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[PWGHF] Update tree creator for Xic0Omegac0 #16421

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0f8ebed
First commit to update treeCreatorToXiPiQa.cxx
May 27, 2026
585a74f
Update output table & apply appropriate mass hypothesis for Omegac0
May 27, 2026
c87394a
Please consider the following formatting changes
alibuild May 27, 2026
6912c7e
Merge pull request #24 from alibuild/alibot-cleanup-16421
jinhyunni May 27, 2026
9953b75
Added helper function to fill in table for particle info
May 27, 2026
c923aed
Merge branch 'updateworkflow' of https://github.com/jinhyunni/O2Physi…
May 27, 2026
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188 changes: 166 additions & 22 deletions PWGHF/TableProducer/treeCreatorToXiPiQa.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@
/// \author Krista Smith <krista.lizbeth.smith@cern.ch>, Pusan National University

#include "PWGHF/Core/CentralityEstimation.h"
#include "PWGHF/Core/DecayChannelsLegacy.h"
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@vkucera vkucera May 27, 2026

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Where do you use this?

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@jinhyunni jinhyunni May 27, 2026 •
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This header was included to give option which provides the input configuration used to filter the MCParticles table. It was introduced to support different decay chains.

#include "PWGHF/DataModel/CandidateReconstructionTables.h"
#include "PWGHF/DataModel/CandidateSelectionTables.h"

Expand All @@ -38,6 +39,7 @@

using namespace o2;
using namespace o2::framework;
using namespace o2::framework::expressions;

// SV Reco method
enum {
Expand Down Expand Up @@ -124,6 +126,8 @@ DECLARE_SOA_COLUMN(EtaPiFromCasc, etaPiFromCasc, float);
DECLARE_SOA_COLUMN(EtaPiFromCharmBaryon, etaPiFromCharmBaryon, float);
DECLARE_SOA_COLUMN(EtaCharmBaryon, etaCharmBaryon, float);
DECLARE_SOA_COLUMN(EtaCascade, etaCascade, float);
DECLARE_SOA_COLUMN(PhiCharmBaryon, phiCharmBaryon, float);
DECLARE_SOA_COLUMN(YCharmBaryon, yCharmBaryon, float);
DECLARE_SOA_COLUMN(EtaV0, etaV0, float);
DECLARE_SOA_COLUMN(DcaXYToPvV0Dau0, dcaXYToPvV0Dau0, float);
DECLARE_SOA_COLUMN(DcaXYToPvV0Dau1, dcaXYToPvV0Dau1, float);
Expand Down Expand Up @@ -212,6 +216,8 @@ DECLARE_SOA_COLUMN(CascChi2OverNdf, cascChi2OverNdf, float);
DECLARE_SOA_COLUMN(XicChi2OverNdf, xicChi2OverNdf, float);
DECLARE_SOA_COLUMN(MassV0Chi2OverNdf, massV0Chi2OverNdf, float);
DECLARE_SOA_COLUMN(MassCascChi2OverNdf, massCascChi2OverNdf, float);
// MC
DECLARE_SOA_COLUMN(ParticlePdg, particlePdg, int);
} // namespace full

DECLARE_SOA_TABLE(HfToXiPiEvs, "AOD", "HFTOXIPIEV",
Expand Down Expand Up @@ -303,6 +309,15 @@ DECLARE_SOA_TABLE(HfKfXicFulls, "AOD", "HFKFXICFULL",
full::ResultSelections,
full::FlagMcMatchRec, full::DebugMcRec, full::OriginRec, full::CollisionMatched);

DECLARE_SOA_TABLE(HfCandToXiPiGen, "AOD", "HFCANDTOXIPIGEN",
full::InvMassCharmBaryon,
full::PtCharmBaryon,
full::EtaCharmBaryon,
full::PhiCharmBaryon,
full::YCharmBaryon,
full::FlagMcMatchRec,
full::OriginRec,
full::ParticlePdg)
} // namespace o2::aod

/// Writes the full information in an output TTree
Expand All @@ -311,15 +326,21 @@ struct HfTreeCreatorToXiPiQa {
Produces<o2::aod::HfToXiPiFulls> rowCandidateFull;
Produces<o2::aod::HfToXiPiLites> rowCandidateLite;
Produces<o2::aod::HfKfXicFulls> rowKfCandidate;
Produces<o2::aod::HfCandToXiPiGen> rowCandidateParticles;
Produces<o2::aod::HfToXiPiEvs> rowEv;

Configurable<float> zPvCut{"zPvCut", 10., "Cut on absolute value of primary vertex z coordinate"};
Configurable<int8_t> genSelection{"genSelection", o2::aod::hf_cand_xic0_omegac0::DecayType::XiczeroToXiPi, "Decay channel to be used to match particle information"};
Configurable<bool> fillGenTable{"fillGenTable", true, "Fill generated MC information if requested"};

using MyTrackTable = soa::Join<aod::Tracks, aod::TrackSelection, aod::TracksExtra>;
using MyEventTable = soa::Join<aod::Collisions, aod::EvSels>;
using MyEventTableWithFT0C = soa::Join<aod::Collisions, aod::EvSels, aod::CentFT0Cs>;
using MyEventTableWithFT0M = soa::Join<aod::Collisions, aod::EvSels, aod::CentFT0Ms>;
using MyEventTableWithNTracksPV = soa::Join<aod::Collisions, aod::EvSels, aod::CentNTPVs>;
using MatchedGenXiPi = soa::Filtered<soa::Join<aod::McParticles, aod::HfXicToXiPiMCGen>>;

Filter filterGenXiPi = nabs(aod::hf_cand_mc_flag::flagMcMatchGen) == static_cast<int8_t>(BIT(genSelection));

void init(InitContext const&)
{
Expand Down Expand Up @@ -611,6 +632,19 @@ struct HfTreeCreatorToXiPiQa {
}
}

template <double massCharmBaryon, typename T>
void fillParticle(const T& particle)
{
rowCandidateParticles(RecoDecay::m(particle.pVector(), particle.e()),
particle.pt(),
particle.eta(),
particle.phi(),
RecoDecay::y(particle.pVector(), massCharmBaryon),
particle.flagMcMatchGen(),
particle.originMcGen(),
particle.pdgCode());
}

////////////////////////////////////
// //
// Process functions //
Expand Down Expand Up @@ -783,8 +817,10 @@ struct HfTreeCreatorToXiPiQa {
//*~~~~~~~MC with DCAFitter~~~~~~~~*//
//*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*//

void processMcFullXic0(MyEventTable const& collisions, MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfXicToXiPiMCRec> const& candidates)
void processMcFullXic0(MyEventTable const& collisions,
MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfXicToXiPiMCRec> const& candidates,
MatchedGenXiPi const& mcParticles)
{
// Filling event properties
rowEv.reserve(collisions.size());
Expand All @@ -797,10 +833,20 @@ struct HfTreeCreatorToXiPiQa {
for (const auto& candidate : candidates) {
fillCandidate<DCAFITTER, FULL, false, MyEventTable>(candidate, candidate.flagMcMatchRec(), candidate.debugMcRec(), candidate.originMcRec(), candidate.collisionMatched());
}

// Filling particle properties if requested
if (fillGenTable) {
rowCandidateParticles.reserve(mcParticles.size());
for (const auto& particle : mcParticles) {
fillParticle<o2::constants::physics::MassXiC0>(particle);
}
}
}

void processMcFullOmegac0(MyEventTable const& collisions, MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfOmegacToXiPiMCRec> const& candidates)
void processMcFullOmegac0(MyEventTable const& collisions,
MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfOmegacToXiPiMCRec> const& candidates,
MatchedGenXiPi const& mcParticles)
{
// Filling event properties
rowEv.reserve(collisions.size());
Expand All @@ -813,10 +859,20 @@ struct HfTreeCreatorToXiPiQa {
for (const auto& candidate : candidates) {
fillCandidate<DCAFITTER, FULL, false, MyEventTable>(candidate, candidate.flagMcMatchRec(), candidate.debugMcRec(), candidate.originMcRec(), candidate.collisionMatched());
}

// Filling particle properties if requested
if (fillGenTable) {
rowCandidateParticles.reserve(mcParticles.size());
for (const auto& particle : mcParticles) {
fillParticle<o2::constants::physics::MassOmegaC0>(particle);
}
}
}

void processMcLiteXic0(MyEventTable const& collisions, MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfXicToXiPiMCRec> const& candidates)
void processMcLiteXic0(MyEventTable const& collisions,
MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfXicToXiPiMCRec> const& candidates,
MatchedGenXiPi const& mcParticles)
{
// Filling event properties
rowEv.reserve(collisions.size());
Expand All @@ -829,10 +885,20 @@ struct HfTreeCreatorToXiPiQa {
for (const auto& candidate : candidates) {
fillCandidate<DCAFITTER, LITE, false, MyEventTable>(candidate, candidate.flagMcMatchRec(), -7, candidate.originMcRec(), candidate.collisionMatched());
}

// Filling particle properties if requested
if (fillGenTable) {
rowCandidateParticles.reserve(mcParticles.size());
for (const auto& particle : mcParticles) {
fillParticle<o2::constants::physics::MassXiC0>(particle);
}
}
}

void processMcLiteXic0WithFT0C(MyEventTableWithFT0C const& collisions, MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfXicToXiPiMCRec> const& candidates)
void processMcLiteXic0WithFT0C(MyEventTableWithFT0C const& collisions,
MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfXicToXiPiMCRec> const& candidates,
MatchedGenXiPi const& mcParticles)
{
// Filling event properties
rowEv.reserve(collisions.size());
Expand All @@ -845,10 +911,20 @@ struct HfTreeCreatorToXiPiQa {
for (const auto& candidate : candidates) {
fillCandidate<DCAFITTER, LITE, true, MyEventTableWithFT0C>(candidate, candidate.flagMcMatchRec(), -7, candidate.originMcRec(), candidate.collisionMatched());
}

// Filling particle properties if requested
if (fillGenTable) {
rowCandidateParticles.reserve(mcParticles.size());
for (const auto& particle : mcParticles) {
fillParticle<o2::constants::physics::MassXiC0>(particle);
}
}
}

void processMcLiteXic0WithFT0M(MyEventTableWithFT0M const& collisions, MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfXicToXiPiMCRec> const& candidates)
void processMcLiteXic0WithFT0M(MyEventTableWithFT0M const& collisions,
MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfXicToXiPiMCRec> const& candidates,
MatchedGenXiPi const& mcParticles)
{
// Filling event properties
rowEv.reserve(collisions.size());
Expand All @@ -861,10 +937,20 @@ struct HfTreeCreatorToXiPiQa {
for (const auto& candidate : candidates) {
fillCandidate<DCAFITTER, LITE, true, MyEventTableWithFT0M>(candidate, candidate.flagMcMatchRec(), -7, candidate.originMcRec(), candidate.collisionMatched());
}

// Filling particle properties if requested
if (fillGenTable) {
rowCandidateParticles.reserve(mcParticles.size());
for (const auto& particle : mcParticles) {
fillParticle<o2::constants::physics::MassXiC0>(particle);
}
}
}

void processMcLiteXic0WithNTracksPV(MyEventTableWithNTracksPV const& collisions, MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfXicToXiPiMCRec> const& candidates)
void processMcLiteXic0WithNTracksPV(MyEventTableWithNTracksPV const& collisions,
MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfXicToXiPiMCRec> const& candidates,
MatchedGenXiPi const& mcParticles)
{
// Filling event properties
rowEv.reserve(collisions.size());
Expand All @@ -877,10 +963,20 @@ struct HfTreeCreatorToXiPiQa {
for (const auto& candidate : candidates) {
fillCandidate<DCAFITTER, LITE, true, MyEventTableWithNTracksPV>(candidate, candidate.flagMcMatchRec(), -7, candidate.originMcRec(), candidate.collisionMatched());
}

// Filling particle properties if requested
if (fillGenTable) {
rowCandidateParticles.reserve(mcParticles.size());
for (const auto& particle : mcParticles) {
fillParticle<o2::constants::physics::MassXiC0>(particle);
}
}
}

void processMcLiteOmegac0(MyEventTable const& collisions, MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfOmegacToXiPiMCRec> const& candidates)
void processMcLiteOmegac0(MyEventTable const& collisions,
MyTrackTable const&,
soa::Join<aod::HfCandToXiPi, aod::HfSelToXiPi, aod::HfOmegacToXiPiMCRec> const& candidates,
MatchedGenXiPi const& mcParticles)
{
// Filling event properties
rowEv.reserve(collisions.size());
Expand All @@ -893,6 +989,14 @@ struct HfTreeCreatorToXiPiQa {
for (const auto& candidate : candidates) {
fillCandidate<DCAFITTER, LITE, false, MyEventTable>(candidate, candidate.flagMcMatchRec(), -7, candidate.originMcRec(), candidate.collisionMatched());
}

// Filling particle properties if requested
if (fillGenTable) {
rowCandidateParticles.reserve(mcParticles.size());
for (const auto& particle : mcParticles) {
fillParticle<o2::constants::physics::MassOmegaC0>(particle);
}
}
}

PROCESS_SWITCH(HfTreeCreatorToXiPiQa, processMcFullXic0, "Process MC with full information for xic0 w/o centrality", false);
Expand All @@ -906,8 +1010,10 @@ struct HfTreeCreatorToXiPiQa {
//*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*//
//*~~~~~~~MC with KFParticle~~~~~~~~*//
//*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*//
void processKfMcXic0(MyEventTable const& collisions, MyTrackTable const&,
soa::Join<aod::HfCandToXiPiKf, aod::HfSelToXiPiKf, aod::HfXicToXiPiMCRec> const& candidates)
void processKfMcXic0(MyEventTable const& collisions,
MyTrackTable const&,
soa::Join<aod::HfCandToXiPiKf, aod::HfSelToXiPiKf, aod::HfXicToXiPiMCRec> const& candidates,
MatchedGenXiPi const& mcParticles)
{
// Filling event properties
rowEv.reserve(collisions.size());
Expand All @@ -920,10 +1026,20 @@ struct HfTreeCreatorToXiPiQa {
for (const auto& candidate : candidates) {
fillCandidate<KFPARTICLE, FULL, false, MyEventTable>(candidate, candidate.flagMcMatchRec(), candidate.debugMcRec(), candidate.originMcRec(), candidate.collisionMatched());
}

// Filling particle properties if requested
if (fillGenTable) {
rowCandidateParticles.reserve(mcParticles.size());
for (const auto& particle : mcParticles) {
fillParticle<o2::constants::physics::MassXiC0>(particle);
}
}
}

void processKfMcXic0WithFT0C(MyEventTableWithFT0C const& collisions, MyTrackTable const&,
soa::Join<aod::HfCandToXiPiKf, aod::HfSelToXiPiKf, aod::HfXicToXiPiMCRec> const& candidates)
void processKfMcXic0WithFT0C(MyEventTableWithFT0C const& collisions,
MyTrackTable const&,
soa::Join<aod::HfCandToXiPiKf, aod::HfSelToXiPiKf, aod::HfXicToXiPiMCRec> const& candidates,
MatchedGenXiPi const& mcParticles)
{
// Filling event properties
rowEv.reserve(collisions.size());
Expand All @@ -936,10 +1052,20 @@ struct HfTreeCreatorToXiPiQa {
for (const auto& candidate : candidates) {
fillCandidate<KFPARTICLE, FULL, true, MyEventTableWithFT0C>(candidate, candidate.flagMcMatchRec(), candidate.debugMcRec(), candidate.originMcRec(), candidate.collisionMatched());
}

// Filling particle properties if requested
if (fillGenTable) {
rowCandidateParticles.reserve(mcParticles.size());
for (const auto& particle : mcParticles) {
fillParticle<o2::constants::physics::MassXiC0>(particle);
}
}
}

void processKfMcXic0WithFT0M(MyEventTableWithFT0M const& collisions, MyTrackTable const&,
soa::Join<aod::HfCandToXiPiKf, aod::HfSelToXiPiKf, aod::HfXicToXiPiMCRec> const& candidates)
void processKfMcXic0WithFT0M(MyEventTableWithFT0M const& collisions,
MyTrackTable const&,
soa::Join<aod::HfCandToXiPiKf, aod::HfSelToXiPiKf, aod::HfXicToXiPiMCRec> const& candidates,
MatchedGenXiPi const& mcParticles)
{
// Filling event properties
rowEv.reserve(collisions.size());
Expand All @@ -952,10 +1078,20 @@ struct HfTreeCreatorToXiPiQa {
for (const auto& candidate : candidates) {
fillCandidate<KFPARTICLE, FULL, true, MyEventTableWithFT0M>(candidate, candidate.flagMcMatchRec(), candidate.debugMcRec(), candidate.originMcRec(), candidate.collisionMatched());
}

// Filling particle properties if requested
if (fillGenTable) {
rowCandidateParticles.reserve(mcParticles.size());
for (const auto& particle : mcParticles) {
fillParticle<o2::constants::physics::MassXiC0>(particle);
}
}
}

void processKfMcXic0WithNTracksPV(MyEventTableWithNTracksPV const& collisions, MyTrackTable const&,
soa::Join<aod::HfCandToXiPiKf, aod::HfSelToXiPiKf, aod::HfXicToXiPiMCRec> const& candidates)
void processKfMcXic0WithNTracksPV(MyEventTableWithNTracksPV const& collisions,
MyTrackTable const&,
soa::Join<aod::HfCandToXiPiKf, aod::HfSelToXiPiKf, aod::HfXicToXiPiMCRec> const& candidates,
MatchedGenXiPi const& mcParticles)
{
// Filling event properties
rowEv.reserve(collisions.size());
Expand All @@ -968,6 +1104,14 @@ struct HfTreeCreatorToXiPiQa {
for (const auto& candidate : candidates) {
fillCandidate<KFPARTICLE, FULL, true, MyEventTableWithNTracksPV>(candidate, candidate.flagMcMatchRec(), candidate.debugMcRec(), candidate.originMcRec(), candidate.collisionMatched());
}

// Filling particle properties if requested
if (fillGenTable) {
rowCandidateParticles.reserve(mcParticles.size());
for (const auto& particle : mcParticles) {
fillParticle<o2::constants::physics::MassXiC0>(particle);
}
}
}

PROCESS_SWITCH(HfTreeCreatorToXiPiQa, processKfMcXic0, "Process MC with information for xic0", false);
Expand Down
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