[1], posP[2]}, array{negP[0], negP[1], negP[2]}}, array{posMass, negMass});

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[std-prefix] 

Use std:: prefix for names from the std namespace.
dmeson.pt = std::hypot(posP[0] + negP[0], posP[1] + negP[1]);
dmeson.ptdaugPos = std::hypot(posP[0], posP[1]);
dmeson.ptdaugNeg = std::hypot(negP[0], negP[1]);
dmeson.phi = RecoDecay::phi(array{posP[0] + negP[0], posP[1] + negP[1]});

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[std-prefix] 

Use std:: prefix for names from the std namespace.
dmeson.eta = RecoDecay::eta(array{posP[0] + negP[0], posP[1] + negP[1], posP[2] + negP[2]});

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[std-prefix] 

Use std:: prefix for names from the std namespace.
dmeson.y = RecoDecay::y(std::array{posP[0] + negP[0], posP[1] + negP[1], posP[2] + negP[2]}, dmeson.mass);
const auto posSV = fitter2prongs.getPCACandidate();
dmeson.posSV[0] = posSV[0];
Expand Down Expand Up @@ -408,14 +408,14 @@
mCandidate3Prong.errorImpactParameterZ2 = impactParameter2.getSigmaZ2();

// return mass
mCandidate3Prong.mass = RecoDecay::m(array{array{P0[0], P0[1], P0[2]},

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[std-prefix] 

Use std:: prefix for names from the std namespace.
array{P1[0], P1[1], P1[2]},
array{P2[0], P2[1], P2[2]}},
daughtersMasses3Prong);

mCandidate3Prong.pt = std::hypot(P0[0] + P1[0] + P2[0], P0[1] + P1[1] + P2[1]);
mCandidate3Prong.phi = RecoDecay::phi(array{P0[0] + P1[0] + P2[0], P0[1] + P1[1] + P2[1]});

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[std-prefix] 

Use std:: prefix for names from the std namespace.
mCandidate3Prong.eta = RecoDecay::eta(array{P0[0] + P1[0] + P2[0], P0[1] + P1[1] + P2[1], P0[2] + P1[2] + P2[2]});

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[std-prefix] 

Use std:: prefix for names from the std namespace.
mCandidate3Prong.Pdaug0[0] = P0[0];
mCandidate3Prong.Pdaug0[1] = P0[1];
mCandidate3Prong.Pdaug0[2] = P0[2];
Expand Down Expand Up @@ -1068,7 +1068,7 @@

void processFindLc(aod::Collision const& collision,
aod::McParticles const& mcParticles,
Alice3TracksWPid const& tracks)
Alice3TracksWTrkPid const& tracks)
{
LOG(debug) << "Processing Lc candidates for collision " << collision.globalIndex() << " with " << tracks.size() << " tracks";
for (auto const& track : tracks) {
Expand Down
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