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[PWGLF] store signed pt of the candidate, swap hardcoded pdg codes for PDG_t #18235

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Merged
maciacco merged 1 commit into from
Oct 9, 2026
Merged

[PWGLF] store signed pt of the candidate, swap hardcoded pdg codes for PDG_t #18235

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4 changes: 2 additions & 2 deletions PWGLF/DataModel/LFDoubleOmegaTables.h
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@ namespace o2::aod

namespace DoubleOmegaTables
{
DECLARE_SOA_COLUMN(PtDoubleOmega, ptDoubleOmega, float);
DECLARE_SOA_COLUMN(PtDoubleOmega, ptDoubleOmega, float); // Signed transverse momentum of the double-Omega candidate, signed by the charge of the direct kaon.
DECLARE_SOA_COLUMN(EtaDoubleOmega, etaDoubleOmega, float);
DECLARE_SOA_COLUMN(PhiDoubleOmega, phiDoubleOmega, float);
DECLARE_SOA_COLUMN(DecayVtxX, decayVtxX, float);
Expand Down Expand Up @@ -55,7 +55,7 @@ DECLARE_SOA_COLUMN(MassDoubleOmega, massDoubleOmega, float);
DECLARE_SOA_COLUMN(MassOmega, massOmega, float);
DECLARE_SOA_COLUMN(MassXi, massXi, float);

DECLARE_SOA_COLUMN(GenPt, genPt, float);
DECLARE_SOA_COLUMN(GenPt, genPt, float); // Signed transverse momentum of the generated double-Omega candidate, signed by the charge of the direct kaon.
DECLARE_SOA_COLUMN(GenEta, genEta, float);
DECLARE_SOA_COLUMN(GenPhi, genPhi, float);
DECLARE_SOA_COLUMN(GenDecayLength, genDecayLength, float);
Expand Down
29 changes: 17 additions & 12 deletions PWGLF/TableProducer/Strangeness/doubleOmegaTreeCreator.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -96,6 +96,7 @@ struct DoubleOmegaCandidate {
float mass = -999.f;
float massOmega = -999.f;
float massXi = -999.f;
int8_t sign = 0;
};

struct DoubleOmegaMCInfo {
Expand All @@ -110,6 +111,7 @@ struct DoubleOmegaMCInfo {
std::array<float, 3> genProductionVertex{-999.f, -999.f, -999.f};
std::array<float, 3> genDecayVertex{-999.f, -999.f, -999.f};
std::array<float, 3> genOmegaDecayVertex{-999.f, -999.f, -999.f};
int8_t sign = 0;
};

struct LambdaCandidate {
Expand Down Expand Up @@ -669,6 +671,7 @@ struct doubleOmegaTreeCreator {
}
cand.massOmega = omega.massOmega;
cand.massXi = omega.massXi;
cand.sign = omega.sign;
return true;
}

Expand All @@ -681,9 +684,9 @@ struct doubleOmegaTreeCreator {

auto mcPosTrack = posTrack.template mcParticle_as<aod::McParticles>();
auto mcNegTrack = negTrack.template mcParticle_as<aod::McParticles>();
const int expectedPosPdg = sign < 0 ? 2212 : 211;
const int expectedNegPdg = sign < 0 ? -211 : -2212;
const int expectedLambdaPdg = sign < 0 ? 3122 : -3122;
const int expectedPosPdg = sign < 0 ? PDG_t::kProton : PDG_t::kPiPlus;
const int expectedNegPdg = sign < 0 ? PDG_t::kPiMinus : PDG_t::kProtonBar;
const int expectedLambdaPdg = sign < 0 ? PDG_t::kLambda0 : PDG_t::kLambda0Bar;
if (mcPosTrack.pdgCode() != expectedPosPdg || mcNegTrack.pdgCode() != expectedNegPdg) {
return -1;
}
Expand Down Expand Up @@ -712,8 +715,8 @@ struct doubleOmegaTreeCreator {

auto mcLambda = mcParticles.rawIteratorAt(lambdaLabel);
auto mcBachelor = bachelorTrack.template mcParticle_as<aod::McParticles>();
const int expectedBachelorPdg = sign < 0 ? -321 : 321;
const int expectedOmegaPdg = sign < 0 ? 3334 : -3334;
const int expectedBachelorPdg = sign < 0 ? PDG_t::kKMinus : PDG_t::kKPlus;
const int expectedOmegaPdg = sign < 0 ? PDG_t::kOmegaMinus : PDG_t::kOmegaPlusBar;
if (mcBachelor.pdgCode() != expectedBachelorPdg) {
return -1;
}
Expand Down Expand Up @@ -746,7 +749,7 @@ struct doubleOmegaTreeCreator {
auto mcOmega = mcParticles.rawIteratorAt(omegaLabel);
auto mcLambda = mcParticles.rawIteratorAt(lambdaLabel);
auto mcKaon = directKaonTrack.template mcParticle_as<aod::McParticles>();
const int expectedKaonPdg = sign < 0 ? -321 : 321;
const int expectedKaonPdg = sign < 0 ? PDG_t::kKMinus : PDG_t::kKPlus;
const int expectedDoubleOmegaPdg = sign < 0 ? kDoubleOmegaPdg : -kDoubleOmegaPdg;
if (mcKaon.pdgCode() != expectedKaonPdg) {
return false;
Expand All @@ -770,6 +773,7 @@ struct doubleOmegaTreeCreator {
mcOmega.vy() - omegaMother.vy(),
mcOmega.vz() - omegaMother.vz());
mcInfo.pdgCode = omegaMother.pdgCode();
mcInfo.sign = sign;
return true;
}
}
Expand All @@ -786,9 +790,9 @@ struct doubleOmegaTreeCreator {
}

const bool isMatter = particle.pdgCode() > 0;
const int expectedOmegaPdg = isMatter ? 3334 : -3334;
const int expectedLambdaPdg = isMatter ? 3122 : -3122;
const int expectedKaonPdg = isMatter ? -321 : 321;
const int expectedOmegaPdg = isMatter ? PDG_t::kOmegaMinus : PDG_t::kOmegaPlusBar;
const int expectedLambdaPdg = isMatter ? PDG_t::kLambda0 : PDG_t::kLambda0Bar;
const int expectedKaonPdg = isMatter ? PDG_t::kKMinus : PDG_t::kKPlus;
bool foundOmega = false;
bool foundLambda = false;
bool foundKaon = false;
Expand Down Expand Up @@ -825,6 +829,7 @@ struct doubleOmegaTreeCreator {
info.genProductionVertex = {particle.vx(), particle.vy(), particle.vz()};
info.genDecayVertex = decayVertex;
info.genOmegaDecayVertex = omegaDecayVertex;
info.sign = isMatter ? -1 : 1;
return true;
}

Expand All @@ -847,7 +852,7 @@ struct doubleOmegaTreeCreator {

void writeDataCandidate(DoubleOmegaCandidate const& cand)
{
doubleOmegaTable(cand.pt,
doubleOmegaTable(cand.pt * cand.sign,
cand.eta,
cand.phi,
cand.x,
Expand Down Expand Up @@ -879,7 +884,7 @@ struct doubleOmegaTreeCreator {

void writeMCCandidate(DoubleOmegaCandidate const& cand, DoubleOmegaMCInfo const& mcInfo, bool isReco)
{
doubleOmegaTableMC(cand.pt,
doubleOmegaTableMC(cand.pt * cand.sign,
cand.eta,
cand.phi,
cand.x,
Expand Down Expand Up @@ -907,7 +912,7 @@ struct doubleOmegaTreeCreator {
cand.mass,
cand.massOmega,
cand.massXi,
mcInfo.pt,
mcInfo.pt * mcInfo.sign,
mcInfo.eta,
mcInfo.phi,
mcInfo.decayLength,
Expand Down
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