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[PWGLF] Omegahm: thnsparse for nult studies and for response of dN/deta #14110

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Merged
romainschotter merged 2 commits into from
Dec 7, 2025
Merged

[PWGLF] Omegahm: thnsparse for nult studies and for response of dN/deta #14110

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8f4460e
dev: use of thnsparse for mults and response
lietava Dec 7, 2025
68cf462
clang
lietava Dec 7, 2025
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209 changes: 153 additions & 56 deletions PWGLF/Tasks/Strangeness/nonPromptCascade.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -36,8 +36,10 @@
#include "ReconstructionDataFormats/Vertex.h"

#include "Math/Vector4D.h"
#include "TDatabasePDG.h"

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[pdg/database] 

Do not use TDatabasePDG directly. Use o2::constants::physics::Mass... or Service<o2::framework::O2DatabasePDG> instead.
#include "THnSparse.h"
#include "TParticlePDG.h"
#include "TTree.h"

#include <cmath>
#include <memory>
Expand Down Expand Up @@ -142,13 +144,13 @@
if (particle.has_mothers()) {
auto mom = particle.template mothers_as<aod::McParticles>()[0];
int pdgCodeMom = mom.pdgCode();
fromBeauty = std::abs(pdgCodeMom) / 5000 == 1 || std::abs(pdgCodeMom) / 500 == 1 || std::abs(pdgCodeMom) == 5;

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
fromCharm = std::abs(pdgCodeMom) / 4000 == 1 || std::abs(pdgCodeMom) / 400 == 1 || std::abs(pdgCodeMom) == 4;

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
while (mom.has_mothers()) {
const auto grandma = mom.template mothers_as<aod::McParticles>()[0];
int pdgCodeGrandma = std::abs(grandma.pdgCode());
fromBeauty = fromBeauty || (pdgCodeGrandma / 5000 == 1 || pdgCodeGrandma / 500 == 1 || pdgCodeGrandma == 5);

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
fromCharm = fromCharm || (pdgCodeGrandma / 4000 == 1 || pdgCodeGrandma / 400 == 1 || pdgCodeGrandma == 4);

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
mom = grandma;
}
}
Expand Down Expand Up @@ -185,6 +187,7 @@
using CollisionCandidatesRun3 = soa::Join<aod::Collisions, aod::EvSels, aod::FT0Mults, aod::FV0Mults, aod::CentFT0Cs, aod::CentFV0As, aod::CentFT0Ms, aod::MultsGlobal>;
using CollisionCandidatesRun3MC = soa::Join<aod::Collisions, aod::McCollisionLabels, aod::EvSels, aod::FT0Mults, aod::FV0Mults, aod::CentFT0Cs, aod::CentFV0As, aod::CentFT0Ms, aod::MultsGlobal>;
using CollisionsWithLabel = soa::Join<aod::Collisions, aod::McCollisionLabels, aod::MultsGlobal>;
using TracksWithLabel = soa::Join<aod::Tracks, aod::McTrackLabels>;

Preslice<TracksExtData> perCollision = aod::track::collisionId;
Preslice<TracksExtMC> perCollisionMC = aod::track::collisionId;
Expand Down Expand Up @@ -212,8 +215,7 @@

Configurable<float> cfgMaxMult{"cfgMaxMult", 8000.f, "Upper range of multiplicty histo"};
Configurable<float> cfgMaxMultFV0{"cfgMaxMultFV0", 10000.f, "Upper range of multiplicty FV0 histo"};
Configurable<float> cfgMinMult{"cfgMinMult", 3000.f, "Lower range of FT0M histo in zoomed histo"};
Configurable<float> cfgMaxCent{"cfgMaxCent", 8.0025f, "Upper range of FT0M 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)"};

Zorro mZorro;
OutputObj<ZorroSummary> mZorroSummary{"ZorroSummary"};
Expand All @@ -225,23 +227,11 @@
o2::vertexing::DCAFitterN<2> mDCAFitter;
std::array<int, 2> mProcessCounter = {0, 0}; // {Tracked, All}
std::map<uint64_t, uint32_t> mToiMap;
std::unordered_map<std::string, std::shared_ptr<TH2>> mHistsPerRunMultVsCent;
std::unordered_map<std::string, std::shared_ptr<TH2>> mHistsPerRunMultVsCentZoom;
std::unordered_map<std::string, std::shared_ptr<TH2>> mHistsPerRunNtracktVsCent;
std::unordered_map<std::string, std::shared_ptr<TH2>> mHistsPerRunNtracktVsCentZoom;

int nBinsMult = cfgMaxMult;
int nBinsMultFV0 = cfgMaxMultFV0;
int nBinsMultZoom = cfgMaxMult - cfgMinMult;
int nBinsCentZoom = (cfgMaxCent + 0.0025) / 0.005;

AxisSpec multAxis = {nBinsMult, 0, cfgMaxMult, "Multiplicity FT0M"};
AxisSpec multAxisFV0 = {nBinsMultFV0, 0, cfgMaxMultFV0, "Multiplicity FT0M"};
AxisSpec centAxis = {101, -0.025, 101.025, "Centrality"};
AxisSpec centAxisZoom = {nBinsCentZoom, -0.0025, cfgMaxCent, "Centrality"};
AxisSpec multAxisZoom = {nBinsMultZoom, cfgMinMult, cfgMaxMult, "Multiplicity FT0M"};
AxisSpec nTracksAxis = {100, 0., 100., "NTracksGlobal"};
AxisSpec nTracksAxisMC = {100, 0., 100., "NTracksMC"};
//
HistogramRegistry mRegistryMults{"Multhistos"};
HistogramRegistry mRegistrydNdeta{"dNdetahistos"};

//

void initCCDB(aod::BCsWithTimestamps::iterator const& bc)
{
Expand All @@ -262,7 +252,7 @@
}
}

void init(InitContext const&)
void init(InitContext& context)
{
mZorroSummary.setObject(mZorro.getZorroSummary());
mCCDB->setURL(ccdbUrl);
Expand All @@ -283,18 +273,77 @@
std::array<std::string, 7> cutsNames{"# candidates", "hasTOF", "nClusTPC", "nSigmaTPCbach", "nSigmaTPCprotontrack", "nSigmaTPCpiontrack", "cosPA"};
auto cutsOmega{std::get<std::shared_ptr<TH2>>(mRegistry.add("h_PIDcutsOmega", ";;Invariant mass (GeV/#it{c}^{2})", HistType::kTH2D, {{cutsNames.size(), -0.5, -0.5 + cutsNames.size()}, {125, 1.650, 1.700}}))};
auto cutsXi{std::get<std::shared_ptr<TH2>>(mRegistry.add("h_PIDcutsXi", ";;Invariant mass (GeV/#it{c}^{2})", HistType::kTH2D, {{6, -0.5, 5.5}, {125, 1.296, 1.346}}))};
mRegistry.add("hMultVsCent", "hMultVsCent", HistType::kTH2F, {centAxis, multAxis});
mRegistry.add("hMultVsCentZoom", "hMultVsCentZoom", HistType::kTH2F, {centAxisZoom, multAxisZoom});
mRegistry.add("hNTracksVsCent", "hNTracksVsCent", HistType::kTH2F, {centAxis, nTracksAxis});
mRegistry.add("hNTracksVsCentZoom", "hNTracksVsCentZoom", HistType::kTH2F, {centAxisZoom, nTracksAxis});
mRegistry.add("hMultFV0VshNTracks", "hMultFV0VshNTracks", HistType::kTH2F, {nTracksAxis, multAxisFV0});
mRegistry.add("hNTracksVsCentFV0A", "hNTracksVsCentFV0A", HistType::kTH2F, {nTracksAxis, centAxis});
mRegistry.add("hNTracksMCVsTracksReco", "hNTracksMCVsTracksReco", HistType::kTH2F, {nTracksAxisMC, nTracksAxis});
mRegistry.add("hNTracksMCNotInReco", "hNTracksMCNotInReco", HistType::kTH1F, {nTracksAxisMC});
for (size_t iBin{0}; iBin < cutsNames.size(); ++iBin) {
cutsOmega->GetYaxis()->SetBinLabel(iBin + 1, cutsNames[iBin].c_str());
cutsXi->GetYaxis()->SetBinLabel(iBin + 1, cutsNames[iBin].c_str());
}
//
int nBinsMult = cfgMaxMult;
int nBinsMultFV0 = cfgMaxMultFV0;

AxisSpec multAxis = {nBinsMult, 0, cfgMaxMult, "Multiplicity FT0M"};
AxisSpec multAxisFV0 = {nBinsMultFV0, 0, cfgMaxMultFV0, "Multiplicity FT0M"};
AxisSpec nTracksAxis = {100, 0., 100., "NTracksGlobal"};
AxisSpec nTracksAxisMC = {100, 0., 100., "NTracksMC"};
std::vector<double> centBinning;
std::vector<double> multBinning;
std::vector<double> trackBinning;
std::vector<double> runsBinning;
double cent = -0.0;
while (cent < 100) {
if (cent < 0.1) {
centBinning.push_back(cent);
cent += 0.01;
} else if (cent < 1) {
centBinning.push_back(cent);
cent += 0.1;
} else {
centBinning.push_back(cent);
cent += 1;
}
}
double ntracks = 0;
while (ntracks < 100) {
trackBinning.push_back(ntracks);
ntracks++;
}
double run = 550367 - 0.5;
for (int i = 0; i < 9000; i++) {
runsBinning.push_back(run);
run++;
}
AxisSpec centAxis{centBinning, "Centrality (%)"};
// AxisSpec multAxis{multBinning, "Multiplicity"};
AxisSpec trackAxisMC{trackBinning, "NTracks MC"};
AxisSpec trackAxis{trackBinning, "NTracks Global Reco"};
AxisSpec runsAxis{runsBinning, "Run Number"};

mRegistryMults.add("hCentMultsRuns", "hCentMultsRuns", HistType::kTHnSparseF, {centAxis, multAxis, centAxis, multAxisFV0, nTracksAxis, runsAxis});
//
// dN/deta
//
bool runMCdNdeta = context.options().get<bool>("processdNdetaMC");
// std::cout << "runMCdNdeta: " << runMCdNdeta << std::endl;
if (runMCdNdeta) {
std::vector<double> ptBins;
std::vector<std::string> tokens = o2::utils::Str::tokenize(cfgPtEdgesdNdeta, ',');
for (auto const& pts : tokens) {
double pt = 0;
try {
pt = std::stof(pts);
} catch (...) {
LOG(error) << "Wrong cfgPtEdgesdNdeta string:" << cfgPtEdgesdNdeta << std::endl;
}
ptBins.push_back(pt);
}
AxisSpec ptAxisMC{ptBins, "pT MC"};
AxisSpec ptAxisReco{ptBins, "pT Reco"};

// multMeasured, multMC, ptMeasured, ptMC
mRegistrydNdeta.add("hdNdetaRM/hdNdetaRM", "hdNdetaRM", HistType::kTHnSparseF, {nTracksAxisMC, nTracksAxis, ptAxisMC, ptAxisReco});
mRegistrydNdeta.add("hdNdetaRM/hdNdetaRMNotInRecoCol", "hdNdetaRMNotInRecoCol", HistType::kTHnSparseF, {nTracksAxisMC, ptAxisMC});
mRegistrydNdeta.add("hdNdetaRM/hdNdetaRMNotInRecoTrk", "hdNdetaRMNotInRecoTrk", HistType::kTHnSparseF, {nTracksAxisMC, ptAxisMC});
}
}

template <typename CollisionType, typename TrackType>
Expand Down Expand Up @@ -361,27 +410,13 @@
{
// std::cout << "Filling mult histos" << std::endl;
for (const auto& coll : collisions) {
std::string histNameMvC = "mult/hMultVsCent_run" + std::to_string(mRunNumber);
std::string histNameMvCZ = "mult/hMultVsCentZoom_run" + std::to_string(mRunNumber);
std::string histNameTvC = "mult/hNTracksVsCent_run" + std::to_string(mRunNumber);
std::string histNameTvCZ = "mult/hNTracksVsCentZoom_run" + std::to_string(mRunNumber);
if (!mHistsPerRunMultVsCent.contains(histNameMvC)) {
mHistsPerRunMultVsCent[histNameMvC] = std::get<std::shared_ptr<TH2>>(mRegistry.add(histNameMvC.c_str(), histNameMvC.c_str(), HistType::kTH2F, {centAxis, multAxis}));
mHistsPerRunMultVsCentZoom[histNameMvCZ] = std::get<std::shared_ptr<TH2>>(mRegistry.add(histNameMvCZ.c_str(), histNameMvCZ.c_str(), HistType::kTH2F, {centAxisZoom, multAxisZoom}));
mHistsPerRunNtracktVsCent[histNameTvC] = std::get<std::shared_ptr<TH2>>(mRegistry.add(histNameTvC.c_str(), histNameTvC.c_str(), HistType::kTH2F, {centAxis, nTracksAxis}));
mHistsPerRunNtracktVsCentZoom[histNameTvCZ] = std::get<std::shared_ptr<TH2>>(mRegistry.add(histNameTvCZ.c_str(), histNameTvCZ.c_str(), HistType::kTH2F, {centAxisZoom, nTracksAxis}));
}
mHistsPerRunMultVsCent[histNameMvC]->Fill(coll.centFT0M(), coll.multFT0M());
mHistsPerRunMultVsCentZoom[histNameMvCZ]->Fill(coll.centFT0M(), coll.multFT0M());
mHistsPerRunNtracktVsCent[histNameTvC]->Fill(coll.centFT0M(), coll.multNTracksGlobal());
mHistsPerRunNtracktVsCentZoom[histNameTvCZ]->Fill(coll.centFT0M(), coll.multNTracksGlobal());
// run integrated histos
mRegistry.fill(HIST("hMultVsCent"), coll.centFT0M(), coll.multFT0M());
mRegistry.fill(HIST("hMultVsCentZoom"), coll.centFT0M(), coll.multFT0M());
mRegistry.fill(HIST("hNTracksVsCent"), coll.centFT0M(), (float)coll.multNTracksGlobal());
mRegistry.fill(HIST("hNTracksVsCentZoom"), coll.centFT0M(), coll.multNTracksGlobal());
mRegistry.fill(HIST("hMultFV0VshNTracks"), coll.multNTracksGlobal(), coll.multFV0A());
mRegistry.fill(HIST("hNTracksVsCentFV0A"), coll.multNTracksGlobal(), coll.centFV0A());
float centFT0M = coll.centFT0M();
float multFT0M = coll.multFT0M();
float centFV0A = coll.centFV0A();
float multFV0A = coll.multFV0A();
float multNTracks = coll.multNTracksGlobal();
float run = mRunNumber;
mRegistryMults.fill(HIST("hCentMultsRuns"), centFT0M, multFT0M, centFV0A, multFV0A, multNTracks, run);
}
};

Expand Down Expand Up @@ -524,13 +559,13 @@
if (protonTrack.mcParticle().has_mothers() && pionTrack.mcParticle().has_mothers() && bachelor.mcParticle().has_mothers()) {
if (protonTrack.mcParticle().mothersIds()[0] == pionTrack.mcParticle().mothersIds()[0]) {
const auto v0part = protonTrack.mcParticle().template mothers_first_as<aod::McParticles>();
if (std::abs(v0part.pdgCode()) == 3122 && v0part.has_mothers()) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
const auto motherV0 = v0part.template mothers_as<aod::McParticles>()[0];
if (v0part.mothersIds()[0] == bachelor.mcParticle().mothersIds()[0]) {
if (std::abs(motherV0.pdgCode()) == 3312 || std::abs(motherV0.pdgCode()) == 3334) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
isGoodCascade = true;

isOmega = (std::abs(motherV0.pdgCode()) == 3334);

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
fromHF = isFromHF(motherV0);
mcParticleID = v0part.mothersIds()[0];
}
Expand Down Expand Up @@ -758,7 +793,7 @@
}
PROCESS_SWITCH(NonPromptCascadeTask, processCascadesData, "process cascades: Data analysis", false);

int getMCMult(aod::McParticles const& mcParticles, int mcCollId)
int getMCMult(aod::McParticles const& mcParticles, int mcCollId, std::vector<float>& ptMCvec)
{
int mult = 0;
for (auto const& mcp : mcParticles) {
Expand All @@ -767,7 +802,7 @@
bool accept = mcp.isPhysicalPrimary();
accept = accept && (mcp.eta() < 0.5) && (mcp.eta() > -0.5);
int q = 0;
auto pdgEntry = TDatabasePDG::Instance()->GetParticle(mcp.pdgCode());

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[pdg/database] 

Do not use TDatabasePDG directly. Use o2::constants::physics::Mass... or Service<o2::framework::O2DatabasePDG> instead.
if (pdgEntry) {
q = int(std::round(pdgEntry->Charge() / 3.0));
} else {
Expand All @@ -776,35 +811,97 @@
accept = accept && (q != 0);
if (accept) {
++mult;
ptMCvec.push_back(mcp.pt());
}
}
}
return mult;
}
void processNegMC(CollisionsWithLabel const& colls, aod::McCollisions const& mcCollisions, aod::McParticles const& mcParticles)
void processdNdetaMC(CollisionsWithLabel const& colls, aod::McCollisions const& mcCollisions, aod::McParticles const& mcParticles, TracksWithLabel const& tracks)
{
// std::cout << "ProcNegMC" << std::endl;
// Map: collision index -> reco multiplicity
std::vector<int> recoMult(colls.size(), 0);
for (auto const& trk : tracks) {
int collId = trk.collisionId();
// Here you can impose same track cuts as for MC (eta, primaries, etc.)
if (std::abs(trk.eta()) > 0.5f) {
continue;
}
++recoMult[collId];
}
std::vector<int> isReco(mcParticles.size(), 0);
std::vector<int> isRecoMult(mcParticles.size(), 0);
std::vector<int> mcReconstructed(mcCollisions.size(), 0);
// std::cout << " reco cols with mc:" << colls.size() << " tracks:" << tracks.size() << " mccols:" << mcCollisions.size() << "mcParticles:" << mcParticles.size() << std::endl;
for (auto const& col : colls) {
int mcCollId = col.mcCollisionId(); // col.template mcCollision_as<aod::McCollisions>();
int collId = col.globalIndex();
// auto mc = col.mcCollision();
// int mcId = mc.globalIndex();
// std::cout << "globalIndex:" << mcId << " colID:" << mcCollId << std::endl;
int mult = getMCMult(mcParticles, mcCollId);
std::vector<float> mcptvec;
float mult = getMCMult(mcParticles, mcCollId, mcptvec);
mcReconstructed[mcCollId] = 1;
mRegistry.fill(HIST("hNTracksMCVsTracksReco"), mult, col.multNTracksGlobal());
for (auto const& trk : tracks) {
int mcPid = trk.mcParticleId(); // depends on your label table
if (mcPid >= 0 && mcPid < (int)mcParticles.size()) {
isReco[mcPid] = 1;
isRecoMult[mcPid] = mult;
} else {
continue;
}
if (trk.collisionId() != collId) {
continue; // different event
}
auto mcPar = mcParticles.rawIteratorAt(mcPid);
// Apply same acceptance as in MC multiplicity
if (!mcPar.isPhysicalPrimary()) {
continue;
}
if (std::abs(mcPar.eta()) > 0.5f) {
continue;
}
int q = 0;
auto pdgEntry = TDatabasePDG::Instance()->GetParticle(mcPar.pdgCode());

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[pdg/database] 

Do not use TDatabasePDG directly. Use o2::constants::physics::Mass... or Service<o2::framework::O2DatabasePDG> instead.
if (pdgEntry) {
q = int(std::round(pdgEntry->Charge() / 3.0));
}
if (q == 0) {
continue;
}
// float multReco = recoMult[collId];
float multReco = col.multNTracksGlobal();
float ptReco = trk.pt();
float ptMC = mcPar.pt();
mRegistrydNdeta.fill(HIST("hdNdetaRM/hdNdetaRM"), mult, multReco, ptMC, ptReco);
}

// mRegistry.fill(HIST("hNTracksMCVsTracksReco"), mult, col.multNTracksGlobal());
}
// count mc particles with no reco tracks
for (auto const& mcp : mcParticles) {
int mcPidG = mcp.globalIndex();
// std::cout << "mcPidG:" << mcPidG << std::endl;
if (!isReco[mcPidG]) {
mRegistrydNdeta.fill(HIST("hdNdetaRM/hdNdetaRMNotInRecoTrk"), isRecoMult[mcPidG], mcp.pt());
}
}
// count unreconstructed mc collisions
for (auto const& mc : mcCollisions) {
int gindex = mc.globalIndex();
// std::cout << "mc globalIndex:" << gindex << std::endl;
if (!mcReconstructed[gindex]) {
int mult = getMCMult(mcParticles, gindex);
std::vector<float> mcptvec;
int mult = getMCMult(mcParticles, gindex, mcptvec);
// std::cout << "===> unreconstructed:" << mult << std::endl;
mRegistry.fill(HIST("hNTracksMCNotInReco"), mult);
for (auto const& pt : mcptvec) {
mRegistrydNdeta.fill(HIST("hdNdetaRM/hdNdetaRMNotInRecoCol"), mult, pt);
}
}
}
}
PROCESS_SWITCH(NonPromptCascadeTask, processNegMC, "process mc", false);
PROCESS_SWITCH(NonPromptCascadeTask, processdNdetaMC, "process mc dN/deta", false);
};

WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
Expand Down
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