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[PWGLF] Add DCA of non-tracked cascades #10692

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Merged
mpuccio merged 1 commit into from
Mar 28, 2025
Merged

[PWGLF] Add DCA of non-tracked cascades #10692

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6 changes: 5 additions & 1 deletion PWGLF/Tasks/Strangeness/nonPromptCascade.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -337,13 +337,15 @@ struct NonPromptCascadeTask {
o2::math_utils::SVector<double, 3> cascadePos, v0Pos;

float cascCpa = -1, v0Cpa = -1;
o2::track::TrackParCov ntCascadeTrack;
if (mDCAFitter.process(pionTrkParCov, protonTrkParCov)) {
auto trackParCovV0 = mDCAFitter.createParentTrackParCov(0); // V0 track retrieved from p and pi daughters
v0Pos = mDCAFitter.getPCACandidate();
if (mDCAFitter.process(trackParCovV0, bachTrkParCov)) {
mDCAFitter.getTrackParamAtPCA(0).getPxPyPzGlo(momenta[0]);
mDCAFitter.getTrackParamAtPCA(1).getPxPyPzGlo(momenta[1]);
mDCAFitter.createParentTrackParCov().getPxPyPzGlo(cascadeMomentum);
ntCascadeTrack = mDCAFitter.createParentTrackParCov();
ntCascadeTrack.getPxPyPzGlo(cascadeMomentum);
std::array<float, 3> pvPos = {primaryVertex.getX(), primaryVertex.getY(), primaryVertex.getZ()};
cascadePos = mDCAFitter.getPCACandidate();
cascCpa = RecoDecay::cpa(pvPos, mDCAFitter.getPCACandidate(), cascadeMomentum);
Expand Down Expand Up @@ -443,6 +445,8 @@ struct NonPromptCascadeTask {
}
itsTrackPDG = ITStrack.has_mcParticle() ? ITStrack.mcParticle().pdgCode() : 0;
}
} else {
o2::base::Propagator::Instance()->propagateToDCA(primaryVertex, ntCascadeTrack, mBz, 2.f, matCorr, &motherDCA);
}
candidates.emplace_back(NPCascCandidate{mcParticleID, trackedCascGlobalIndex, itsTrackGlobalIndex, candidate.collisionId(), matchingChi2, deltaPtITSCascade, deltaPtCascade, cascITSclsSize, hasReassociatedClusters, hasFakeReassociation, isGoodMatch, isGoodCascade, pdgCodeMom, itsTrackPDG, fromHF[0], fromHF[1],
collision.numContrib(), collision.collisionTimeRes(), primaryVertex.getX(), primaryVertex.getY(), primaryVertex.getZ(),
Expand Down