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Merged
romainschotter merged 5 commits into from
Aug 6, 2025
Merged

[PWGLF] Change in Derivedcascadeanalysis #12450

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480f2ec
pO settings, correlation cut
Aug 5, 2025
95413a1
dummy
Aug 5, 2025
909c391
fix
Aug 6, 2025
8cfa1c3
fix some of the O2 linter errors
Aug 6, 2025
8aaf0db
fix formating
Aug 6, 2025
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59 changes: 45 additions & 14 deletions PWGLF/Tasks/Strangeness/derivedcascadeanalysis.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -49,12 +49,12 @@
#include <TFile.h>
#include <TH2F.h>
#include <TProfile.h>
#include <TLorentzVector.h>

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[root/lorentz-vector] 

Do not use the TLorentzVector legacy class. Use std::array with RecoDecay methods or the ROOT::Math::LorentzVector template instead.
#include <TPDGCode.h>

// constants
const float ctauxiPDG = 4.91; // from PDG

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
const float ctauomegaPDG = 2.461; // from PDG

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[pdg/explicit-code] 

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

using namespace o2;
using namespace o2::framework;
Expand All @@ -76,6 +76,7 @@
ConfigurableAxis axisIR{"axisIR", {510, -1, 50}, "Binning for the interaction rate (kHz)"};

Configurable<bool> isXi{"isXi", 1, "Apply cuts for Xi identification"};
Configurable<bool> ispO{"ispO", 0, "Analyse p--O collisions"};
Configurable<bool> useCentralityFT0M{"useCentralityFT0M", 0, "If true, use centFT0M"};
Configurable<bool> useCentralityFT0A{"useCentralityFT0A", 0, "If true, use centFT0A"};
Configurable<bool> useCentralityFT0Cvar1{"useCentralityFT0Cvar1", 0, "If true, use centFT0FT0Cvar1"};
Expand Down Expand Up @@ -119,6 +120,18 @@
Configurable<int> maxOccupancy{"maxOccupancy", -1, "Maximal occupancy"};
Configurable<float> minOccupancyFT0{"minOccupancyFT0", -1, "Minimal occupancy"};
Configurable<float> maxOccupancyFT0{"maxOccupancyFT0", -1, "Maximal occupancy"};
Configurable<float> globalTracksCorrelpar0Low{"globalTracksCorrelpar0Low", 81, "[0]*exp([1]*centrality)+[2], mean minus 3*sigma"};
Configurable<float> globalTracksCorrelpar1Low{"globalTracksCorrelpar1Low", -0.0431016, "[0]*exp([1]*centrality)+[2], mean minus 3*sigma"};
Configurable<float> globalTracksCorrelpar2Low{"globalTracksCorrelpar2Low", -6, "[0]*exp([1]*centrality)+[2], mean minus 3*sigma"};
Configurable<float> globalTracksCorrelpar0High{"globalTracksCorrelpar0High", 226, "[0]*exp([1]*centrality)+[2], mean minus 3*sigma"};
Configurable<float> globalTracksCorrelpar1High{"globalTracksCorrelpar1High", -0.0181686, "[0]*exp([1]*centrality)+[2], mean plus 3*sigma"};
Configurable<float> globalTracksCorrelpar2High{"globalTracksCorrelpar2High", -22, "[0]*exp([1]*centrality)+[2], mean plus 3*sigma"};
Configurable<float> pvContribCorrelpar0Low{"pvContribCorrelpar0Low", 152, "[0]*exp([1]*centrality)+[2], mean minus 3*sigma"};
Configurable<float> pvContribCorrelpar1Low{"pvContribCorrelpar1Low", -0.0431016, "[0]*exp([1]*centrality)+[2], mean minus 3*sigma"};
Configurable<float> pvContribCorrelpar2Low{"pvContribCorrelpar2Low", -15.3776, "[0]*exp([1]*centrality)+[2], mean minus 3*sigma"};
Configurable<float> pvContribCorrelpar0High{"pvContribCorrelpar0High", 384.861, "[0]*exp([1]*centrality)+[2], mean minus 3*sigma"};
Configurable<float> pvContribCorrelpar1High{"pvContribCorrelpar1High", -0.0181686, "[0]*exp([1]*centrality)+[2], mean plus 3*sigma"};
Configurable<float> pvContribCorrelpar2High{"pvContribCorrelpar2High", -39, "[0]*exp([1]*centrality)+[2], mean plus 3*sigma"};
} eventSelectionRun3Flags;

struct : ConfigurableGroup {
Expand Down Expand Up @@ -219,6 +232,8 @@
Configurable<float> rejcomp{"rejcomp", 0.008, "Competing Cascade rejection"};
Configurable<float> masswin{"masswin", 0.05, "Mass window limit"};
Configurable<float> rapCut{"rapCut", 0.5, "Rapidity acceptance"};
Configurable<float> minRapCut{"minRapCut", -0.845, "minimal rapidity acceptance in case of p--o"};
Configurable<float> maxRapCut{"maxRapCut", 0.155, "maximal rapidity acceptance in case of p--o"};
Configurable<float> etaDauCut{"etaDauCut", 0.8, "Pseudorapidity acceptance of the cascade daughters"};
Configurable<int> minITSclusters{"minITSclusters", 3, "minimal number of ITS hits for the daughter tracks"};
} candidateSelectionValues;
Expand Down Expand Up @@ -302,6 +317,10 @@
histos.add("hNCrossedRowsPositive", "", kTH1F, {{400, -200, 200}});
histos.add("hNCrossedRowsBachelor", "", kTH1F, {{400, -200, 200}});

histos.add("hPseudorapPosDaughter", "", kTH1F, {{50, -1, 1}});
histos.add("hPseudorapNegDaughter", "", kTH1F, {{50, -1, 1}});
histos.add("hPseudorapBachelor", "", kTH1F, {{50, -1, 1}});

histos.add("hEventNchCorrelationAfCuts", "hEventNchCorrelationAfCuts", kTH2F, {{5000, 0, 5000}, {5000, 0, 2500}});
histos.add("hEventPVcontributorsVsCentrality", "hEventPVcontributorsVsCentrality", kTH2F, {{100, 0, 100}, {5000, 0, 5000}});
histos.add("hEventGlobalTracksVsCentrality", "hEventGlobalTracksVsCentrality", kTH2F, {{100, 0, 100}, {2500, 0, 2500}});
Expand Down Expand Up @@ -541,9 +560,9 @@
ptdepCut = candidateSelectionValues.cosPApar0 + candidateSelectionValues.cosPApar1 * casc.pt();
else
ptdepCut = candidateSelectionValues.cosPApar0 + candidateSelectionValues.cosPApar1 * casc.pt();
if (ptdepCut > 0.3 && casc.pt() < 0.5)

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
ptdepCut = 0.3;
if (ptdepCut < 0.012)

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
ptdepCut = 0.012;
if (isCascPa)
histos.fill(HIST("hCutValue"), 15, std::cos(ptdepCut));
Expand Down Expand Up @@ -660,9 +679,9 @@
histos.fill(HIST("hEventSelection"), 11.5 /* Not at TF border */);

if (eventSelectionRun3Flags.doMultiplicityCorrCut) {
if (coll.multNTracksGlobal() < (1343.3 * std::exp(-0.0443259 * centrality) - 50) || coll.multNTracksGlobal() > (2098.9 * std::exp(-0.0332444 * centrality)))
if (coll.multNTracksGlobal() < (eventSelectionRun3Flags.globalTracksCorrelpar0Low * std::exp(eventSelectionRun3Flags.globalTracksCorrelpar1Low * centrality) + eventSelectionRun3Flags.globalTracksCorrelpar2Low) || coll.multNTracksGlobal() > (eventSelectionRun3Flags.globalTracksCorrelpar0High * std::exp(eventSelectionRun3Flags.globalTracksCorrelpar1High * centrality) + eventSelectionRun3Flags.globalTracksCorrelpar2High))
return false;
if (coll.multNTracksPVeta1() < (3703 * std::exp(-0.0455483 * centrality) - 150) || coll.multNTracksPVeta1() > (4937.33 * std::exp(-0.0372668 * centrality) + 20))
if (coll.multNTracksPVeta1() < (eventSelectionRun3Flags.pvContribCorrelpar0Low * std::exp(eventSelectionRun3Flags.pvContribCorrelpar1Low * centrality) + eventSelectionRun3Flags.pvContribCorrelpar2Low) || coll.multNTracksPVeta1() > (eventSelectionRun3Flags.pvContribCorrelpar0High * std::exp(eventSelectionRun3Flags.pvContribCorrelpar1High * centrality) + eventSelectionRun3Flags.pvContribCorrelpar2High))
return false;
}
if (fillHists)
Expand Down Expand Up @@ -826,21 +845,27 @@
float cut = candidateSelectionValues.masswin;
histos.fill(HIST("hCutValue"), 1, cut);
cut = candidateSelectionValues.rapCut;
if (ispO)
cut = candidateSelectionValues.maxRapCut;
histos.fill(HIST("hCutValue"), 2, cut);
if (isXi) {
if (std::abs(casc.mXi() - o2::constants::physics::MassXiMinus) > candidateSelectionValues.masswin) {
return false;
}
histos.fill(HIST("hCandidate"), ++counter);
if (std::abs(casc.yXi()) > candidateSelectionValues.rapCut)
if (ispO && (casc.yXi() < candidateSelectionValues.minRapCut || casc.yXi() > candidateSelectionValues.maxRapCut))
return false;
else if (std::abs(casc.yXi()) > candidateSelectionValues.rapCut)
return false;
histos.fill(HIST("hCandidate"), ++counter);
} else {
if (std::abs(casc.mOmega() - o2::constants::physics::MassOmegaMinus) > candidateSelectionValues.masswin) {
return false;
}
histos.fill(HIST("hCandidate"), ++counter);
if (std::abs(casc.yOmega()) > candidateSelectionValues.rapCut)
if (ispO && (casc.yOmega() < candidateSelectionValues.minRapCut || casc.yOmega() > candidateSelectionValues.maxRapCut))
return false;
else if (std::abs(casc.yOmega()) > candidateSelectionValues.rapCut)
return false;
histos.fill(HIST("hCandidate"), ++counter);
}
Expand All @@ -848,9 +873,9 @@
if (candidateSelectionFlags.doDCACascadeDauCut) {
if (candidateSelectionFlags.doPtDepDCAcascDauCut) {
float ptDepCut = candidateSelectionValues.dcaCacsDauPar0;
if (casc.pt() > 1 && casc.pt() < 4)

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
ptDepCut = candidateSelectionValues.dcaCacsDauPar1;
else if (casc.pt() > 4)

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
ptDepCut = candidateSelectionValues.dcaCacsDauPar2;
histos.fill(HIST("hCutValue"), 3, ptDepCut);
if (casc.dcacascdaughters() > ptDepCut)
Expand Down Expand Up @@ -1120,11 +1145,11 @@
auto cascMC = casc.template cascMCCore_as<soa::Join<aod::CascMCCores, aod::CascMCCollRefs>>();
ptmc = RecoDecay::sqrtSumOfSquares(cascMC.pxMC(), cascMC.pyMC());

if (cascMC.isPhysicalPrimary() && ((isXi && std::abs(cascMC.pdgCode()) == 3312) || (!isXi && std::abs(cascMC.pdgCode()) == 3334)))
if (cascMC.isPhysicalPrimary() && ((isXi && std::abs(cascMC.pdgCode()) == PDG_t::kXiMinus) || (!isXi && std::abs(cascMC.pdgCode()) == PDG_t::kOmegaMinus)))
isTrueMCCascade = true;
if (isTrueMCCascade && ((isPositive && cascMC.pdgCodePositive() == 211 && cascMC.pdgCodeNegative() == -2212) || (isNegative && cascMC.pdgCodePositive() == 2212 && cascMC.pdgCodeNegative() == -211)))
if (isTrueMCCascade && ((isPositive && cascMC.pdgCodePositive() == PDG_t::kPiPlus && cascMC.pdgCodeNegative() == PDG_t::kProtonBar) || (isNegative && cascMC.pdgCodePositive() == PDG_t::kProton && cascMC.pdgCodeNegative() == PDG_t::kPiMinus)))
isCorrectLambdaDecay = true;
if (isTrueMCCascade && isCorrectLambdaDecay && ((isXi && std::abs(cascMC.pdgCodeBachelor()) == 211) || (!isXi && std::abs(cascMC.pdgCodeBachelor()) == 321)))
if (isTrueMCCascade && isCorrectLambdaDecay && ((isXi && std::abs(cascMC.pdgCodeBachelor()) == PDG_t::kPiPlus) || (!isXi && std::abs(cascMC.pdgCodeBachelor()) == PDG_t::kKPlus)))
isTrueMCCascadeDecay = true;

if (qaFlags.doBefSelCheck && isTrueMCCascade) {
Expand Down Expand Up @@ -1161,6 +1186,10 @@
continue;
histos.fill(HIST("hCandidate"), ++counter);

histos.fill(HIST("hPseudorapPosDaughter"), poseta);
histos.fill(HIST("hPseudorapNegDaughter"), negeta);
histos.fill(HIST("hPseudorapBachelor"), bacheta);

if (candidateSelectionFlags.doCascadeCosPaCut) {
if (!isCosPAAccepted(casc, coll.posX(), coll.posY(), coll.posZ(), candidateSelectionFlags.doPtDepCosPaCut, true))
continue;
Expand Down Expand Up @@ -1267,7 +1296,7 @@
if (!kHasTOF && !kHasITS)
continue;
histos.fill(HIST("hCandidate"), ++counter);
} else if (candidateSelectionFlags.dooobrej == 2) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
if (!kHasTOF && (casc.pt() > candidateSelectionValues.ptthrtof))
continue;
histos.fill(HIST("hCandidate"), ++counter);
Expand All @@ -1286,7 +1315,7 @@

if (candidateSelectionFlags.doNTOFSigmaProtonCut && casc.sign() < 0) {
histos.fill(HIST("hNsigmaTOFProton"), casc.tofNSigmaXiLaPr(), fullMomentumPosDaugh, centrality);
if (std::abs(casc.tofNSigmaXiLaPr()) > candidateSelectionValues.nsigmatofPr && fullMomentumPosDaugh > 0.6)

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
}
if (candidateSelectionFlags.doNTOFSigmaV0PionCut && casc.sign() > 0) {
Expand All @@ -1300,7 +1329,7 @@

if (candidateSelectionFlags.doNTOFSigmaProtonCut && casc.sign() > 0) {
histos.fill(HIST("hNsigmaTOFProton"), casc.tofNSigmaXiLaPr(), fullmomentumNegDaugh, centrality);
if (std::abs(casc.tofNSigmaXiLaPr()) > candidateSelectionValues.nsigmatofPr && fullmomentumNegDaugh > 0.6)

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
}
if (candidateSelectionFlags.doNTOFSigmaV0PionCut && casc.sign() < 0) {
Expand Down Expand Up @@ -1429,12 +1458,14 @@

float ptmc = RecoDecay::sqrtSumOfSquares(cascMC.pxMC(), cascMC.pyMC());
float ymc = 1e3;
if (std::abs(cascMC.pdgCode()) == 3312)
if (std::abs(cascMC.pdgCode()) == PDG_t::kXiMinus)
ymc = RecoDecay::y(std::array{cascMC.pxMC(), cascMC.pyMC(), cascMC.pzMC()}, o2::constants::physics::MassXiMinus);
else if (std::abs(cascMC.pdgCode()) == 3334)
else if (std::abs(cascMC.pdgCode()) == PDG_t::kOmegaMinus)
ymc = RecoDecay::y(std::array{cascMC.pxMC(), cascMC.pyMC(), cascMC.pzMC()}, o2::constants::physics::MassOmegaMinus);

if (std::abs(ymc) > candidateSelectionValues.rapCut)
if (ispO && (ymc > candidateSelectionValues.maxRapCut || ymc < candidateSelectionValues.minRapCut))
continue;
else if (std::abs(ymc) > candidateSelectionValues.rapCut)
continue;

auto mcCollision = cascMC.template straMCCollision_as<soa::Join<aod::StraMCCollisions, aod::StraMCCollMults>>();
Expand Down Expand Up @@ -1471,7 +1502,7 @@
nChEta1 = collision.multNTracksPVeta1();
}

if (cascMC.pdgCode() == 3312 && isXi) {
if (cascMC.pdgCode() == PDG_t::kXiMinus && isXi) {
histos.fill(HIST("h2dGenXiMinus"), centrality, ptmc);
histos.fill(HIST("h2dGenXiMinusVsNch"), nChEta1, ptmc);
histos.fill(HIST("h2dGenXiMinusEta"), RecoDecay::eta(std::array{cascMC.pxMC(), cascMC.pyMC(), cascMC.pzMC()}));
Expand All @@ -1484,7 +1515,7 @@
histos.fill(HIST("h2dGenXiMinusVsCentIR"), ptmc, centrality, intRate);
histos.fill(HIST("h2dGenXiMinusVsNchVsOccupancy"), ptmc, nChEta1, occupancy);
}
if (cascMC.pdgCode() == -3312 && isXi) {
if (cascMC.pdgCode() == PDG_t::kXiPlusBar && isXi) {
histos.fill(HIST("h2dGenXiPlus"), centrality, ptmc);
histos.fill(HIST("h2dGenXiPlusVsNch"), nChEta1, ptmc);
histos.fill(HIST("h2dGenXiPlusVsMultMCVsCentrality"), mcCollision.multMCNParticlesEta05(), centrality, ptmc);
Expand All @@ -1493,7 +1524,7 @@
histos.fill(HIST("h2dGenXiPlusVsNchVsOccupancy"), ptmc, nChEta1, occupancy);
histos.fill(HIST("h2dGenXiPlusVsCentIR"), ptmc, centrality, intRate);
}
if (cascMC.pdgCode() == 3334 && !isXi) {
if (cascMC.pdgCode() == PDG_t::kOmegaMinus && !isXi) {
histos.fill(HIST("h2dGenOmegaMinus"), centrality, ptmc);
histos.fill(HIST("h2dGenOmegaMinusVsNch"), nChEta1, ptmc);
histos.fill(HIST("h2dGenOmegaMinusEta"), RecoDecay::eta(std::array{cascMC.pxMC(), cascMC.pyMC(), cascMC.pzMC()}));
Expand All @@ -1506,7 +1537,7 @@
histos.fill(HIST("h2dGenOmegaMinusVsNchVsOccupancy"), ptmc, nChEta1, occupancy);
histos.fill(HIST("h2dGenOmegaMinusVsCentIR"), ptmc, centrality, intRate);
}
if (cascMC.pdgCode() == -3334 && !isXi) {
if (cascMC.pdgCode() == PDG_t::kOmegaPlusBar && !isXi) {
histos.fill(HIST("h2dGenOmegaPlus"), centrality, ptmc);
histos.fill(HIST("h2dGenOmegaPlusVsNch"), nChEta1, ptmc);
histos.fill(HIST("h2dGenOmegaPlusVsMultMCVsCentrality"), mcCollision.multMCNParticlesEta05(), centrality, ptmc);
Expand Down
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