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[PWGLF] Lambda1405Analysis: Sigma eff vs. PV contrib + Sparse addition #16885

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[PWGLF] Lambda1405Analysis: Sigma eff vs. PV contrib + Sparse addition #16885

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e5ce652
Sigma eff vs. PV contrib + Sparse addition
Marcellocosti Jun 21, 2026
2670a50
Please consider the following formatting changes
alibuild Jul 1, 2026
0727975
Merge pull request #76 from alibuild/alibot-cleanup-16885
Marcellocosti Jul 1, 2026
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5 changes: 3 additions & 2 deletions PWGLF/DataModel/LFLambda1405Table.h
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Original file line number Diff line number Diff line change
Expand Up @@ -44,7 +44,7 @@
DECLARE_SOA_COLUMN(NSigmaTOFPiKink, nSigmaTOFPiKink, float); //! Number of sigmas for the pion candidate from Sigma kink in TOF
DECLARE_SOA_COLUMN(NSigmaTPCPrKink, nSigmaTPCPrKink, float); //! Number of sigmas for the proton candidate from Sigma kink in TPC
DECLARE_SOA_COLUMN(NSigmaTOFPrKink, nSigmaTOFPrKink, float); //! Number of sigmas for the proton candidate from Sigma kink in TOF
DECLARE_SOA_COLUMN(DCAKinkDauToPV, dcaKinkDauToPV, float); //! DCA of the kink daughter to the primary vertex

Check failure on line 47 in PWGLF/DataModel/LFLambda1405Table.h

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[name/o2-column] 

Use UpperCamelCase for names of O2 columns and matching lowerCamelCase names for their getters.
DECLARE_SOA_COLUMN(NSigmaTPCPiDau, nSigmaTPCPiDau, float); //! Number of sigmas for the lambda1405 pion daughter in TPC
DECLARE_SOA_COLUMN(NSigmaTOFPiDau, nSigmaTOFPiDau, float); //! Number of sigmas for the lambda1405 pion daughter in TOF

Expand Down Expand Up @@ -74,8 +74,9 @@

DECLARE_SOA_TABLE(Lambda1405Flow, "AOD", "LAMBDA1405FLOW",
o2::soa::Index<>,
lambda1405::Pt,
lambda1405::Mass, lambda1405::SigmaMinusMass, lambda1405::SigmaPlusMass,
lambda1405::Pt, lambda1405::Mass,
lambda1405::PtSigma,
lambda1405::SigmaMinusMass, lambda1405::SigmaPlusMass,
lambda1405::AlphaAPSigma, lambda1405::QtAPSigma,
lambda1405::NSigmaTPCPiKink, lambda1405::NSigmaTOFPiKink,
lambda1405::NSigmaTPCPrKink, lambda1405::NSigmaTOFPrKink,
Expand Down
97 changes: 74 additions & 23 deletions PWGLF/TableProducer/Common/kinkBuilder.cxx
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
// Copyright 2019-2020 CERN and copyright holders of ALICE O2.

Check failure on line 1 in PWGLF/TableProducer/Common/kinkBuilder.cxx

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[name/workflow-file] 

Name of a workflow file must match the name of the main struct in it (without the PWG prefix). (Class implementation files should be in "Core" directories.)
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
Expand Down Expand Up @@ -96,7 +96,10 @@
std::shared_ptr<TH2> hDCADaugToPV;
std::shared_ptr<TH2> hMothDecRad2;
std::shared_ptr<TH2> hGenCandidates;
std::shared_ptr<TH2> hRecCandidates;
std::shared_ptr<TH2> hGenDecayRadius;
std::shared_ptr<TH2> hRecCandidatesRecoPt;
std::shared_ptr<TH2> hRecCandidatesGenPt;
std::shared_ptr<TH2> hRecCandidatesDeltaPt;
std::array<std::shared_ptr<TH2>, NMatchedDecays> hGenPtKinkAngle;
std::array<std::shared_ptr<TH2>, NMatchedDecays> hRecPtKinkAngle;
} // namespace
Expand Down Expand Up @@ -362,21 +365,27 @@

if (doprocessMc || doprocessMcWCent) {
if (skipBkgCands) {
hRecCandidates = qaRegistry.add<TH2>("hRecCandidates", "hRecCandidates;Counts;", {HistType::kTH2F, {{NMatchedDecays, -0.5, static_cast<float>(NMatchedDecays) - 0.5}, absPtAxis}});
hRecCandidates->GetXaxis()->SetBinLabel(1, "#Sigma^{-} #rightarrow n#pi^{-}");
hRecCandidates->GetXaxis()->SetBinLabel(2, "#Sigma^{+} #rightarrow n#pi^{+}");
hRecCandidates->GetXaxis()->SetBinLabel(3, "#Sigma^{+} #rightarrow p#pi^{0}");
hRecCandidatesRecoPt = qaRegistry.add<TH2>("hRecCandidatesRecoPt", "hRecCandidates;Counts;Reco #it{p}_{T} (GeV/#it{c})", {HistType::kTH2F, {{NMatchedDecays, -0.5, static_cast<float>(NMatchedDecays) - 0.5}, absPtAxis}});
hRecCandidatesRecoPt->GetXaxis()->SetBinLabel(1, "#Sigma^{-} #rightarrow n#pi^{-}");
hRecCandidatesRecoPt->GetXaxis()->SetBinLabel(2, "#Sigma^{+} #rightarrow n#pi^{+}");
hRecCandidatesRecoPt->GetXaxis()->SetBinLabel(3, "#Sigma^{+} #rightarrow p#pi^{0}");
hRecCandidatesGenPt = qaRegistry.add<TH2>("hRecCandidatesGenPt", "hRecCandidatesGenPt;Counts;Gen #it{p}_{T} (GeV/#it{c})", {HistType::kTH2F, {{NMatchedDecays, -0.5, static_cast<float>(NMatchedDecays) - 0.5}, absPtAxis}});
hRecCandidatesGenPt->GetXaxis()->SetBinLabel(1, "#Sigma^{-} #rightarrow n#pi^{-}");
hRecCandidatesGenPt->GetXaxis()->SetBinLabel(2, "#Sigma^{+} #rightarrow n#pi^{+}");
hRecCandidatesGenPt->GetXaxis()->SetBinLabel(3, "#Sigma^{+} #rightarrow p#pi^{0}");
hRecCandidatesDeltaPt = qaRegistry.add<TH2>("hRecCandidatesDeltaPt", "hRecCandidatesDeltaPt;Counts;#Delta p_{T} (GeV/c)", {HistType::kTH2F, {{400, -0.5, 0.5}, absPtAxis}});
}
hGenCandidates = qaRegistry.add<TH2>("hGenCandidates", "hGenCandidates;Counts;", {HistType::kTH2F, {{NMatchedDecays, -0.5, static_cast<float>(NMatchedDecays) - 0.5}, absPtAxis}});
hGenDecayRadius = qaRegistry.add<TH2>("hGenDecayRadius", "hGenDecayRadius;Radius (cm); #it{p}_{T} (GeV/#it{c})", {HistType::kTH2F, {{300, 0, 30}, absPtAxis}});
hGenCandidates = qaRegistry.add<TH2>("hGenCandidates", "hGenCandidates;Counts;Gen #it{p}_{T} (GeV/#it{c})", {HistType::kTH2F, {{NMatchedDecays, -0.5, static_cast<float>(NMatchedDecays) - 0.5}, absPtAxis}});
hGenCandidates->GetXaxis()->SetBinLabel(1, "#Sigma^{-} #rightarrow n#pi^{-}");
hGenCandidates->GetXaxis()->SetBinLabel(2, "#Sigma^{+} #rightarrow n#pi^{+}");
hGenCandidates->GetXaxis()->SetBinLabel(3, "#Sigma^{+} #rightarrow p#pi^{0}");
hRecPtKinkAngle[SigmaMinusToPiMinusNeutron] = qaRegistry.add<TH2>("hRecPtKinkAngleSigmaMinusToPiMinusNeutron", "Rec Pt vs KinkAngle #Sigma^{-} #rightarrow #pi^{-}n;Counts;", {HistType::kTH2F, {absPtAxis, kinkAngleAxis}});
hRecPtKinkAngle[SigmaPlusToPiPlusNeutron] = qaRegistry.add<TH2>("hRecPtKinkAngleSigmaPlusToPiPlusNeutron", "Rec Pt vs KinkAngle #Sigma^{+} #rightarrow #pi^{+}n;Counts;", {HistType::kTH2F, {absPtAxis, kinkAngleAxis}});
hRecPtKinkAngle[SigmaPlusToProtonPi0] = qaRegistry.add<TH2>("hRecPtKinkAngleSigmaPlusToProtonPi0", "Rec Pt vs KinkAngle #Sigma^{+} #rightarrow p#pi^{0};Counts;", {HistType::kTH2F, {absPtAxis, kinkAngleAxis}});
hGenPtKinkAngle[SigmaMinusToPiMinusNeutron] = qaRegistry.add<TH2>("hGenPtKinkAngleSigmaMinusToPiMinusNeutron", "Gen Pt vs KinkAngle #Sigma^{-} #rightarrow #pi^{-}n;Counts;", {HistType::kTH2F, {absPtAxis, kinkAngleAxis}});
hGenPtKinkAngle[SigmaPlusToPiPlusNeutron] = qaRegistry.add<TH2>("hGenPtKinkAngleSigmaPlusToPiPlusNeutron", "Gen Pt vs KinkAngle #Sigma^{+} #rightarrow #pi^{+}n;Counts;", {HistType::kTH2F, {absPtAxis, kinkAngleAxis}});
hGenPtKinkAngle[SigmaPlusToProtonPi0] = qaRegistry.add<TH2>("hGenPtKinkAngleSigmaPlusToProtonPi0", "Gen Pt vs KinkAngle #Sigma^{+} #rightarrow p#pi^{0};Counts;", {HistType::kTH2F, {absPtAxis, kinkAngleAxis}});
hRecPtKinkAngle[SigmaMinusToPiMinusNeutron] = qaRegistry.add<TH2>("hRecPtKinkAngleSigmaMinusToPi", "Rec Pt vs KinkAngle #Sigma^{-} #rightarrow #pi^{-}n;Counts;", {HistType::kTH2F, {absPtAxis, kinkAngleAxis}});
hRecPtKinkAngle[SigmaPlusToPiPlusNeutron] = qaRegistry.add<TH2>("hRecPtKinkAngleSigmaPlusToPi", "Rec Pt vs KinkAngle #Sigma^{+} #rightarrow #pi^{+}n;Counts;", {HistType::kTH2F, {absPtAxis, kinkAngleAxis}});
hRecPtKinkAngle[SigmaPlusToProtonPi0] = qaRegistry.add<TH2>("hRecPtKinkAngleSigmaPlusToPr", "Rec Pt vs KinkAngle #Sigma^{+} #rightarrow p#pi^{0};Counts;", {HistType::kTH2F, {absPtAxis, kinkAngleAxis}});
hGenPtKinkAngle[SigmaMinusToPiMinusNeutron] = qaRegistry.add<TH2>("hGenPtKinkAngleSigmaMinusToPi", "Gen Pt vs KinkAngle #Sigma^{-} #rightarrow #pi^{-}n;Counts;", {HistType::kTH2F, {absPtAxis, kinkAngleAxis}});
hGenPtKinkAngle[SigmaPlusToPiPlusNeutron] = qaRegistry.add<TH2>("hGenPtKinkAngleSigmaPlusToPi", "Gen Pt vs KinkAngle #Sigma^{+} #rightarrow #pi^{+}n;Counts;", {HistType::kTH2F, {absPtAxis, kinkAngleAxis}});
hGenPtKinkAngle[SigmaPlusToProtonPi0] = qaRegistry.add<TH2>("hGenPtKinkAngleSigmaPlusToPr", "Gen Pt vs KinkAngle #Sigma^{+} #rightarrow p#pi^{0};Counts;", {HistType::kTH2F, {absPtAxis, kinkAngleAxis}});
}
}

Expand All @@ -402,12 +411,14 @@
return false;
hSelMotherQA->Fill(4.f, isPositive);

h2ItsClsMothBeforeSel->Fill(candidate.itsNCls(), candidate.itsNClsInnerBarrel());
if (candidate.itsNCls() >= nItsTotalLayers - 1)
int itsTotCls = static_cast<int>(candidate.itsNCls());
int itsIBCls = static_cast<int>(candidate.itsNClsInnerBarrel());
h2ItsClsMothBeforeSel->Fill(itsTotCls, itsIBCls);
if (itsTotCls >= nItsTotalLayers - 1)
return false;
hSelMotherQA->Fill(5.f, isPositive);

if (candidate.itsNClsInnerBarrel() != nItsInnerBarrelLayers)
if (itsIBCls != nItsInnerBarrelLayers)
return false;
hSelMotherQA->Fill(6.f, isPositive);

Expand Down Expand Up @@ -440,8 +451,10 @@
return false;
hSelDaugQA->Fill(3.f, isPositive);

h2ItsClsDaugBeforeSel->Fill(candidate.itsNCls(), candidate.itsNClsInnerBarrel());
if (candidate.itsNClsInnerBarrel() != 0)
int itsTotCls = static_cast<int>(candidate.itsNCls());
int itsIBCls = static_cast<int>(candidate.itsNClsInnerBarrel());
h2ItsClsDaugBeforeSel->Fill(itsTotCls, itsIBCls);
if (itsIBCls != 0)
return false;
hSelDaugQA->Fill(4.f, isPositive);

Expand All @@ -449,7 +462,7 @@
return false;
hSelDaugQA->Fill(5.f, isPositive);

if (candidate.tpcNClsCrossedRows() <= 0.8 * candidate.tpcNClsFindable())

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
return false;
hSelDaugQA->Fill(6.f, isPositive);

Expand Down Expand Up @@ -649,7 +662,7 @@
LOG(info) << "Task initialized for run " << mRunNumber << " with magnetic field " << mBz << " kZG";
}

template <typename TColls, typename TTracks, typename TAmbiTracks>
template <bool isMC, typename TColls, typename TTracks, typename TAmbiTracks>
void buildSvPool(const TColls& collisions, const TTracks& tracks, const TAmbiTracks& ambiguousTracks, const aod::BCs& bcs)
{
svCreator.clearPools();
Expand All @@ -660,8 +673,38 @@
continue;
}

bool isDaug = selectDaugTrack(track);
bool isMoth = selectMothTrack(track);
bool canBeMoth = true;
bool canBeDaug = true;

if constexpr (isMC) {
if (!track.has_mcParticle()) {
LOG(debug) << "Track has no MC particle";
canBeMoth = false;
canBeDaug = false;
continue;
}
auto genPart = track.template mcParticle_as<aod::McParticles>();

canBeMoth = std::find(
mothMatchPdgCodes.begin(),
mothMatchPdgCodes.end(),
std::abs(genPart.pdgCode())) != mothMatchPdgCodes.end();

canBeDaug = false;
for (auto mother : genPart.template mothers_as<aod::McParticles>()) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
if (std::find(
mothMatchPdgCodes.begin(),
mothMatchPdgCodes.end(),
std::abs(mother.pdgCode())) != mothMatchPdgCodes.end()) {
canBeDaug = true;
break;
}
}
}

bool isMoth = canBeMoth && selectMothTrack(track);
bool isDaug = canBeDaug && selectDaugTrack(track);

if (!isDaug && !isMoth) {
continue;
}
Expand All @@ -675,7 +718,7 @@
{
kinkCandidates.clear();

buildSvPool(collisions, tracks, ambiTracks, bcs);
buildSvPool<false>(collisions, tracks, ambiTracks, bcs);
auto& kinkPool = svCreator.getSVCandPool(collisions, !unlikeSignBkg);
bool isAccepted = false;
for (const auto& svCand : kinkPool) {
Expand Down Expand Up @@ -762,7 +805,12 @@
{
kinkCandidates.clear();

buildSvPool(mcRecoCollisions, tracksMc, ambiTracksMc, bcs);
if (skipBkgCands) {
buildSvPool<true>(mcRecoCollisions, tracksMc, ambiTracksMc, bcs);
} else {
buildSvPool<false>(mcRecoCollisions, tracksMc, ambiTracksMc, bcs);
}

auto& kinkPool = svCreator.getSVCandPool(mcRecoCollisions, !unlikeSignBkg);
for (const auto& svCand : kinkPool) {
// Perform matching of the kink candidate
Expand All @@ -787,7 +835,9 @@
if (decayChannel < 0) {
continue; // Skip candidates that do not match the decay channels of interest
}
hRecCandidates->Fill(decayChannel, trackMoth.pt()); // Decay channel match bin
hRecCandidatesRecoPt->Fill(decayChannel, trackMoth.pt()); // Decay channel match bin
hRecCandidatesGenPt->Fill(decayChannel, genMothPart.pt()); // Decay channel match bin
hRecCandidatesDeltaPt->Fill((trackMoth.pt() - genMothPart.pt()) / genMothPart.pt(), genMothPart.pt()); // Decay channel match bin
}
bool isAccepted = false;
buildKinkCand(svCand, tracksMc, isAccepted, mcRecoCollisions);
Expand Down Expand Up @@ -831,6 +881,7 @@
auto daughI = mcParticles.rawIteratorAt(arrDaughIdxs[iProng]);
if (std::abs(daughI.pdgCode()) == PDG_t::kPiPlus || std::abs(daughI.pdgCode()) == PDG_t::kProton) {
hGenPtKinkAngle[decayChannel]->Fill(mcPart.pt(), std::abs(mcPart.phi() - daughI.phi()) * radToDeg);
hGenDecayRadius->Fill(std::hypot(daughI.vx(), daughI.vy()), mcPart.pt());
}
}
}
Expand Down
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