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[PWGLF] Nuclei: deuteron proton correlation add signal loss and z vtx cut #13268

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[PWGLF] Nuclei: deuteron proton correlation add signal loss and z vtx cut #13268

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611f4cd
add generated denominator and z vtx cut in gen collisins
ercolessi Oct 7, 2025
877e777
fix
ercolessi Oct 7, 2025
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18 changes: 18 additions & 0 deletions PWGLF/Tasks/Nuspex/hadronnucleicorrelation.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -55,8 +55,8 @@
struct hadronnucleicorrelation {

// PDG codes and masses used in this analysis
static constexpr int pdgProton = 2212;

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
static constexpr int pdgDeuteron = 1000010020;

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[pdg/explicit-code] 

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

Configurable<int> mode{"mode", 0, "0: antid-antip, 1: d-p, 2: antid-p, 3: d-antip, 4: antip-p, 5: antip-antip, 6: p-p"};

Expand Down Expand Up @@ -158,6 +158,9 @@
std::map<std::pair<int, float>, std::vector<colType>> mixbinsPID_antidantip;
std::map<float, std::vector<MCcolType>> mixbinsMC_antidantip;
std::map<float, std::vector<MCcolType>> mixbinsMC_dp;
std::map<float, std::vector<MCcolType>> mixbinsMC_antipantip;
std::map<float, std::vector<MCcolType>> mixbinsMC_pp;
std::map<float, std::vector<MCcolType>> mixbinsMC_antipp;

std::unique_ptr<o2::aod::singletrackselector::FemtoPair<trkType>> Pair = std::make_unique<o2::aod::singletrackselector::FemtoPair<trkType>>();
std::unique_ptr<o2::aod::singletrackselector::FemtoPair<trkTypeMC>> PairMC = std::make_unique<o2::aod::singletrackselector::FemtoPair<trkTypeMC>>();
Expand Down Expand Up @@ -376,6 +379,9 @@
registry.add("hReco_Pt_Proton", "Reco (anti)protons in reco collisions", {HistType::kTH1F, {pTAxis_small}});
registry.add("hReco_Pt_Deuteron", "Reco (anti)deuterons in reco collisions", {HistType::kTH1F, {pTAxis_small}});

registry.add("hGen_EtaPhiPt_Proton", "Gen (anti)protons in gen collisions", {HistType::kTH3F, {etaAxis, phiAxis, pTAxis_small}});
registry.add("hGen_EtaPhiPt_Deuteron", "Gen (anti)deuteron in gen collisions", {HistType::kTH3F, {etaAxis, phiAxis, pTAxis_small}});

registry.add("hSec_EtaPhiPt_Proton", "Secondary (anti)protons", {HistType::kTH3F, {etaAxis, phiAxis, pTAxis_small}});
registry.add("hPrimSec_EtaPhiPt_Proton", "Primary + Secondary (anti)protons", {HistType::kTH3F, {etaAxis, phiAxis, pTAxis_small}});

Expand Down Expand Up @@ -814,7 +820,7 @@

void processData(FilteredCollisions const& collisions, FilteredTracks const& tracks)
{
for (auto track : tracks) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
if (std::abs(track.template singleCollSel_as<FilteredCollisions>().posZ()) > cutzvertex)
continue;

Expand Down Expand Up @@ -915,7 +921,7 @@
}
}

for (auto collision : collisions) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.

if (std::abs(collision.posZ()) > cutzvertex)
continue;
Expand Down Expand Up @@ -1190,22 +1196,22 @@
(i->second).clear();
selectedtracks_d.clear();

for (auto& pair : mixbins_antid) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
pair.second.clear(); // Clear the vector associated with the key
}
mixbins_antid.clear(); // Then clear the map itself

for (auto& pair : mixbins_d) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
pair.second.clear(); // Clear the vector associated with the key
}
mixbins_d.clear(); // Then clear the map itself

for (auto& pair : mixbins_antip) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
pair.second.clear(); // Clear the vector associated with the key
}
mixbins_antip.clear(); // Then clear the map itself

for (auto& pair : mixbins_p) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
pair.second.clear(); // Clear the vector associated with the key
}
mixbins_p.clear(); // Then clear the map itself
Expand All @@ -1214,7 +1220,7 @@

void processMC(FilteredCollisions const& collisions, FilteredTracksMC const& tracks)
{
for (auto track : tracks) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
if (std::abs(track.template singleCollSel_as<FilteredCollisions>().posZ()) > cutzvertex)
continue;

Expand Down Expand Up @@ -1609,7 +1615,7 @@
return;
}

for (auto collision : collisions) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
if (std::abs(collision.posZ()) > cutzvertex)
continue;
registry.fill(HIST("hNEvents"), 0.5);
Expand Down Expand Up @@ -1739,8 +1745,12 @@
void processGen(SimCollisions const& mcCollisions,
SimParticles const& mcParticles)
{

for (auto particle : mcParticles) {

if (std::abs(particle.template mcCollision_as<aod::McCollisions>().posZ()) > cutzvertex)
continue;

if (particle.pdgCode() == pdgProton) {
registry.fill(HIST("Generated/hQAProtons"), 0.5);
}
Expand Down Expand Up @@ -1776,15 +1786,19 @@
}

if (particle.pdgCode() == pdgDeuteron) {
registry.fill(HIST("hGen_EtaPhiPt_Deuteron"), particle.eta(), particle.phi(), particle.pt());
selectedparticlesMC_d[particle.mcCollisionId()].push_back(std::make_shared<decltype(particle)>(particle));
}
if (particle.pdgCode() == -pdgDeuteron) {
registry.fill(HIST("hGen_EtaPhiPt_Deuteron"), particle.eta(), particle.phi(), -1. * particle.pt());
selectedparticlesMC_antid[particle.mcCollisionId()].push_back(std::make_shared<decltype(particle)>(particle));
}
if (particle.pdgCode() == pdgProton) {
registry.fill(HIST("hGen_EtaPhiPt_Proton"), particle.eta(), particle.phi(), particle.pt());
selectedparticlesMC_p[particle.mcCollisionId()].push_back(std::make_shared<decltype(particle)>(particle));
}
if (particle.pdgCode() == -pdgProton) {
registry.fill(HIST("hGen_EtaPhiPt_Proton"), particle.eta(), particle.phi(), -1. * particle.pt());
selectedparticlesMC_antip[particle.mcCollisionId()].push_back(std::make_shared<decltype(particle)>(particle));
}
}
Expand All @@ -1793,6 +1807,10 @@

registry.fill(HIST("Generated/hNEventsMC"), 0.5);

if (std::abs(collision1.posZ()) > cutzvertex) {
continue;
}

// anti-d - anti-p correlation
if (selectedparticlesMC_antid.find(collision1.globalIndex()) != selectedparticlesMC_antid.end()) {
if (selectedparticlesMC_antip.find(collision1.globalIndex()) != selectedparticlesMC_antip.end()) {
Expand Down
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