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[PWGLF] Add an additional systematic uncertainty table, and also consider another method for removing shared tracks. #18238

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Merged
romainschotter merged 3 commits into from
Oct 9, 2026
Merged

[PWGLF] Add an additional systematic uncertainty table, and also consider another method for removing shared tracks. #18238

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15071832337 Oct 9, 2026
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16 changes: 15 additions & 1 deletion PWGLF/DataModel/LFSpincorrelationTables.h
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,12 @@ DECLARE_SOA_COLUMN(ProtonPhi, protonPhi, float); //! Proton Ph
DECLARE_SOA_COLUMN(ProtonIndex, protonIndex, int); //! Proton index
DECLARE_SOA_COLUMN(PionIndex, pionIndex, int); //! Pion index
DECLARE_SOA_COLUMN(DcaV0ToPV, dcaV0ToPV, float); //! DCA of V0 to primary vertex
DECLARE_SOA_COLUMN(TpcPosNClsCrossedRows, tpcPosNClsCrossedRows, float);
DECLARE_SOA_COLUMN(TpcNegNClsCrossedRows, tpcNegNClsCrossedRows, float);
DECLARE_SOA_COLUMN(Ctau, ctau, float);
DECLARE_SOA_COLUMN(TpcNsigmaPos, tpcNsigmaPos, float);
DECLARE_SOA_COLUMN(TpcNsigmaNeg, tpcNsigmaNeg, float);
DECLARE_SOA_COLUMN(MK0Short, mK0Short, float);

} // namespace lambdapair
DECLARE_SOA_TABLE(LambdaPairs, "AOD", "LAMBDAPAIR",
Expand All @@ -74,7 +80,13 @@ DECLARE_SOA_TABLE(LambdaPairs, "AOD", "LAMBDAPAIR",
lambdapair::ProtonPhi,
lambdapair::ProtonIndex,
lambdapair::PionIndex,
lambdapair::DcaV0ToPV);
lambdapair::DcaV0ToPV,
lambdapair::TpcPosNClsCrossedRows,
lambdapair::TpcNegNClsCrossedRows,
lambdapair::Ctau,
lambdapair::TpcNsigmaPos,
lambdapair::TpcNsigmaNeg,
lambdapair::MK0Short);

using LambdaPair = LambdaPairs::iterator;

Expand Down Expand Up @@ -109,6 +121,8 @@ DECLARE_SOA_COLUMN(ProtonPhimc, protonPhimc, float); //! Proto
DECLARE_SOA_COLUMN(ProtonIndexmc, protonIndexmc, int); //! Proton index in montecarlo
DECLARE_SOA_COLUMN(PionIndexmc, pionIndexmc, int); //! Pion index in montecarlo
DECLARE_SOA_COLUMN(DcaV0ToPVmc, dcaV0ToPVmc, float); //! DCA of V0 to primary vertex

//! TPC n sigma
} // namespace lambdapairmc
DECLARE_SOA_TABLE(LambdaPairmcs, "AOD", "LAMBDAPAIRMC",
o2::soa::Index<>,
Expand Down
22 changes: 21 additions & 1 deletion PWGLF/TableProducer/Strangeness/lambdaspincorrelation.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -299,6 +299,13 @@ struct lambdaspincorrelation {
std::vector<int> negativeIndex = {};
std::vector<float> dcaBetweenDaughter = {};
std::vector<float> dcaV0ToPV = {};
std::vector<float> tpcPosNClsCrossedRows = {};
std::vector<float> tpcNegNClsCrossedRows = {};
std::vector<float> ctau = {};
std::vector<float> tpcNsigmaPos = {};
std::vector<float> tpcNsigmaNeg = {};
std::vector<float> mK0Short = {};

int numbV0 = 0;
// LOGF(info, "event collisions: (%d)", collision.index());
auto centrality = collision.centFT0C();
Expand Down Expand Up @@ -350,13 +357,26 @@ struct lambdaspincorrelation {
if (aLambdaTag) {
histos.fill(HIST("hV0Info"), 3.5);
}

float ctauLambda = v0.distovertotmom(collision.posX(), collision.posY(), collision.posZ()) * (o2::constants::physics::MassLambda);

// LOGF(info, "v0 index2: (%d)", v0.index());
auto postrack1 = v0.template posTrack_as<AllTrackCandidates>();
auto negtrack1 = v0.template negTrack_as<AllTrackCandidates>();
positiveIndex.push_back(postrack1.globalIndex());
negativeIndex.push_back(negtrack1.globalIndex());
v0Cospa.push_back(v0.v0cosPA());
dcaV0ToPV.push_back(std::abs(v0.dcav0topv()));

tpcPosNClsCrossedRows.push_back(postrack1.tpcNClsCrossedRows());
tpcNegNClsCrossedRows.push_back(negtrack1.tpcNClsCrossedRows());
ctau.push_back(ctauLambda);

tpcNsigmaPos.push_back(std::abs(postrack1.tpcNSigmaPr()));
tpcNsigmaNeg.push_back(std::abs(negtrack1.tpcNSigmaPi()));

mK0Short.push_back(v0.mK0Short());

v0Radius.push_back(v0.v0radius());
dcaPositive.push_back(std::abs(v0.dcapostopv()));
dcaNegative.push_back(std::abs(v0.dcanegtopv()));
Expand Down Expand Up @@ -393,7 +413,7 @@ struct lambdaspincorrelation {
lambdaDummy = lambdaMother.at(i5);
protonDummy = protonDaughter.at(i5);
pionDummy = pionDaughter.at(i5);
lambdaPair(indexEvent, v0Status.at(i5), doubleStatus.at(i5), v0Cospa.at(i5), v0Radius.at(i5), dcaPositive.at(i5), dcaNegative.at(i5), dcaBetweenDaughter.at(i5), lambdaDummy.Pt(), lambdaDummy.Eta(), lambdaDummy.Phi(), lambdaDummy.M(), protonDummy.Pt(), protonDummy.Eta(), protonDummy.Phi(), positiveIndex.at(i5), negativeIndex.at(i5), dcaV0ToPV.at(i5));
lambdaPair(indexEvent, v0Status.at(i5), doubleStatus.at(i5), v0Cospa.at(i5), v0Radius.at(i5), dcaPositive.at(i5), dcaNegative.at(i5), dcaBetweenDaughter.at(i5), lambdaDummy.Pt(), lambdaDummy.Eta(), lambdaDummy.Phi(), lambdaDummy.M(), protonDummy.Pt(), protonDummy.Eta(), protonDummy.Phi(), positiveIndex.at(i5), negativeIndex.at(i5), dcaV0ToPV.at(i5), tpcPosNClsCrossedRows.at(i5), tpcNegNClsCrossedRows.at(i5), ctau.at(i5), tpcNsigmaPos.at(i5), tpcNsigmaNeg.at(i5), mK0Short.at(i5));
}
}
}
Expand Down
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