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[RecoDecay, Event Filtering, PWGHF] Revert to MC particle slices #695

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Apr 28, 2022
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[RecoDecay, Event Filtering, PWGHF] Revert to MC particle slices #695

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26 changes: 9 additions & 17 deletions Common/Core/RecoDecay.h
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Expand Up @@ -562,16 +562,14 @@ class RecoDecay
}

/// Finds the mother of an MC particle by looking for the expected PDG code in the mother chain.
/// \param particlesMC table with MC particles
/// \param particle MC particle
/// \param PDGMother expected mother PDG code
/// \param acceptAntiParticles switch to accept the antiparticle of the expected mother
/// \param sign antiparticle indicator of the found mother w.r.t. PDGMother; 1 if particle, -1 if antiparticle, 0 if mother not found
/// \param depthMax maximum decay tree level to check; Mothers up to this level will be considered. If -1, all levels are considered.
/// \return index of the mother particle if found, -1 otherwise
template <typename T>
static int getMother(const T& particlesMC,
const typename T::iterator& particle,
static int getMother(const T& particle,
int PDGMother,
bool acceptAntiParticles = false,
int8_t* sign = nullptr,
Expand All @@ -588,8 +586,8 @@ class RecoDecay
if (depthMax > -1 && -stage >= depthMax) { // Maximum depth has been reached.
return -1;
}
auto indexMotherTmp = particleMother.mothersIds().front();
particleMother = particlesMC.rawIteratorAt(indexMotherTmp - particlesMC.offset());
particleMother = particleMother.template mothers_first_as<typename std::decay_t<T>::parent_t>(); // get mother 0
auto indexMotherTmp = particleMother.globalIndex();
// Check mother's PDG code.
auto PDGParticleIMother = particleMother.pdgCode(); // PDG code of the mother
//printf("getMother: ");
Expand All @@ -614,7 +612,6 @@ class RecoDecay
}

/// Gets the complete list of indices of final-state daughters of an MC particle.
/// \param particlesMC table with MC particles
/// \param particle MC particle
/// \param list vector where the indices of final-state daughters will be added
/// \param arrPDGFinal array of PDG codes of particles to be considered final if found
Expand All @@ -623,8 +620,7 @@ class RecoDecay
/// \note Final state is defined as particles from arrPDGFinal plus final daughters of any other decay branch.
/// \note Antiparticles of particles in arrPDGFinal are accepted as well.
template <std::size_t N, typename T>
static void getDaughters(const T& particlesMC,
const typename T::iterator& particle,
static void getDaughters(const T& particle,
std::vector<int>* list,
const array<int, N>& arrPDGFinal,
int8_t depthMax = -1,
Expand Down Expand Up @@ -675,12 +671,8 @@ class RecoDecay
//printf("Stage %d: %d (PDG %d) -> %d-%d\n", stage, index, PDGParticle, indexDaughterFirst, indexDaughterLast);
// Call itself to get daughters of daughters recursively.
stage++;
if (particle.daughtersIds().front() != particle.daughtersIds().back()) {
for (auto& idxDau : particle.daughtersIds()) {
getDaughters(particlesMC, particlesMC.rawIteratorAt(idxDau - particlesMC.offset()), list, arrPDGFinal, depthMax, stage);
}
} else {
getDaughters(particlesMC, particlesMC.rawIteratorAt(particle.daughtersIds().front() - particlesMC.offset()), list, arrPDGFinal, depthMax, stage);
for (auto& dau : particle.template daughters_as<typename std::decay_t<T>::parent_t>()) {
getDaughters(dau, list, arrPDGFinal, depthMax, stage);
}
}

Expand Down Expand Up @@ -721,7 +713,7 @@ class RecoDecay
if (iProng == 0) {
// Get the mother index and its sign.
// PDG code of the first daughter's mother determines whether the expected mother is a particle or antiparticle.
indexMother = getMother(particlesMC, particleI, PDGMother, acceptAntiParticles, &sgn, depthMax);
indexMother = getMother(particleI, PDGMother, acceptAntiParticles, &sgn, depthMax);
// Check whether mother was found.
if (indexMother <= -1) {
//Printf("MC Rec: Rejected: bad mother index or PDG");
Expand All @@ -740,7 +732,7 @@ class RecoDecay
return -1;
}
// Get the list of actual final daughters.
getDaughters(particlesMC, particleMother, &arrAllDaughtersIndex, arrPDGDaughters, depthMax);
getDaughters(particleMother, &arrAllDaughtersIndex, arrPDGDaughters, depthMax);
//printf("MC Rec: Mother %d has %d final daughters:", indexMother, arrAllDaughtersIndex.size());
//for (auto i : arrAllDaughtersIndex) {
// printf(" %d", i);
Expand Down Expand Up @@ -858,7 +850,7 @@ class RecoDecay
return false;
}
// Get the list of actual final daughters.
getDaughters(particlesMC, candidate, &arrAllDaughtersIndex, arrPDGDaughters, depthMax);
getDaughters(candidate, &arrAllDaughtersIndex, arrPDGDaughters, depthMax);
//printf("MC Gen: Mother %ld has %ld final daughters:", candidate.globalIndex(), arrAllDaughtersIndex.size());
//for (auto i : arrAllDaughtersIndex) {
// printf(" %d", i);
Expand Down
4 changes: 2 additions & 2 deletions EventFiltering/PWGHF/HFFilter.cxx
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Expand Up @@ -978,7 +978,7 @@ struct HfFilter { // Main struct for HF triggers
auto indexRec = RecoDecay::getMatchedMCRec(particlesMC, std::array{trackPos, trackNeg}, pdg::Code::kD0, array{+kPiPlus, -kKPlus}, true, &sign);
if (indexRec > -1) {
auto particle = particlesMC.rawIteratorAt(indexRec);
origin = (RecoDecay::getMother(particlesMC, particle, kBottom, true) > -1 ? OriginType::NonPrompt : OriginType::Prompt);
origin = (RecoDecay::getMother(particle, kBottom, true) > -1 ? OriginType::NonPrompt : OriginType::Prompt);
if (origin == OriginType::NonPrompt) {
flag = kNonPrompt;
} else {
Expand Down Expand Up @@ -1037,7 +1037,7 @@ struct HfFilter { // Main struct for HF triggers

if (indexRec > -1) {
auto particle = particlesMC.rawIteratorAt(indexRec);
origin = (RecoDecay::getMother(particlesMC, particle, kBottom, true) > -1 ? OriginType::NonPrompt : OriginType::Prompt);
origin = (RecoDecay::getMother(particle, kBottom, true) > -1 ? OriginType::NonPrompt : OriginType::Prompt);
if (origin == OriginType::NonPrompt) {
flag = kNonPrompt;
} else {
Expand Down
4 changes: 2 additions & 2 deletions PWGHF/TableProducer/HFCandidateCreator2Prong.cxx
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Expand Up @@ -185,7 +185,7 @@ struct HFCandidateCreator2ProngExpressions {
// Check whether the particle is non-prompt (from a b quark).
if (flag != 0) {
auto particle = particlesMC.rawIteratorAt(indexRec);
origin = (RecoDecay::getMother(particlesMC, particle, kBottom, true) > -1 ? OriginType::NonPrompt : OriginType::Prompt);
origin = (RecoDecay::getMother(particle, kBottom, true) > -1 ? OriginType::NonPrompt : OriginType::Prompt);
}

rowMCMatchRec(flag, origin);
Expand Down Expand Up @@ -221,7 +221,7 @@ struct HFCandidateCreator2ProngExpressions {

// Check whether the particle is non-prompt (from a b quark).
if (flag != 0) {
origin = (RecoDecay::getMother(particlesMC, particle, kBottom, true) > -1 ? OriginType::NonPrompt : OriginType::Prompt);
origin = (RecoDecay::getMother(particle, kBottom, true) > -1 ? OriginType::NonPrompt : OriginType::Prompt);
}

rowMCMatchGen(flag, origin);
Expand Down
8 changes: 4 additions & 4 deletions PWGHF/TableProducer/HFCandidateCreator3Prong.cxx
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Expand Up @@ -195,7 +195,7 @@ struct HFCandidateCreator3ProngExpressions {
if (arrayDaughters[0].has_mcParticle()) {
swapping = int8_t(std::abs(arrayDaughters[0].mcParticle().pdgCode()) == kPiPlus);
}
RecoDecay::getDaughters(particlesMC, particlesMC.rawIteratorAt(indexRec), &arrDaughIndex, array{0}, 1);
RecoDecay::getDaughters(particlesMC.rawIteratorAt(indexRec), &arrDaughIndex, array{0}, 1);
if (arrDaughIndex.size() == 2) {
for (auto iProng = 0u; iProng < arrDaughIndex.size(); ++iProng) {
auto daughI = particlesMC.rawIteratorAt(arrDaughIndex[iProng]);
Expand Down Expand Up @@ -224,7 +224,7 @@ struct HFCandidateCreator3ProngExpressions {
// Check whether the particle is non-prompt (from a b quark).
if (flag != 0) {
auto particle = particlesMC.rawIteratorAt(indexRec);
origin = (RecoDecay::getMother(particlesMC, particle, kBottom, true) > -1 ? OriginType::NonPrompt : OriginType::Prompt);
origin = (RecoDecay::getMother(particle, kBottom, true) > -1 ? OriginType::NonPrompt : OriginType::Prompt);
}

rowMCMatchRec(flag, origin, swapping, channel);
Expand All @@ -251,7 +251,7 @@ struct HFCandidateCreator3ProngExpressions {
flag = sign * (1 << DecayType::LcToPKPi);

//Printf("Flagging the different Λc± → p± K∓ π± decay channels");
RecoDecay::getDaughters(particlesMC, particle, &arrDaughIndex, array{0}, 1);
RecoDecay::getDaughters(particle, &arrDaughIndex, array{0}, 1);
if (arrDaughIndex.size() == 2) {
for (auto jProng = 0u; jProng < arrDaughIndex.size(); ++jProng) {
auto daughJ = particlesMC.rawIteratorAt(arrDaughIndex[jProng]);
Expand All @@ -278,7 +278,7 @@ struct HFCandidateCreator3ProngExpressions {

// Check whether the particle is non-prompt (from a b quark).
if (flag != 0) {
origin = (RecoDecay::getMother(particlesMC, particle, kBottom, true) > -1 ? OriginType::NonPrompt : OriginType::Prompt);
origin = (RecoDecay::getMother(particle, kBottom, true) > -1 ? OriginType::NonPrompt : OriginType::Prompt);
}

rowMCMatchGen(flag, origin, channel);
Expand Down
2 changes: 1 addition & 1 deletion PWGHF/TableProducer/HFCandidateCreatorCascade.cxx
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Expand Up @@ -275,7 +275,7 @@ struct HFCandidateCreatorCascadeMC {
MY_DEBUG_MSG(sign, LOG(info) << "Lc in K0S p");
arrDaughLcIndex.clear();
// checking that the final daughters (decay depth = 3) are p, pi+, pi-
RecoDecay::getDaughters(particlesMC, particle, &arrDaughLcIndex, arrDaughLcPDGRef, 3); // best would be to check the K0S daughters
RecoDecay::getDaughters(particle, &arrDaughLcIndex, arrDaughLcPDGRef, 3); // best would be to check the K0S daughters
if (arrDaughLcIndex.size() == 3) {
for (std::size_t iProng = 0; iProng < arrDaughLcIndex.size(); ++iProng) {
auto daughI = particlesMC.rawIteratorAt(arrDaughLcIndex[iProng]);
Expand Down
10 changes: 5 additions & 5 deletions PWGHF/TableProducer/HFCandidateCreatorChic.cxx
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Expand Up @@ -231,15 +231,15 @@ struct HFCandidateCreatorChicMC {
if (indexRec > -1) {
hMassJpsiToMuMuMatched->Fill(InvMassJpsiToMuMu(candidate.index0()));

int indexMother = RecoDecay::getMother(particlesMC, particlesMC.rawIteratorAt(indexRec), pdg::Code::kChic1);
int indexMotherGamma = RecoDecay::getMother(particlesMC, particlesMC.rawIteratorAt(candidate.index1().mcparticleId()), pdg::Code::kChic1);
int indexMother = RecoDecay::getMother(particlesMC.rawIteratorAt(indexRec), pdg::Code::kChic1);
int indexMotherGamma = RecoDecay::getMother(particlesMC.rawIteratorAt(candidate.index1().mcparticleId()), pdg::Code::kChic1);
if (indexMother > -1 && indexMotherGamma == indexMother && candidate.index1().mcparticle().pdgCode() == kGamma) {
auto particleMother = particlesMC.rawIteratorAt(indexMother);
hEphotonMatched->Fill(candidate.index1().e());
hMassEMatched->Fill(sqrt(candidate.index1().px() * candidate.index1().px() + candidate.index1().py() * candidate.index1().py() + candidate.index1().pz() * candidate.index1().pz()));
if (particleMother.has_daughters()) {
std::vector<int> arrAllDaughtersIndex;
RecoDecay::getDaughters(particlesMC, particleMother, &arrAllDaughtersIndex, array{(int)(kGamma), (int)(pdg::Code::kJpsi)}, 1);
RecoDecay::getDaughters(particleMother, &arrAllDaughtersIndex, array{(int)(kGamma), (int)(pdg::Code::kJpsi)}, 1);
if (arrAllDaughtersIndex.size() == 2) {
flag = 1 << hf_cand_chic::DecayType::ChicToJpsiToMuMuGamma;
hMassChicToJpsiToMuMuGammaMatched->Fill(InvMassChicToJpsiGamma(candidate));
Expand All @@ -249,7 +249,7 @@ struct HFCandidateCreatorChicMC {
}
if (flag != 0) {
auto particle = particlesMC.rawIteratorAt(indexRec);
origin = (RecoDecay::getMother(particlesMC, particle, kBottom, true) > -1 ? NonPrompt : Prompt);
origin = (RecoDecay::getMother(particle, kBottom, true) > -1 ? NonPrompt : Prompt);
}
rowMCMatchRec(flag, origin, channel);
}
Expand All @@ -265,7 +265,7 @@ struct HFCandidateCreatorChicMC {
if (RecoDecay::isMatchedMCGen(particlesMC, particle, pdg::Code::kChic1, array{(int)(pdg::Code::kJpsi), (int)(kGamma)}, true)) {
// Match J/psi --> e+e-
std::vector<int> arrDaughter;
RecoDecay::getDaughters(particlesMC, particle, &arrDaughter, array{(int)(pdg::Code::kJpsi)}, 1);
RecoDecay::getDaughters(particle, &arrDaughter, array{(int)(pdg::Code::kJpsi)}, 1);
auto jpsiCandMC = particlesMC.rawIteratorAt(arrDaughter[0]);
if (RecoDecay::isMatchedMCGen(particlesMC, jpsiCandMC, pdg::Code::kJpsi, array{+kElectron, -kElectron}, true)) {
flag = 1 << hf_cand_chic::DecayType::ChicToJpsiToEEGamma;
Expand Down
6 changes: 3 additions & 3 deletions PWGHF/TableProducer/HFCandidateCreatorX.cxx
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Expand Up @@ -305,7 +305,7 @@ struct HFCandidateCreatorXMC {
// Check whether the particle is non-prompt (from a b quark).
if (flag != 0) {
auto particle = particlesMC.rawIteratorAt(indexRec);
origin = (RecoDecay::getMother(particlesMC, particle, 5, true) > -1 ? NonPrompt : Prompt);
origin = (RecoDecay::getMother(particle, 5, true) > -1 ? NonPrompt : Prompt);
}

rowMCMatchRec(flag, origin, channel);
Expand All @@ -323,7 +323,7 @@ struct HFCandidateCreatorXMC {
if (RecoDecay::isMatchedMCGen(particlesMC, particle, pdgCodeX, array{pdgCodeJpsi, +kPiPlus, -kPiPlus}, true)) {
// Match J/psi --> e+e-
std::vector<int> arrDaughter;
RecoDecay::getDaughters(particlesMC, particle, &arrDaughter, array{pdgCodeJpsi}, 1);
RecoDecay::getDaughters(particle, &arrDaughter, array{pdgCodeJpsi}, 1);
auto jpsiCandMC = particlesMC.rawIteratorAt(arrDaughter[0]);
if (RecoDecay::isMatchedMCGen(particlesMC, jpsiCandMC, pdgCodeJpsi, array{+kElectron, -kElectron}, true)) {
flag = 1 << hf_cand_x::DecayType::XToJpsiToEEPiPi;
Expand All @@ -338,7 +338,7 @@ struct HFCandidateCreatorXMC {

// Check whether the particle is non-prompt (from a b quark).
if (flag != 0) {
origin = (RecoDecay::getMother(particlesMC, particle, 5, true) > -1 ? NonPrompt : Prompt);
origin = (RecoDecay::getMother(particle, 5, true) > -1 ? NonPrompt : Prompt);
}

rowMCMatchGen(flag, origin, channel);
Expand Down
6 changes: 3 additions & 3 deletions PWGHF/Tasks/HFMCValidation.cxx
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Expand Up @@ -133,7 +133,7 @@ struct ValidationGenLevel {
int whichHadron = -1;
if (std::abs(particlePdgCode) == PDGArrayParticle[iD]) {
whichHadron = iD;
RecoDecay::getDaughters(particlesMC, particle, &listDaughters, arrPDGFinal[iD], -1);
RecoDecay::getDaughters(particle, &listDaughters, arrPDGFinal[iD], -1);
std::size_t arrayPDGsize = arrPDGFinal[iD].size() - std::count(arrPDGFinal[iD].begin(), arrPDGFinal[iD].end(), 0);
if (listDaughters.size() == arrayPDGsize) {
counter[iD]++;
Expand Down Expand Up @@ -232,7 +232,7 @@ struct ValidationRecLevel {
if (whichHad >= 0) {
int indexParticle = 0;
if (cand2Prong.index0_as<aod::BigTracksMC>().has_mcParticle()) {
indexParticle = RecoDecay::getMother(particlesMC, cand2Prong.index0_as<aod::BigTracksMC>().mcParticle(), PDGArrayParticle[whichHad], true);
indexParticle = RecoDecay::getMother(cand2Prong.index0_as<aod::BigTracksMC>().mcParticle(), PDGArrayParticle[whichHad], true);
}
auto mother = particlesMC.rawIteratorAt(indexParticle);
histPt[whichHad]->Fill(cand2Prong.pt() - mother.pt());
Expand Down Expand Up @@ -278,7 +278,7 @@ struct ValidationRecLevel {
if (whichHad >= 0) {
int indexParticle = 0;
if (cand3Prong.index0_as<aod::BigTracksMC>().has_mcParticle()) {
indexParticle = RecoDecay::getMother(particlesMC, cand3Prong.index0_as<aod::BigTracksMC>().mcParticle(), PDGArrayParticle[whichHad], true);
indexParticle = RecoDecay::getMother(cand3Prong.index0_as<aod::BigTracksMC>().mcParticle(), PDGArrayParticle[whichHad], true);
}
auto mother = particlesMC.rawIteratorAt(indexParticle);
histPt[whichHad]->Fill(cand3Prong.pt() - mother.pt());
Expand Down
2 changes: 1 addition & 1 deletion PWGHF/Tasks/taskBPlus.cxx
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Expand Up @@ -182,7 +182,7 @@ struct HfTaskBplusMc {
}
if (std::abs(candidate.flagMCMatchRec()) == 1 << hf_cand_bplus::DecayType::BPlusToD0Pi) {

auto indexMother = RecoDecay::getMother(particlesMC, candidate.index1_as<aod::BigTracksMC>().mcParticle_as<soa::Join<aod::McParticles, aod::HfCandBPMCGen>>(), pdg::Code::kBPlus, true);
auto indexMother = RecoDecay::getMother(candidate.index1_as<aod::BigTracksMC>().mcParticle_as<soa::Join<aod::McParticles, aod::HfCandBPMCGen>>(), pdg::Code::kBPlus, true);
auto particleMother = particlesMC.rawIteratorAt(indexMother);
registry.fill(HIST("hPtGenSig"), particleMother.pt());
registry.fill(HIST("hPtRecSig"), candidate.pt());
Expand Down
2 changes: 1 addition & 1 deletion PWGHF/Tasks/taskChic.cxx
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Expand Up @@ -165,7 +165,7 @@ struct TaskChicMC {
}
if (candidate.flagMCMatchRec() == 1 << decayMode) {
//FIXME the access to the MC particle gen not yet functional
//int indexMother = RecoDecay::getMother(particlesMC, particlesMC.rawIteratorAt(candidate.index1().mcParticle_as<aod::McParticles_000>().globalIndex()), 20443);
//int indexMother = RecoDecay::getMother(particlesMC.rawIteratorAt(candidate.index1().mcParticle_as<aod::McParticles_000>().globalIndex()), 20443);
//auto particleMother = particlesMC.rawIteratorAt(indexMother);
//registry.fill(HIST("hPtGenSig"), particleMother.pt());
registry.fill(HIST("hPtRecSig"), candidate.pt());
Expand Down
2 changes: 1 addition & 1 deletion PWGHF/Tasks/taskD0.cxx
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Expand Up @@ -182,7 +182,7 @@ struct TaskD0 {
}
if (std::abs(candidate.flagMCMatchRec()) == 1 << DecayType::D0ToPiK) {
// Get the corresponding MC particle.
auto indexMother = RecoDecay::getMother(particlesMC, candidate.index0_as<aod::BigTracksMC>().mcParticle_as<soa::Join<aod::McParticles, aod::HfCandProng2MCGen>>(), pdg::Code::kD0, true);
auto indexMother = RecoDecay::getMother(candidate.index0_as<aod::BigTracksMC>().mcParticle_as<soa::Join<aod::McParticles, aod::HfCandProng2MCGen>>(), pdg::Code::kD0, true);
auto particleMother = particlesMC.rawIteratorAt(indexMother);
registry.fill(HIST("hPtGenSig"), particleMother.pt()); // gen. level pT
auto ptRec = candidate.pt();
Expand Down
2 changes: 1 addition & 1 deletion PWGHF/Tasks/taskDPlus.cxx
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Expand Up @@ -144,7 +144,7 @@ struct TaskDPlus {
}
if (std::abs(candidate.flagMCMatchRec()) == 1 << DecayType::DPlusToPiKPi) {
// Get the corresponding MC particle.
auto indexMother = RecoDecay::getMother(particlesMC, candidate.index0_as<aod::BigTracksMC>().mcParticle_as<soa::Join<aod::McParticles, aod::HfCandProng3MCGen>>(), pdg::Code::kDPlus, true);
auto indexMother = RecoDecay::getMother(candidate.index0_as<aod::BigTracksMC>().mcParticle_as<soa::Join<aod::McParticles, aod::HfCandProng3MCGen>>(), pdg::Code::kDPlus, true);
auto particleMother = particlesMC.rawIteratorAt(indexMother);
registry.fill(HIST("hPtGenSig"), particleMother.pt()); // gen. level pT
auto ptRec = candidate.pt();
Expand Down
2 changes: 1 addition & 1 deletion PWGHF/Tasks/taskJpsi.cxx
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Expand Up @@ -231,7 +231,7 @@ struct TaskJpsiMC {
}
if (candidate.flagMCMatchRec() == 1 << decayMode) {
//Get the corresponding MC particle.
auto indexMother = RecoDecay::getMother(particlesMC, candidate.index0_as<aod::BigTracksMC>().mcParticle_as<McParticlesHf>(), pdg::Code::kJpsi, true);
auto indexMother = RecoDecay::getMother(candidate.index0_as<aod::BigTracksMC>().mcParticle_as<McParticlesHf>(), pdg::Code::kJpsi, true);
auto particleMother = particlesMC.rawIteratorAt(indexMother);
registry.fill(HIST("hPtGenSig"), particleMother.pt()); // gen. level pT
registry.fill(HIST("hPtRecSig"), candidate.pt()); // rec. level pT
Expand Down
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