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fgrosa merged 4 commits into from
Oct 21, 2026
Merged

[PWGHF] Add information to get generated signals with daughters in acceptance #18377

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220d1f2
Add information to get generated signals with daughters in acceptance
fgrosa Oct 21, 2026
6470112
Add missing assignment of eta values
fgrosa Oct 21, 2026
f8532ac
Do not filter in case of daughter info filling enabled
fgrosa Oct 21, 2026
4c5ce1e
Enable check process
fgrosa Oct 21, 2026
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140 changes: 134 additions & 6 deletions PWGHF/TableProducer/treeCreatorXicToXiPiPi.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -70,13 +70,20 @@ DECLARE_SOA_COLUMN(CpaXY, cpaXY, float); //!
DECLARE_SOA_COLUMN(PtXi, ptXi, float); //! Transverse momentum of Xi (prong0) (GeV/c)
DECLARE_SOA_COLUMN(ImpactParameterXi, impactParameterXi, float); //! Impact parameter of Xi (prong0)
DECLARE_SOA_COLUMN(ImpactParameterNormalisedXi, impactParameterNormalisedXi, float); //! Normalised impact parameter of Xi (prong0)
DECLARE_SOA_COLUMN(EtaBachelorPi, etaBachelorPi, float); //! Pseudorapidity of bachelor Pi
DECLARE_SOA_COLUMN(PPi0, pPi0, float); //! Momentum of Pi0 (prong1) (GeV/c)
DECLARE_SOA_COLUMN(PtPi0, ptPi0, float); //! Transverse momentum of Pi0 (prong1) (GeV/c)
DECLARE_SOA_COLUMN(EtaPi0, etaPi0, float); //! Pseudorapidity of Pi0 (prong1
DECLARE_SOA_COLUMN(ImpactParameterPi0, impactParameterPi0, float); //! Impact parameter of Pi0 (prong1)
DECLARE_SOA_COLUMN(ImpactParameterNormalisedPi0, impactParameterNormalisedPi0, float); //! Normalised impact parameter of Pi0 (prong1)
DECLARE_SOA_COLUMN(PPi1, pPi1, float); //! Momentum of Pi1 (prong2) (GeV/c)
DECLARE_SOA_COLUMN(PtPi1, ptPi1, float); //! Transverse momentum of Pi1 (prong2) (GeV/c)
DECLARE_SOA_COLUMN(ImpactParameterPi1, impactParameterPi1, float); //! Normalised impact parameter of Pi1 (prong2)
DECLARE_SOA_COLUMN(EtaPi1, etaPi1, float); //! Pseudorapidity of Pi1 (prong2)
DECLARE_SOA_COLUMN(PtPiFromLambda, ptPiFromLambda, float); //! Transverse momentum of pion from Lambda (GeV/c)
DECLARE_SOA_COLUMN(EtaPiFromLambda, etaPiFromLambda, float); //! Pseudorapidity of pion from Lambda (GeV/c)
DECLARE_SOA_COLUMN(PtPrFromLambda, ptPrFromLambda, float); //! Transverse momentum of proton from Lambda (GeV/c)
DECLARE_SOA_COLUMN(EtaPrFromLambda, etaPrFromLambda, float); //! Pseudorapidity of proton from Lambda (GeV/c)
DECLARE_SOA_COLUMN(ImpactParameterPi1, impactParameterPi1, float); //! Impact parameter of Pi1 (prong2)
DECLARE_SOA_COLUMN(ImpactParameterNormalisedPi1, impactParameterNormalisedPi1, float); //! Normalised impact parameter of Pi1 (prong2)
DECLARE_SOA_COLUMN(MaxNormalisedDeltaIP, maxNormalisedDeltaIP, float); //! Maximum normalized difference between measured and expected impact parameter of candidate prongs
DECLARE_SOA_COLUMN(MlScoreBkg, mlScoreBkg, float); //! ML score for background class
Expand Down Expand Up @@ -367,7 +374,17 @@ DECLARE_SOA_TABLE(HfCandXicToXiPiPiFullPs, "AOD", "HFXICXI2PIFULLP",
full::Eta,
full::Phi,
full::Y,
hf_cand_xic_to_xi_pi_pi::DecayLengthMcGen);
hf_cand_xic_to_xi_pi_pi::DecayLengthMcGen,
full::PtPi0,
full::PtPi1,
hf_cand_xic_to_xi_pi_pi::PtBachelorPi,
full::PtPiFromLambda,
full::PtPrFromLambda,
full::EtaPi0,
full::EtaPi1,
full::EtaBachelorPi,
full::EtaPiFromLambda,
full::EtaPrFromLambda);
} // namespace o2::aod

/// Writes the full information in an output TTree
Expand All @@ -382,6 +399,7 @@ struct HfTreeCreatorXicToXiPiPi {
Configurable<int> selectionFlagXic{"selectionFlagXic", 1, "Selection Flag for Xic"};
Configurable<bool> fillCandidateLiteTable{"fillCandidateLiteTable", false, "Switch to fill lite table with candidate properties"};
Configurable<bool> fillGenParticleTable{"fillGenParticleTable", false, "Switch to fill table with MC truth for generated particles"};
Configurable<bool> fillGenInfoForAcceptance{"fillGenInfoForAcceptance", true, "Enable filling of information for acceptance computation"};
// parameters for production of training samples
Configurable<bool> fillOnlySignal{"fillOnlySignal", false, "Flag to fill derived tables with signal for ML trainings"};
Configurable<bool> fillOnlyBackground{"fillOnlyBackground", false, "Flag to fill derived tables with background for ML trainings"};
Expand All @@ -399,7 +417,7 @@ struct HfTreeCreatorXicToXiPiPi {
using MatchedGenXicToXiPiPi = soa::Filtered<soa::Join<aod::McParticles, aod::HfCandXicMcGen>>;

Filter filterSelectCandidates = aod::hf_sel_candidate_xic::isSelXicToXiPiPi >= selectionFlagXic;
Filter filterGenXicToXiPiPi = (nabs(aod::hf_cand_mc_flag::flagMcMatchGen) == static_cast<int8_t>(BIT(aod::hf_cand_xic_to_xi_pi_pi::DecayType::XicToXiPiPi)) || nabs(aod::hf_cand_mc_flag::flagMcMatchGen) == static_cast<int8_t>(BIT(aod::hf_cand_xic_to_xi_pi_pi::DecayType::XicToXiResPiToXiPiPi)));
Filter filterGenXicToXiPiPi = (nabs(aod::hf_cand_mc_flag::flagMcMatchGen) == static_cast<int8_t>(BIT(aod::hf_cand_xic_to_xi_pi_pi::DecayType::XicToXiPiPi)) || nabs(aod::hf_cand_mc_flag::flagMcMatchGen) == static_cast<int8_t>(BIT(aod::hf_cand_xic_to_xi_pi_pi::DecayType::XicToXiResPiToXiPiPi)) || fillGenInfoForAcceptance == true);

Partition<SelectedCandidatesMc> recSig = nabs(aod::hf_cand_mc_flag::flagMcMatchRec) != int8_t(0);
Partition<SelectedCandidatesMc> recBg = nabs(aod::hf_cand_mc_flag::flagMcMatchRec) == int8_t(0);
Expand Down Expand Up @@ -715,6 +733,61 @@ struct HfTreeCreatorXicToXiPiPi {
}
}

template <typename Parts>
void getMcDaughterInformation(Parts const& particles,
Parts::iterator const& particle,
float& ptPi0,
float& ptPi1,
float& ptPiBachelor,
float& ptPiFromLambda,
float& ptPrFromLambda,
float& etaPi0,
float& etaPi1,
float& etaPiBachelor,
float& etaPiFromLambda,
float& etaPrFromLambda)
{
std::vector<int> arrDaughIndex = {};
RecoDecay::getDaughters<true>(particle, &arrDaughIndex, std::array{+kXiMinus, +kPiPlus, +kPiPlus}, 2);
bool foundFirstPi{false};
for (const int iProng : arrDaughIndex) {
auto daugh = particles.rawIteratorAt(iProng);
if (std::abs(daugh.pdgCode()) == +kPiPlus) {
if (foundFirstPi) {
ptPi1 = daugh.pt();
etaPi1 = daugh.eta();
} else {
ptPi0 = daugh.pt();
etaPi0 = daugh.eta();
foundFirstPi = true;
}
} else if (std::abs(daugh.pdgCode()) == +kXiMinus) {
std::vector<int> arrDaughIndexXi = {};
RecoDecay::getDaughters<true>(daugh, &arrDaughIndexXi, std::array{+kLambda0, -kPiPlus}, 1);
for (const int iProngXi : arrDaughIndexXi) {
auto daughXi = particles.rawIteratorAt(iProngXi);
if (std::abs(daughXi.pdgCode()) == +kPiPlus) {
ptPiBachelor = daughXi.pt();
etaPiBachelor = daughXi.eta();
} else {
std::vector<int> arrDaughIndexLambda = {};
RecoDecay::getDaughters<true>(daughXi, &arrDaughIndexLambda, std::array{+kProton, -kPiPlus}, 1);
for (const int iProngLambda : arrDaughIndexLambda) {
auto daughLambda = particles.rawIteratorAt(iProngLambda);
if (std::abs(daughLambda.pdgCode()) == +kPiPlus) {
ptPiFromLambda = daughLambda.pt();
etaPiFromLambda = daughLambda.eta();
} else {
ptPrFromLambda = daughLambda.pt();
etaPrFromLambda = daughLambda.eta();
}
}
}
}
}
}
}

void processData(SelectedCandidates const& candidates)
{
// Filling candidate properties
Expand Down Expand Up @@ -806,6 +879,14 @@ struct HfTreeCreatorXicToXiPiPi {
if (fillGenParticleTable) {
rowCandidateFullParticles.reserve(particles.size());
for (const auto& particle : particles) {
float ptPi0{-1.f}, ptPi1{-1.f}, ptPiBachelor{-1.f}, ptPiFromLambda{-1.f}, ptPrFromLambda{-1.f};
float etaPi0{-1.f}, etaPi1{-1.f}, etaPiBachelor{-1.f}, etaPiFromLambda{-1.f}, etaPrFromLambda{-1.f};
if (fillGenInfoForAcceptance) {
if (!TESTBIT(particle.flagMcMatchGen(), aod::hf_cand_xic_to_xi_pi_pi::DecayType::XicToXiPiPi) && !TESTBIT(particle.flagMcMatchGen(), aod::hf_cand_xic_to_xi_pi_pi::DecayType::XicToXiResPiToXiPiPi)) { // we cannot filter, otherwise we have no daughter particles in the filtered table
continue;
}
getMcDaughterInformation(particles, particle, ptPi0, ptPi1, ptPiBachelor, ptPiFromLambda, ptPrFromLambda, etaPi0, etaPi1, etaPiBachelor, etaPiFromLambda, etaPrFromLambda);
}
rowCandidateFullParticles(
particle.flagMcMatchGen(),
particle.originMcGen(),
Expand All @@ -814,7 +895,17 @@ struct HfTreeCreatorXicToXiPiPi {
particle.eta(),
particle.phi(),
RecoDecay::y(particle.pVector(), o2::constants::physics::MassXiCPlus),
particle.decayLengthMcGen());
particle.decayLengthMcGen(),
ptPi0,
ptPi1,
ptPiBachelor,
ptPiFromLambda,
ptPrFromLambda,
etaPi0,
etaPi1,
etaPiBachelor,
etaPiFromLambda,
etaPrFromLambda);
}
}
}
Expand Down Expand Up @@ -860,6 +951,14 @@ struct HfTreeCreatorXicToXiPiPi {
if (fillGenParticleTable) {
rowCandidateFullParticles.reserve(particles.size());
for (const auto& particle : particles) {
float ptPi0{-1.f}, ptPi1{-1.f}, ptPiBachelor{-1.f}, ptPiFromLambda{-1.f}, ptPrFromLambda{-1.f};
float etaPi0{-1.f}, etaPi1{-1.f}, etaPiBachelor{-1.f}, etaPiFromLambda{-1.f}, etaPrFromLambda{-1.f};
if (fillGenInfoForAcceptance) {
if (!TESTBIT(particle.flagMcMatchGen(), aod::hf_cand_xic_to_xi_pi_pi::DecayType::XicToXiPiPi) && !TESTBIT(particle.flagMcMatchGen(), aod::hf_cand_xic_to_xi_pi_pi::DecayType::XicToXiResPiToXiPiPi)) { // we cannot filter, otherwise we have no daughter particles in the filtered table
continue;
}
getMcDaughterInformation(particles, particle, ptPi0, ptPi1, ptPiBachelor, ptPiFromLambda, ptPrFromLambda, etaPi0, etaPi1, etaPiBachelor, etaPiFromLambda, etaPrFromLambda);
}
rowCandidateFullParticles(
particle.flagMcMatchGen(),
particle.originMcGen(),
Expand All @@ -868,7 +967,17 @@ struct HfTreeCreatorXicToXiPiPi {
particle.eta(),
particle.phi(),
RecoDecay::y(particle.pVector(), o2::constants::physics::MassXiCPlus),
particle.decayLengthMcGen());
particle.decayLengthMcGen(),
ptPi0,
ptPi1,
ptPiBachelor,
ptPiFromLambda,
ptPrFromLambda,
etaPi0,
etaPi1,
etaPiBachelor,
etaPiFromLambda,
etaPrFromLambda);
}
}
}
Expand Down Expand Up @@ -906,6 +1015,15 @@ struct HfTreeCreatorXicToXiPiPi {
if (fillGenParticleTable) {
rowCandidateFullParticles.reserve(particles.size());
for (const auto& particle : particles) {
float ptPi0{-1.f}, ptPi1{-1.f}, ptPiBachelor{-1.f}, ptPiFromLambda{-1.f}, ptPrFromLambda{-1.f};
float etaPi0{-1.f}, etaPi1{-1.f}, etaPiBachelor{-1.f}, etaPiFromLambda{-1.f}, etaPrFromLambda{-1.f};
if (fillGenInfoForAcceptance) {
if (!TESTBIT(particle.flagMcMatchGen(), aod::hf_cand_xic_to_xi_pi_pi::DecayType::XicToXiPiPi) && !TESTBIT(particle.flagMcMatchGen(), aod::hf_cand_xic_to_xi_pi_pi::DecayType::XicToXiResPiToXiPiPi)) { // we cannot filter, otherwise we have no daughter particles in the filtered table
continue;
}
getMcDaughterInformation(particles, particle, ptPi0, ptPi1, ptPiBachelor, ptPiFromLambda, ptPrFromLambda, etaPi0, etaPi1, etaPiBachelor, etaPiFromLambda, etaPrFromLambda);
}

rowCandidateFullParticles(
particle.flagMcMatchGen(),
particle.originMcGen(),
Expand All @@ -914,7 +1032,17 @@ struct HfTreeCreatorXicToXiPiPi {
particle.eta(),
particle.phi(),
RecoDecay::y(particle.pVector(), o2::constants::physics::MassXiCPlus),
particle.decayLengthMcGen());
particle.decayLengthMcGen(),
ptPi0,
ptPi1,
ptPiBachelor,
ptPiFromLambda,
ptPrFromLambda,
etaPi0,
etaPi1,
etaPiBachelor,
etaPiFromLambda,
etaPrFromLambda);
}
}
}
Expand Down
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