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[PWGLF] Modified pt-correlation cut #14556

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smaff92 merged 1 commit into from
Jan 20, 2026
+35 −4
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[PWGLF] Modified pt-correlation cut #14556

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39 changes: 35 additions & 4 deletions PWGLF/Tasks/Resonances/higherMassResonances.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -408,6 +408,7 @@ struct HigherMassResonances {

hMChists.add("MCcorrections/hGenNo", "Generated collisions before and after event selection", kTH1F, {{5, 0.0f, 5.0f}});
hMChists.add("MCcorrections/hSignalLossDenominator3", "Kstar generated before event selection", kTH2F, {{ptAxis}, {multiplicityAxis}});
hMChists.add("MCcorrections/hSignalLossDenominator4", "Kstar generated before event selection", kTH2F, {{ptAxis}, {multiplicityAxis}});
hMChists.add("MCcorrections/hSignalLossNumerator3", "Kstar generated after event selection", kTH2F, {{ptAxis}, {multiplicityAxis}});
hMChists.add("MCcorrections/hMultvsCent", "Kstar generated after event selection", kTH2F, {{multiplicityAxis}, {multiplicityAxis}});
}
Expand Down Expand Up @@ -1134,7 +1135,8 @@ struct HigherMassResonances {

motherRot = daughterRot + daughter2;

double pTcorrRot = std::abs(daughterRot.Pt() + daughter2.Pt()) / motherRot.Pt();
// double pTcorrRot = std::abs(daughterRot.Pt() + daughter2.Pt()) / motherRot.Pt();
double pTcorrRot = (motherRot.Pt() - daughterRot.Pt() != 0.) ? daughterRot.Pt() / (motherRot.Pt() - daughterRot.Pt()) : 0.;

if (motherRot.Rapidity() < config.rapidityMotherData)
hglue.fill(HIST("h3glueInvMassRot"), multiplicity, motherRot.Pt(), motherRot.M(), deltaMass, deltaRvalue, pTcorrRot);
Expand Down Expand Up @@ -1255,7 +1257,8 @@ struct HigherMassResonances {
if (config.qAOptimisation) {
double deltaRvalue = std::sqrt(TVector2::Phi_mpi_pi(daughter1.phi() - daughter2.phi()) * TVector2::Phi_mpi_pi(daughter1.phi() - daughter2.phi()) + (daughter1.eta() - daughter2.eta()) * (daughter1.eta() - daughter2.eta()));
const double deltaMass = deltaM(t1.mK0Short(), t2.mK0Short());
const double ptCorr = std::abs(daughter1.Pt() + daughter2.Pt()) / mother.Pt();
// const double ptCorr = std::abs(daughter1.Pt() + daughter2.Pt()) / mother.Pt();
const double ptCorr = (mother.Pt() - daughter1.Pt() != 0.) ? daughter1.Pt() / (mother.Pt() - daughter1.Pt()) : 0.;
if (std::abs(mother.Rapidity()) < config.rapidityMotherData) {
hglue.fill(HIST("h3glueInvMassME"), multiplicity, mother.Pt(), mother.M(), deltaMass, deltaRvalue, ptCorr);
}
Expand Down Expand Up @@ -1479,6 +1482,32 @@ struct HigherMassResonances {
hMChists.fill(HIST("MCcorrections/hSignalLossNumerator2"), mcPart.pt(), multiplicity1);
hMChists.fill(HIST("MCcorrections/hSignalLossNumerator3"), mcPart.pt(), multMC);
}

auto kDaughters = mcPart.daughters_as<aod::McParticles>();
if (kDaughters.size() != config.noOfDaughters) {
continue;
}

for (const auto& kCurrentDaughter : kDaughters) {
// int daupdg = std::abs(kCurrentDaughter.pdgCode());

if (!kCurrentDaughter.isPhysicalPrimary()) {
continue;
}
if (std::abs(kCurrentDaughter.pdgCode()) == PDG_t::kK0Short) {
passKs.push_back(true);
if (passKs.size() == 1) {
daughter1 = ROOT::Math::PxPyPzMVector(kCurrentDaughter.px(), kCurrentDaughter.py(), kCurrentDaughter.pz(), o2::constants::physics::MassK0Short);
} else if (static_cast<int>(passKs.size()) == config.noOfDaughters) {
daughter2 = ROOT::Math::PxPyPzMVector(kCurrentDaughter.px(), kCurrentDaughter.py(), kCurrentDaughter.pz(), o2::constants::physics::MassK0Short);
}
}
}
if (static_cast<int>(passKs.size()) == config.noOfDaughters) {
lResonanceGen1 = daughter1 + daughter2;
hMChists.fill(HIST("MCcorrections/hSignalLossDenominator4"), lResonanceGen1.pt(), multiplicity1);
}
passKs.clear();
} // end loop on gen particles
}
PROCESS_SWITCH(HigherMassResonances, processEvtLossSigLossMC, "Process Signal Loss, Event Loss", false);
Expand Down Expand Up @@ -1772,7 +1801,8 @@ struct HigherMassResonances {
daughterRot = ROOT::Math::PxPyPzMVector(daughter1.Px() * std::cos(theta2) - daughter1.Py() * std::sin(theta2), daughter1.Px() * std::sin(theta2) + daughter1.Py() * std::cos(theta2), daughter1.Pz(), daughter1.M());

motherRot = daughterRot + daughter2;
double pTcorrRot = std::abs(daughterRot.Pt() + daughter2.Pt()) / motherRot.Pt();
// double pTcorrRot = std::abs(daughterRot.Pt() + daughter2.Pt()) / motherRot.Pt();
double pTcorrRot = (motherRot.Pt() - daughterRot.Pt() != 0.) ? daughterRot.Pt() / (motherRot.Pt() - daughterRot.Pt()) : 0.;
if (motherRot.Rapidity() < config.rapidityMotherData)
hglue.fill(HIST("h3glueInvMassRot"), multiplicity, motherRot.Pt(), motherRot.M(), deltaMass, deltaRvalue, pTcorrRot);
}
Expand Down Expand Up @@ -1840,7 +1870,8 @@ struct HigherMassResonances {
if (config.qAOptimisation) {
double deltaRvalue = std::sqrt(TVector2::Phi_mpi_pi(daughter1.phi() - daughter2.phi()) * TVector2::Phi_mpi_pi(daughter1.phi() - daughter2.phi()) + (daughter1.eta() - daughter2.eta()) * (daughter1.eta() - daughter2.eta()));
const double deltaMass = deltaM(t1.mK0Short(), t2.mK0Short());
const double ptCorr = std::abs(daughter1.Pt() + daughter2.Pt()) / mother.Pt();
// const double ptCorr = std::abs(daughter1.Pt() + daughter2.Pt()) / mother.Pt();
const double ptCorr = (mother.Pt() - daughter1.Pt() != 0.) ? daughter1.Pt() / (mother.Pt() - daughter1.Pt()) : 0.;
if (std::abs(mother.Rapidity()) < config.rapidityMotherData) {
hglue.fill(HIST("h3glueInvMassME"), multiplicity, mother.Pt(), mother.M(), deltaMass, deltaRvalue, ptCorr);
}
Expand Down
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