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[PWGLF] Adapt cascadeMLSelectionTreeCreator to derived MC and fix MC signal selection #18364

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Merged
romainschotter merged 3 commits into from
Oct 20, 2026
Merged

[PWGLF] Adapt cascadeMLSelectionTreeCreator to derived MC and fix MC signal selection #18364

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a587e10
[PWGLF] Adapt cascadeMLSelectionTreeCreator to derived MC data
IgorPtak Oct 19, 2026
392fe8a
[PWGLF] CascadeMLSelectionTreeCreator: abs() on daughter DCA cuts + b…
IgorPtak Oct 20, 2026
e279eb9
fix MegaLinter errors
IgorPtak Oct 20, 2026
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4 changes: 4 additions & 0 deletions PWGLF/DataModel/LFStrangenessMLTables.h
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Original file line number Diff line number Diff line change
Expand Up @@ -180,6 +180,8 @@ DECLARE_SOA_COLUMN(DCACascDaughters, dcaCascDaughters, float);
DECLARE_SOA_COLUMN(DCAv0topv, dcav0topv, float);
DECLARE_SOA_COLUMN(V0PA, v0PA, float);
DECLARE_SOA_COLUMN(CascPA, cascPA, float);
DECLARE_SOA_COLUMN(BachBaryonCosPA, bachBaryonCosPA, float);
DECLARE_SOA_COLUMN(BachBaryonDCAxyToPV, bachBaryonDCAxyToPV, float);

DECLARE_SOA_COLUMN(IsXiMinus, isXiMinus, bool);
DECLARE_SOA_COLUMN(IsXiPlus, isXiPlus, bool);
Expand Down Expand Up @@ -231,6 +233,8 @@ DECLARE_SOA_TABLE(CascMLCandidates, "AOD", "CAMLCANDIDATES",
cascmlcandidates::DCAv0topv,
cascmlcandidates::V0PA,
cascmlcandidates::CascPA,
cascmlcandidates::BachBaryonCosPA,
cascmlcandidates::BachBaryonDCAxyToPV,
cascmlcandidates::IsXiMinus,
cascmlcandidates::IsXiPlus,
cascmlcandidates::IsOmegaMinus,
Expand Down
66 changes: 43 additions & 23 deletions PWGLF/TableProducer/Strangeness/cascadeMLSelectionTreeCreator.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -139,13 +139,15 @@ struct cascadeMLSelectionTreeCreator {
float dcav0topv;
float v0CosPA;
float cascCosPA;
float bachBaryonCosPA;
float bachBaryonDCAxyToPV;

// reserved for MC operation
bool isXiMinus;
bool isXiPlus;
bool isOmegaMinus;
bool isOmegaPlus;
} cascadeCandidate;
} cascadeCandidate{};

// Process candidate and store properties in object
template <typename TCollision, typename TCascObject>
Expand All @@ -161,10 +163,10 @@ struct cascadeMLSelectionTreeCreator {
// Track quality
cascadeCandidate.posITSCls = posTrackExtra.itsNCls();
cascadeCandidate.negITSCls = negTrackExtra.itsNCls();
cascadeCandidate.bachITSCls = negTrackExtra.itsNCls();
cascadeCandidate.bachITSCls = bachTrackExtra.itsNCls();
cascadeCandidate.posITSClsSizes = posTrackExtra.itsClusterSizes();
cascadeCandidate.negITSClsSizes = negTrackExtra.itsClusterSizes();
cascadeCandidate.bachITSClsSizes = negTrackExtra.itsClusterSizes();
cascadeCandidate.bachITSClsSizes = bachTrackExtra.itsClusterSizes();
cascadeCandidate.posTPCRows = posTrackExtra.tpcCrossedRows();
cascadeCandidate.negTPCRows = negTrackExtra.tpcCrossedRows();
cascadeCandidate.bachTPCRows = bachTrackExtra.tpcCrossedRows();
Expand Down Expand Up @@ -207,43 +209,59 @@ struct cascadeMLSelectionTreeCreator {
cascadeCandidate.dcav0topv = cand.dcav0topv(coll.posX(), coll.posY(), coll.posZ());
cascadeCandidate.v0CosPA = cand.v0cosPA(coll.posX(), coll.posY(), coll.posZ());
cascadeCandidate.cascCosPA = cand.casccosPA(coll.posX(), coll.posY(), coll.posZ());
cascadeCandidate.bachBaryonCosPA = cand.bachBaryonCosPA();
cascadeCandidate.bachBaryonDCAxyToPV = cand.bachBaryonDCAxyToPV();

// MC flags
cascadeCandidate.isXiMinus = false;
cascadeCandidate.isXiPlus = false;
cascadeCandidate.isOmegaMinus = false;
cascadeCandidate.isOmegaPlus = false;

if constexpr (requires { cand.pdgCode(); }) {
cascadeCandidate.isXiMinus = (cand.pdgCode() == 3312);
cascadeCandidate.isXiPlus = (cand.pdgCode() == -3312);
cascadeCandidate.isOmegaMinus = (cand.pdgCode() == 3334);
cascadeCandidate.isOmegaPlus = (cand.pdgCode() == -3334);
if constexpr (requires { cand.has_cascMCCore(); }) {
if (cand.has_cascMCCore()) {
auto cascMC = cand.template cascMCCore_as<soa::Join<aod::CascMCCores, aod::CascMCCollRefs>>();
cascadeCandidate.isXiMinus = (cascMC.pdgCode() == 3312);
cascadeCandidate.isXiPlus = (cascMC.pdgCode() == -3312);
cascadeCandidate.isOmegaMinus = (cascMC.pdgCode() == 3334);
cascadeCandidate.isOmegaPlus = (cascMC.pdgCode() == -3334);
}
}

// base topological selections
if (cascadeCandidate.v0CosPA < v0setting_cospa)
if (cascadeCandidate.v0CosPA < v0setting_cospa) {
return;
if (cascadeCandidate.dcaV0Daughters > v0setting_dcav0dau)
}
if (cascadeCandidate.dcaV0Daughters > v0setting_dcav0dau) {
return;
if (cascadeCandidate.dcapostopv < v0setting_dcapostopv)
}
if (std::abs(cascadeCandidate.dcapostopv) < v0setting_dcapostopv) {
return;
if (cascadeCandidate.dcapostopv < v0setting_dcanegtopv)
}
if (std::abs(cascadeCandidate.dcanegtopv) < v0setting_dcanegtopv) {
return;
if (cascadeCandidate.dcabachtopv < cascadesetting_dcabachtopv)
}
if (std::abs(cascadeCandidate.dcabachtopv) < cascadesetting_dcabachtopv) {
return;
if (cascadeCandidate.v0radius < v0setting_radius)
}
if (cascadeCandidate.v0radius < v0setting_radius) {
return;
if (cascadeCandidate.cascCosPA < cascadesetting_cospa)
}
if (cascadeCandidate.cascCosPA < cascadesetting_cospa) {
return;
if (cascadeCandidate.dcaCascDaughters > cascadesetting_dcacascdau)
}
if (cascadeCandidate.dcaCascDaughters > cascadesetting_dcacascdau) {
return;
if (cascadeCandidate.cascradius < cascadesetting_cascradius)
}
if (cascadeCandidate.cascradius < cascadesetting_cascradius) {
return;
if (std::abs(cascadeCandidate.mLambdaDaughter - 1.116) > cascadesetting_v0masswindow)
}
if (std::abs(cascadeCandidate.mLambdaDaughter - 1.116) > cascadesetting_v0masswindow) {
return;
if (cascadeCandidate.dcav0topv < cascadesetting_mindcav0topv)
}
if (cascadeCandidate.dcav0topv < cascadesetting_mindcav0topv) {
return;
}

// Mass window selections
cascadeCandidate.massWindows = 0;
Expand Down Expand Up @@ -312,6 +330,8 @@ struct cascadeMLSelectionTreeCreator {
cascadeCandidate.dcav0topv,
TMath::ACos(cascadeCandidate.v0CosPA),
TMath::ACos(cascadeCandidate.cascCosPA),
cascadeCandidate.bachBaryonCosPA,
cascadeCandidate.bachBaryonDCAxyToPV,

// MC identity
cascadeCandidate.isXiMinus,
Expand All @@ -320,17 +340,17 @@ struct cascadeMLSelectionTreeCreator {
cascadeCandidate.isOmegaPlus);
}

void processRealData(soa::Join<aod::StraCollisions, aod::StraCents>::iterator const& coll, soa::Join<aod::CascCores, aod::CascCollRefs, aod::CascExtras, aod::CascTOFNSigmas> const& cascades, dauTracks const&)
void processRealData(soa::Join<aod::StraCollisions, aod::StraCents>::iterator const& coll, soa::Join<aod::CascCores, aod::CascCollRefs, aod::CascExtras, aod::CascBBs, aod::CascTOFNSigmas> const& cascades, dauTracks const&)
{
histos.fill(HIST("hEventCentrality"), coll.centFT0C());
for (auto& casc : cascades) { // looping over lambdas
for (const auto& casc : cascades) { // looping over cascades
processCandidate(coll, casc);
}
}
void processSimData(soa::Join<aod::StraCollisions, aod::StraCents>::iterator const& coll, soa::Join<aod::CascCores, aod::CascCollRefs, aod::CascExtras, aod::CascMCDatas, aod::CascTOFNSigmas> const& cascades, dauTracks const&)
void processSimData(soa::Join<aod::StraCollisions, aod::StraCents>::iterator const& coll, soa::Join<aod::CascCores, aod::CascCollRefs, aod::CascExtras, aod::CascBBs, aod::CascCoreMCLabels, aod::CascTOFNSigmas> const& cascades, dauTracks const&, soa::Join<aod::CascMCCores, aod::CascMCCollRefs> const&)
{
histos.fill(HIST("hEventCentrality"), coll.centFT0C());
for (auto& casc : cascades) { // looping over lambdas
for (const auto& casc : cascades) { // looping over cascades
processCandidate(coll, casc);
}
}
Expand Down
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