Skip to content

[PWGLF] nonPromptCascade: cascade dca #18326

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
romainschotter merged 2 commits into from
Oct 16, 2026
Merged

[PWGLF] nonPromptCascade: cascade dca #18326

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
6e5e42e
dev: added v0dca and cascdce at sv and downscaling by tf
lietava Oct 15, 2026
5f844c1
clang
lietava Oct 15, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
11 changes: 11 additions & 0 deletions PWGLF/DataModel/LFNonPromptCascadeTables.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,9 @@ DECLARE_SOA_COLUMN(PionDCAz, pionDCAz, float);
DECLARE_SOA_COLUMN(BachDCAxy, bachDCAxy, float);
DECLARE_SOA_COLUMN(BachDCAz, bachDCAz, float);

DECLARE_SOA_COLUMN(CascDCADaughters, cascDCADaughters, float); // DCA between V0 and bachelor
DECLARE_SOA_COLUMN(V0DCADaughters, v0DCADaughters, float); // DCA between proton and pion

DECLARE_SOA_COLUMN(CascCosPA, casccosPA, float);
DECLARE_SOA_COLUMN(V0CosPA, v0cosPA, float);

Expand Down Expand Up @@ -167,6 +170,8 @@ DECLARE_SOA_TABLE(NPCascTable, "AOD", "NPCASCTABLE",
NPCascadeTable::PionDCAz,
NPCascadeTable::BachDCAxy,
NPCascadeTable::BachDCAz,
NPCascadeTable::CascDCADaughters,
NPCascadeTable::V0DCADaughters,
NPCascadeTable::CascCosPA,
NPCascadeTable::V0CosPA,
NPCascadeTable::MassXi,
Expand Down Expand Up @@ -235,6 +240,8 @@ DECLARE_SOA_TABLE(NPCascTableNT, "AOD", "NPCASCTABLENT",
NPCascadeTable::PionDCAz,
NPCascadeTable::BachDCAxy,
NPCascadeTable::BachDCAz,
NPCascadeTable::CascDCADaughters,
NPCascadeTable::V0DCADaughters,
NPCascadeTable::CascCosPA,
NPCascadeTable::V0CosPA,
NPCascadeTable::MassXi,
Expand Down Expand Up @@ -309,6 +316,8 @@ DECLARE_SOA_TABLE(NPCascTableMC, "AOD", "NPCASCTABLEMC",
NPCascadeTable::PionDCAz,
NPCascadeTable::BachDCAxy,
NPCascadeTable::BachDCAz,
NPCascadeTable::CascDCADaughters,
NPCascadeTable::V0DCADaughters,
NPCascadeTable::CascCosPA,
NPCascadeTable::V0CosPA,
NPCascadeTable::MassXi,
Expand Down Expand Up @@ -396,6 +405,8 @@ DECLARE_SOA_TABLE(NPCascTableMCNT, "AOD", "NPCASCTABLEMCNT",
NPCascadeTable::PionDCAz,
NPCascadeTable::BachDCAxy,
NPCascadeTable::BachDCAz,
NPCascadeTable::CascDCADaughters,
NPCascadeTable::V0DCADaughters,
NPCascadeTable::CascCosPA,
NPCascadeTable::V0CosPA,
NPCascadeTable::MassXi,
Expand Down
43 changes: 40 additions & 3 deletions PWGLF/Tasks/Strangeness/nonPromptCascade.cxx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,7 @@
#include <Framework/HistogramSpec.h>
#include <Framework/InitContext.h>
#include <Framework/O2DatabasePDGPlugin.h>
#include <Framework/ProcessingContext.h>
#include <Framework/runDataProcessing.h>
#include <ReconstructionDataFormats/DCA.h>
#include <ReconstructionDataFormats/Track.h>
Expand Down Expand Up @@ -110,6 +111,8 @@ struct NPCascCandidate {
float pionDCAz;
float bachDCAxy;
float bachDCAz;
float cascDCADaughters;
float v0DCADaughters;
float casccosPA;
float v0cosPA;
double massXi;
Expand Down Expand Up @@ -233,6 +236,7 @@ struct NonPromptCascadeTask {
Configurable<float> cfgMaxMult{"cfgMaxMult", 8000.f, "Upper range of multiplicty histo"};
Configurable<float> cfgMaxMultFV0{"cfgMaxMultFV0", 10000.f, "Upper range of multiplicty FV0 histo"};
Configurable<std::string> cfgPtEdgesdNdeta{"ptEdges", "0,0.2,0.4,0.6,0.8,1,1.2,1.6,2.0,2.4,2.8,3.2,3.6,4,4.5,5,5.5,6,7,8,10", "Pt bin edges (comma-separated)"};
Configurable<int> cfgDownscaleCascTF{"cfgDownscaleCascTF", 1, "Keep one in every N input timeframes for cascade reco and generator output (1 keeps all)"};
Configurable<int> cfgDownscaleMB{"cfgDownscaleMB", 1, "Downscaling for pile up study sample"};
Configurable<double> cfgEtaCutdNdeta{"cfgEtaCutdNdeta", 0.8, "Eta cut for charged tracks"};

Expand All @@ -241,6 +245,8 @@ struct NonPromptCascadeTask {
SliceCache cache;

Service<o2::ccdb::BasicCCDBManager> mCCDB;
uint64_t mTimeframeCount = 0;
bool mKeepTimeframe = true;
int mRunNumber = 0;
float mBz = 0.f;
o2::vertexing::DCAFitterN<2> mDCAFitter;
Expand Down Expand Up @@ -272,8 +278,21 @@ struct NonPromptCascadeTask {
}
}

// The framework calls run once before all enabled process functions for a timeframe.
void run(ProcessingContext&)
{
mKeepTimeframe = (mTimeframeCount++ % static_cast<uint64_t>(cfgDownscaleCascTF.value)) == 0;
mRegistry.fill(HIST("hTimeframeSelection"), mKeepTimeframe ? 1.f : 0.f);
}

void init(InitContext& context)
{
if (cfgDownscaleCascTF.value < 1) {
LOG(fatal) << "cfgDownscaleCascTF must be at least 1";
}
auto timeframeSelection = mRegistry.add<TH1>("hTimeframeSelection", ";Timeframe selection;Timeframes", HistType::kTH1D, {{2, -0.5, 1.5}});
timeframeSelection->GetXaxis()->SetBinLabel(1, "Skipped");
timeframeSelection->GetXaxis()->SetBinLabel(2, "Kept");
mZorroSummary.setObject(mZorro.getZorroSummary());
mCCDB->setURL(ccdbUrl);
mCCDB->setFatalWhenNull(true);
Expand Down Expand Up @@ -529,11 +548,14 @@ struct NonPromptCascadeTask {
o2::math_utils::SVector<double, 3> cascadePos, v0Pos;

float cascCpa = -1, v0Cpa = -1;
float cascDCADaughters = -1.f, v0DCADaughters = -1.f;
o2::track::TrackParCov ntCascadeTrack;
if (mDCAFitter.process(pionTrkParCov, protonTrkParCov)) {
v0DCADaughters = std::sqrt(mDCAFitter.getChi2AtPCACandidate());
auto trackParCovV0 = mDCAFitter.createParentTrackParCov(0); // V0 track retrieved from p and pi daughters
v0Pos = mDCAFitter.getPCACandidate();
if (mDCAFitter.process(trackParCovV0, bachTrkParCov)) {
cascDCADaughters = std::sqrt(mDCAFitter.getChi2AtPCACandidate());
mDCAFitter.getTrackParamAtPCA(0).getPxPyPzGlo(momenta[0]);
mDCAFitter.getTrackParamAtPCA(1).getPxPyPzGlo(momenta[1]);
ntCascadeTrack = mDCAFitter.createParentTrackParCov();
Expand Down Expand Up @@ -655,7 +677,7 @@ struct NonPromptCascadeTask {
cascadeLvector.pt(), cascadeLvector.eta(), cascadeLvector.phi(),
protonTrack.pt(), protonTrack.eta(), pionTrack.pt(), pionTrack.eta(), bachelor.pt(), bachelor.eta(),
motherDCA.getY(), motherDCA.getZ(), protonDCA.getY(), protonDCA.getZ(), pionDCA.getY(), pionDCA.getZ(), bachDCA.getY(), bachDCA.getZ(),
cascCpa, v0Cpa, massXi, massOmega, v0mass,
cascDCADaughters, v0DCADaughters, cascCpa, v0Cpa, massXi, massOmega, v0mass,
static_cast<float>(std::hypot(cascadePos[0], cascadePos[1])), static_cast<float>(std::hypot(v0Pos[0], v0Pos[1])), static_cast<float>(std::hypot(cascadePos[0], cascadePos[1], cascadePos[2])), static_cast<float>(std::hypot(v0Pos[0], v0Pos[1], v0Pos[2])),
cascITSclusters, protonTrack.itsNCls(), pionTrack.itsNCls(), bachelor.itsNCls(), protonTrack.tpcNClsFound(), pionTrack.tpcNClsFound(), bachelor.tpcNClsFound(),
protonTrack.tpcNSigmaPr(), pionTrack.tpcNSigmaPi(), bachelor.tpcNSigmaKa(), bachelor.tpcNSigmaPi(),
Expand All @@ -673,7 +695,7 @@ struct NonPromptCascadeTask {
c.cascPt, c.cascEta, c.cascPhi,
c.protonPt, c.protonEta, c.pionPt, c.pionEta, c.bachPt, c.bachEta,
c.cascDCAxy, c.cascDCAz, c.protonDCAxy, c.protonDCAz, c.pionDCAxy, c.pionDCAz, c.bachDCAxy, c.bachDCAz,
c.casccosPA, c.v0cosPA,
c.cascDCADaughters, c.v0DCADaughters, c.casccosPA, c.v0cosPA,
c.massXi, c.massOmega, c.massV0,
c.cascRadius, c.v0radius, c.cascLength, c.v0length,
c.cascNClusITS, c.protonNClusITS, c.pionNClusITS, c.bachNClusITS, c.protonNClusTPC, c.pionNClusTPC, c.bachNClusTPC,
Expand Down Expand Up @@ -712,7 +734,7 @@ struct NonPromptCascadeTask {
c.pvContributors, c.cascPVContribs, c.pvTimeResolution, c.pvX, c.pvY, c.pvZ, c.cascPt, c.cascEta, c.cascPhi,
c.protonPt, c.protonEta, c.pionPt, c.pionEta, c.bachPt, c.bachEta,
c.cascDCAxy, c.cascDCAz, c.protonDCAxy, c.protonDCAz, c.pionDCAxy, c.pionDCAz, c.bachDCAxy, c.bachDCAz,
c.casccosPA, c.v0cosPA, c.massXi, c.massOmega, c.massV0, c.cascRadius, c.v0radius, c.cascLength, c.v0length,
c.cascDCADaughters, c.v0DCADaughters, c.casccosPA, c.v0cosPA, c.massXi, c.massOmega, c.massV0, c.cascRadius, c.v0radius, c.cascLength, c.v0length,
c.cascNClusITS, c.protonNClusITS, c.pionNClusITS, c.bachNClusITS, c.protonNClusTPC, c.pionNClusTPC, c.bachNClusTPC, c.protonTPCNSigma,
c.pionTPCNSigma, c.bachKaonTPCNSigma, c.bachPionTPCNSigma, c.protonHasTOF, c.pionHasTOF, c.bachHasTOF,
c.protonTOFNSigma, c.pionTOFNSigma, c.bachKaonTOFNSigma, c.bachPionTOFNSigma,
Expand Down Expand Up @@ -748,6 +770,9 @@ struct NonPromptCascadeTask {
aod::V0s const& /*v0s*/, TracksExtMC const& tracks,
aod::McParticles const& mcParticles, aod::McCollisions const&, aod::BCsWithTimestamps const&)
{
if (!mKeepTimeframe) {
return;
}
fillCandidatesVector<TracksExtMC>(collisions, tracks, trackedCascades, gCandidates);
fillMCtable<aod::AssignedTrackedCascades>(mcParticles, collisions, gCandidates);
}
Expand All @@ -757,6 +782,9 @@ struct NonPromptCascadeTask {
aod::V0s const& /*v0s*/, TracksExtMC const& tracks,
aod::McParticles const& mcParticles, aod::McCollisions const&, aod::BCsWithTimestamps const&)
{
if (!mKeepTimeframe) {
return;
}
fillCandidatesVector<TracksExtMC>(collisions, tracks, cascades, gCandidatesNT);
fillMCtable<aod::Cascades>(mcParticles, collisions, gCandidatesNT);
// fillMultHistos<CollisionCandidatesRun3MC>(collisions);
Expand All @@ -765,6 +793,9 @@ struct NonPromptCascadeTask {

void processGenParticles(aod::McParticles const& mcParticles, aod::McCollisions const&)
{
if (!mKeepTimeframe) {
return;
}
for (const auto& p : mcParticles) {
auto absCode = std::abs(p.pdgCode());
if (absCode != 3312 && absCode != 3334) {
Expand Down Expand Up @@ -795,6 +826,9 @@ struct NonPromptCascadeTask {
aod::V0s const& /*v0s*/, TracksExtData const& tracks,
aod::BCsWithTimestamps const&)
{
if (!mKeepTimeframe) {
return;
}
mProcessCounter[0]++;
zorroAccounting(collisions);
fillCandidatesVector<TracksExtData>(collisions, tracks, trackedCascades, gCandidates);
Expand All @@ -806,6 +840,9 @@ struct NonPromptCascadeTask {
aod::V0s const& /*v0s*/, TracksExtData const& tracks,
aod::BCsWithTimestamps const&)
{
if (!mKeepTimeframe) {
return;
}
mProcessCounter[1]++;
zorroAccounting(collisions);
fillCandidatesVector<TracksExtData>(collisions, tracks, cascades, gCandidatesNT);
Expand Down
Loading