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feat: Add new features to the NonPromptCascadeTask (AliceO2Group#8881)
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@mpuccio
mpuccio authored Dec 9, 2024
1 parent 88139f2 commit f11e1e9
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Showing 2 changed files with 26 additions and 14 deletions.
6 changes: 6 additions & 0 deletions PWGLF/DataModel/LFNonPromptCascadeTables.h
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,9 @@ namespace o2::aod
namespace NPCascadeTable
{
DECLARE_SOA_COLUMN(MatchingChi2, matchingChi2, float);
DECLARE_SOA_COLUMN(DeltaPtITSCascade, deltaPtITSCascade, float);
DECLARE_SOA_COLUMN(ITSClusSize, itsClusSize, float);
DECLARE_SOA_COLUMN(HasReassociatedCluster, hasReassociatedCluster, bool);
DECLARE_SOA_COLUMN(IsGoodMatch, isGoodMatch, bool);
DECLARE_SOA_COLUMN(IsGoodCascade, isGoodCascade, bool);
DECLARE_SOA_COLUMN(PdgCodeMom, pdgCodeMom, int);
Expand Down Expand Up @@ -108,7 +110,9 @@ DECLARE_SOA_COLUMN(MCcollisionMatch, mcCollisionMatch, bool);
} // namespace NPCascadeTable
DECLARE_SOA_TABLE(NPCascTable, "AOD", "NPCASCTABLE",
NPCascadeTable::MatchingChi2,
NPCascadeTable::DeltaPtITSCascade,
NPCascadeTable::ITSClusSize,
NPCascadeTable::HasReassociatedCluster,
NPCascadeTable::PvX,
NPCascadeTable::PvY,
NPCascadeTable::PvZ,
Expand Down Expand Up @@ -162,7 +166,9 @@ DECLARE_SOA_TABLE(NPCascTable, "AOD", "NPCASCTABLE",

DECLARE_SOA_TABLE(NPCascTableMC, "AOD", "NPCASCTABLEMC",
NPCascadeTable::MatchingChi2,
NPCascadeTable::DeltaPtITSCascade,
NPCascadeTable::ITSClusSize,
NPCascadeTable::HasReassociatedCluster,
NPCascadeTable::IsGoodMatch,
NPCascadeTable::IsGoodCascade,
NPCascadeTable::PdgCodeMom,
Expand Down
34 changes: 20 additions & 14 deletions PWGLF/Tasks/Strangeness/nonPromptCascade.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.

#include <cmath>
#include <memory>
#include <string>
#include <vector>
Expand Down Expand Up @@ -47,7 +48,9 @@ struct NPCascCandidate {
int64_t trackITSID;
int64_t collisionID;
float matchingChi2;
float deltaPt;
float itsClusSize;
bool hasReassociatedCluster;
bool isGoodMatch;
bool isGoodCascade;
int pdgCodeMom;
Expand Down Expand Up @@ -292,7 +295,7 @@ struct NonPromptCascadeTask {
if (o2::base::Propagator::Instance()->propagateToDCA(primaryVertex, trackCovTrk, bz, 2.f, matCorr, &impactParameterTrk)) {
if (protonTrack.hasTPC() && pionTrack.hasTPC()) {
if (isOmega) {
registry.fill(HIST("h_dca_Omega"), TMath::Sqrt(impactParameterTrk.getR2()));
registry.fill(HIST("h_dca_Omega"), std::sqrt(impactParameterTrk.getR2()));
registry.fill(HIST("h_dcaxy_Omega"), impactParameterTrk.getY());
registry.fill(HIST("h_dcaz_Omega"), impactParameterTrk.getZ());
registry.fill(HIST("h_dcavspt_Omega"), impactParameterTrk.getY(), track.pt());
Expand All @@ -301,7 +304,7 @@ struct NonPromptCascadeTask {
}

if (protonTrack.hasTPC() && pionTrack.hasTPC()) {
registry.fill(HIST("h_dca_Xi"), TMath::Sqrt(impactParameterTrk.getR2()));
registry.fill(HIST("h_dca_Xi"), std::sqrt(impactParameterTrk.getR2()));
registry.fill(HIST("h_dcaxy_Xi"), impactParameterTrk.getY());
registry.fill(HIST("h_dcaz_Xi"), impactParameterTrk.getZ());
registry.fill(HIST("h_dcavspt_Xi"), impactParameterTrk.getY(), track.pt());
Expand Down Expand Up @@ -432,6 +435,7 @@ struct NonPromptCascadeTask {
o2::track::TrackParCov trackParCovV0;
o2::track::TrackPar trackParV0;
o2::track::TrackPar trackParBachelor;
std::array<float, 3> cascadeMomentum;

float cascCpa = -1;
float v0Cpa = -1;
Expand All @@ -446,10 +450,9 @@ struct NonPromptCascadeTask {
trackParBachelor = df2.getTrackParamAtPCA(1);
trackParV0.getPxPyPzGlo(momenta[0]); // getting the V0 momentum
trackParBachelor.getPxPyPzGlo(momenta[1]); // getting the bachelor momentum
std::array<float, 3> pVec;
df2.createParentTrackParCov().getPxPyPzGlo(pVec);
df2.createParentTrackParCov().getPxPyPzGlo(cascadeMomentum);
std::array<float, 3> pvPos = {primaryVertex.getX(), primaryVertex.getY(), primaryVertex.getZ()};
cascCpa = RecoDecay::cpa(pvPos, df2.getPCACandidate(), pVec);
cascCpa = RecoDecay::cpa(pvPos, df2.getPCACandidate(), cascadeMomentum);
v0Cpa = RecoDecay::cpa(pvPos, df2.getPCACandidate(), momenta[0]);
} else {
continue;
Expand Down Expand Up @@ -599,8 +602,9 @@ struct NonPromptCascadeTask {
pdgCodeMom = track.mcParticle().has_mothers() ? track.mcParticle().mothers_as<aod::McParticles>()[0].pdgCode() : 0;
}
int itsTrackPDG = ITStrack.has_mcParticle() ? ITStrack.mcParticle().pdgCode() : 0;

candidates.emplace_back(NPCascCandidate{track.globalIndex(), ITStrack.globalIndex(), trackedCascade.collisionId(), trackedCascade.matchingChi2(), trackedCascade.itsClsSize(), isGoodMatch, isGoodCascade, pdgCodeMom, itsTrackPDG, std::get<0>(fromHF), std::get<1>(fromHF),
float deltaPtITSCascade = std::hypot(cascadeMomentum[0], cascadeMomentum[1]) - ITStrack.pt();
bool hasReassociatedClusters = (track.itsNCls() != ITStrack.itsNCls());
candidates.emplace_back(NPCascCandidate{track.globalIndex(), ITStrack.globalIndex(), trackedCascade.collisionId(), trackedCascade.matchingChi2(), deltaPtITSCascade, trackedCascade.itsClsSize(), hasReassociatedClusters, isGoodMatch, isGoodCascade, pdgCodeMom, itsTrackPDG, std::get<0>(fromHF), std::get<1>(fromHF),
primaryVertex.getX(), primaryVertex.getY(), primaryVertex.getZ(),
track.pt(), track.eta(), track.phi(),
protonTrack.pt(), protonTrack.eta(), pionTrack.pt(), pionTrack.eta(), bachelor.pt(), bachelor.eta(),
Expand Down Expand Up @@ -629,7 +633,7 @@ struct NonPromptCascadeTask {
auto mcCollision = particle.mcCollision_as<aod::McCollisions>();
auto label = collisions.iteratorAt(c.collisionID);

NPCTableMC(c.matchingChi2, c.itsClusSize, c.isGoodMatch, c.isGoodCascade, c.pdgCodeMom, c.pdgCodeITStrack, c.isFromBeauty, c.isFromCharm,
NPCTableMC(c.matchingChi2, c.deltaPt, c.itsClusSize, c.hasReassociatedCluster, c.isGoodMatch, c.isGoodCascade, c.pdgCodeMom, c.pdgCodeITStrack, c.isFromBeauty, c.isFromCharm,
c.pvX, c.pvY, c.pvZ,
c.cascPt, c.cascEta, c.cascPhi,
c.protonPt, c.protonEta, c.pionPt, c.pionEta, c.bachPt, c.bachEta,
Expand Down Expand Up @@ -691,6 +695,7 @@ struct NonPromptCascadeTask {
const auto& ntrack = v0.negTrack_as<TracksExtData>();
const auto& protonTrack = bachelor.sign() > 0 ? ntrack : ptrack;
const auto& pionTrack = bachelor.sign() > 0 ? ptrack : ntrack;
bool hasReassociatedClusters = (track.itsNCls() != ITStrack.itsNCls());

std::array<std::array<float, 3>, 2> momenta;
std::array<double, 2> masses;
Expand All @@ -699,6 +704,7 @@ struct NonPromptCascadeTask {
o2::track::TrackParCov trackParCovV0;
o2::track::TrackPar trackParV0;
o2::track::TrackPar trackParBachelor;
std::array<float, 3> cascadeMomentum;

float cascCpa = -1;
float v0Cpa = -1;
Expand All @@ -713,17 +719,17 @@ struct NonPromptCascadeTask {
trackParBachelor = df2.getTrackParamAtPCA(1);
trackParV0.getPxPyPzGlo(momenta[0]); // getting the V0 momentum
trackParBachelor.getPxPyPzGlo(momenta[1]); // getting the bachelor momentum
std::array<float, 3> pVec;
df2.createParentTrackParCov().getPxPyPzGlo(pVec);
df2.createParentTrackParCov().getPxPyPzGlo(cascadeMomentum);
std::array<float, 3> pvPos = {primaryVertex.getX(), primaryVertex.getY(), primaryVertex.getZ()};
cascCpa = RecoDecay::cpa(pvPos, df2.getPCACandidate(), pVec);
cascCpa = RecoDecay::cpa(pvPos, df2.getPCACandidate(), cascadeMomentum);
v0Cpa = RecoDecay::cpa(pvPos, df2.getPCACandidate(), momenta[0]);
} else {
continue;
}
} else {
continue;
}
float deltaPtITSCascade = std::hypot(cascadeMomentum[0], cascadeMomentum[1]) - ITStrack.pt();

// PV
registry.fill(HIST("h_PV_x"), primaryVertex.getX());
Expand All @@ -745,7 +751,7 @@ struct NonPromptCascadeTask {
const auto v0mass = RecoDecay::m(momenta, masses);

////Omega hypohesis -> rejecting Xi
if (TMath::Abs(massXi - constants::physics::MassXiMinus) > 0.005) {
if (std::abs(massXi - constants::physics::MassXiMinus) > 0.005) {
isOmega = true;
invMassBCOmega->Fill(massOmega);
}
Expand Down Expand Up @@ -849,7 +855,7 @@ struct NonPromptCascadeTask {
daughtersDCA dDCA;
fillDauDCA(trackedCascade, bachelor, protonTrack, pionTrack, primaryVertex, isOmega, dDCA);

candidates.emplace_back(NPCascCandidate{track.globalIndex(), ITStrack.globalIndex(), trackedCascade.collisionId(), trackedCascade.matchingChi2(), trackedCascade.itsClsSize(), 0, 0, 0, 0, 0, 0,
candidates.emplace_back(NPCascCandidate{track.globalIndex(), ITStrack.globalIndex(), trackedCascade.collisionId(), trackedCascade.matchingChi2(), deltaPtITSCascade, trackedCascade.itsClsSize(), hasReassociatedClusters, 0, 0, 0, 0, 0, 0,
primaryVertex.getX(), primaryVertex.getY(), primaryVertex.getZ(),
track.pt(), track.eta(), track.phi(),
protonTrack.pt(), protonTrack.eta(), pionTrack.pt(), pionTrack.eta(), bachelor.pt(), bachelor.eta(),
Expand All @@ -865,7 +871,7 @@ struct NonPromptCascadeTask {

for (auto& c : candidates) {

NPCTable(c.matchingChi2, c.itsClusSize,
NPCTable(c.matchingChi2, c.deltaPt, c.itsClusSize, c.hasReassociatedCluster,
c.pvX, c.pvY, c.pvZ,
c.cascPt, c.cascEta, c.cascPhi,
c.protonPt, c.protonEta, c.pionPt, c.pionEta, c.bachPt, c.bachEta,
Expand Down

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