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[PWGCF] FemtoUniverse -- Fix MCTruth for helicity analysis. #12969

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Merged
prchakra merged 3 commits into from
Sep 12, 2025
Merged

[PWGCF] FemtoUniverse -- Fix MCTruth for helicity analysis. #12969

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04d537f
Add new MCTruth analysis
a-m-andrushko Sep 3, 2025
fd2041d
Fix MCTruth analysis for efficiency calculation
a-m-andrushko Sep 12, 2025
1c8efd0
Merge branch 'master' into helicity_MCTruth_fix
a-m-andrushko Sep 12, 2025
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6 changes: 6 additions & 0 deletions PWGCF/FemtoUniverse/TableProducer/femtoUniverseProducerTask.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -55,7 +55,7 @@
#include <CCDB/BasicCCDBManager.h>

#include "Math/Vector4D.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 "TMath.h"
#include <TPDGCode.h>

Expand Down Expand Up @@ -450,11 +450,11 @@
}

template <typename TrackType>
aod::femtouniverseparticle::CutContainerType PIDBitmask(const TrackType& track)

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[name/function-variable] 

Use lowerCamelCase for names of functions and variables.
{
static const o2::track::PID pids[] = {o2::track::PID::Proton, o2::track::PID::Pion, o2::track::PID::Kaon};
aod::femtouniverseparticle::CutContainerType mask = 0u;
for (UInt_t i = 0; i < 3; ++i) {

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[magic-number] 

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

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
if (isNSigmaTPC(trackCuts.getNsigmaTPC(track, pids[i])))
mask |= (1u << i);
if (isNSigmaTOF(track.p(), trackCuts.getNsigmaTOF(track, pids[i]), track.hasTOF()))
Expand Down Expand Up @@ -898,6 +898,12 @@
outputPartsMC(particleOrigin, pdgCode, mcparticle.pt(), mcparticle.eta(), mcparticle.phi());
fillDebugParticleMC(mcparticle);
outputPartsMCLabels(outputPartsMC.lastIndex());

// Artificial fill of a debug table -- solves conflicts between FDParticles and FDExtParticles tables
outputDebugParts(-111., -111., -111., -111., -111., -111., -111., -111., -111.,
-111., -111., -111., -111., -111., -111., -111., -111.,
-111., -111., -111., -111., -111.,
-111., -111., -111., -111., -111., -111.);
}

template <typename ParticleType>
Expand Down Expand Up @@ -932,8 +938,8 @@
phiOrigin = aod::femtouniverse_mc_particle::ParticleOriginMCTruth::kFake;
}

TLorentzVector part1Vec;

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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.
TLorentzVector part2Vec;

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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.

const auto mMassOne = o2::constants::physics::MassKPlus; // FIXME: Get from the PDG service of the common header
const auto mMassTwo = o2::constants::physics::MassKMinus; // FIXME: Get from the PDG service of the common header
Expand All @@ -941,7 +947,7 @@
part1Vec.SetPtEtaPhiM(kaon1MC.pt(), kaon1MC.eta(), kaon1MC.phi(), mMassOne);
part2Vec.SetPtEtaPhiM(kaon2MC.pt(), kaon2MC.eta(), kaon2MC.phi(), mMassTwo);

TLorentzVector sumVec(part1Vec);

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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.
sumVec += part2Vec;

float phiEta = sumVec.Eta();
Expand Down Expand Up @@ -1883,8 +1889,8 @@
continue;
}

TLorentzVector part1Vec;

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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.
TLorentzVector part2Vec;

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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.

const auto mMassOne = o2::constants::physics::MassKPlus; // FIXME: Get from the PDG service of the common header
const auto mMassTwo = o2::constants::physics::MassKMinus; // FIXME: Get from the PDG service of the common header
Expand All @@ -1892,7 +1898,7 @@
part1Vec.SetPtEtaPhiM(p1.pt(), p1.eta(), p1.phi(), mMassOne);
part2Vec.SetPtEtaPhiM(p2.pt(), p2.eta(), p2.phi(), mMassTwo);

TLorentzVector sumVec(part1Vec);

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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.
sumVec += part2Vec;

float phiEta = sumVec.Eta();
Expand Down
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