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[PWGCF] FemtoUniverse: Adding pair-seperation for pair-cuts #12090

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Merged
prchakra merged 3 commits into from
Jul 16, 2025
Merged

[PWGCF] FemtoUniverse: Adding pair-seperation for pair-cuts #12090

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0513ca4
[PWGCF] FemtoUniverse: Adding pair-seperation for pair-cuts
prchakra Jul 16, 2025
5c56fd0
Fixing clang-errors, unused variables
prchakra Jul 16, 2025
9605075
Removing unused variables
prchakra Jul 16, 2025
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34 changes: 33 additions & 1 deletion PWGCF/FemtoUniverse/Core/FemtoUniverseDetaDphiStar.h
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Original file line number Diff line number Diff line change
Expand Up @@ -72,13 +72,13 @@
histdetadpiqlcmsmixed = mHistogramRegistry->add<TH3>((dirName + static_cast<std::string>(HistNamesMixed[1][7])).c_str(), "; #it{q}_{LCMS}; #Delta #eta; #Delta #phi", kTH3F, {{100, 0.0, 0.5}, {100, -0.15, 0.15}, {100, -0.15, 0.15}});

if (plotForEveryRadii) {
for (int i = 0; i < 9; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
histdetadpiRadii[0][i] = mHistogramRegistryQA->add<TH2>((dirName + static_cast<std::string>(HistNamesRadii[0][i])).c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
}
}
}
if constexpr (kPartOneType == o2::aod::femtouniverseparticle::ParticleType::kTrack && kPartTwoType == o2::aod::femtouniverseparticle::ParticleType::kV0) {
for (int i = 0; i < 2; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
std::string dirName = static_cast<std::string>(DirNames[1]);
histdetadpisame[i][0] = mHistogramRegistry->add<TH2>((dirName + static_cast<std::string>(HistNamesSame[0][i])).c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
histdetadpisame[i][1] = mHistogramRegistry->add<TH2>((dirName + static_cast<std::string>(HistNamesSame[1][i])).c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
Expand All @@ -86,7 +86,7 @@
histdetadpimixed[i][1] = mHistogramRegistry->add<TH2>((dirName + static_cast<std::string>(HistNamesMixed[1][i])).c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});

if (plotForEveryRadii) {
for (int j = 0; j < 9; j++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
histdetadpiRadii[i][j] = mHistogramRegistryQA->add<TH2>((dirName + static_cast<std::string>(HistNamesRadii[i][j])).c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
}
}
Expand All @@ -94,14 +94,14 @@
}
if constexpr (kPartOneType == o2::aod::femtouniverseparticle::ParticleType::kV0 && kPartTwoType == o2::aod::femtouniverseparticle::ParticleType::kV0) {
/// V0-V0 combination
for (int k = 0; k < 2; k++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
std::string dirName = static_cast<std::string>(DirNames[2]);
histdetadpisame[k][0] = mHistogramRegistry->add<TH2>((dirName + static_cast<std::string>(HistNamesSame[0][k])).c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
histdetadpisame[k][1] = mHistogramRegistry->add<TH2>((dirName + static_cast<std::string>(HistNamesSame[1][k])).c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
histdetadpimixed[k][0] = mHistogramRegistry->add<TH2>((dirName + static_cast<std::string>(HistNamesMixed[0][k])).c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
histdetadpimixed[k][1] = mHistogramRegistry->add<TH2>((dirName + static_cast<std::string>(HistNamesMixed[1][k])).c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
if (plotForEveryRadii) {
for (int l = 0; l < 9; l++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
histdetadpiRadii[k][l] = mHistogramRegistryQA->add<TH2>((dirName + static_cast<std::string>(HistNamesRadii[k][l])).c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
}
}
Expand All @@ -109,7 +109,7 @@
}
if constexpr (kPartOneType == o2::aod::femtouniverseparticle::ParticleType::kCascade && kPartTwoType == o2::aod::femtouniverseparticle::ParticleType::kCascade) {
/// Xi-Xi and Omega-Omega combination
for (int k = 0; k < 7; k++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
std::string dirName = static_cast<std::string>(DirNames[5]);
histdetadpisame[k][0] = mHistogramRegistry->add<TH2>((dirName + static_cast<std::string>(HistNamesSame[0][k])).c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
histdetadpisame[k][1] = mHistogramRegistry->add<TH2>((dirName + static_cast<std::string>(HistNamesSame[1][k])).c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
Expand Down Expand Up @@ -169,6 +169,7 @@
}
auto deta = part1.eta() - part2.eta();
auto dphiAvg = averagePhiStar(part1, part2, 0);
auto dphi = averagePhiStarFrac(part1, part2);
if (ChosenEventType == femto_universe_container::EventType::same) {
histdetadpisame[0][0]->Fill(deta, dphiAvg);
} else if (ChosenEventType == femto_universe_container::EventType::mixed) {
Expand All @@ -177,7 +178,8 @@
LOG(fatal) << "FemtoUniverseDetaDphiStar: passed arguments don't agree with FemtoUniverseDetaDphiStar's type of events! Please provide same or mixed.";
}

if (std::pow(dphiAvg, 2) / std::pow(cutDeltaPhiStarMax, 2) + std::pow(deta, 2) / std::pow(cutDeltaEtaMax, 2) < 1.) {
// if (std::pow(dphiAvg, 2) / std::pow(cutDeltaPhiStarMax, 2) + std::pow(deta, 2) / std::pow(cutDeltaEtaMax, 2) < 1.) {
if (dphi > 0.02) {
return true;
} else {
if (ChosenEventType == femto_universe_container::EventType::same) {
Expand Down Expand Up @@ -377,13 +379,13 @@
}

// REMOVING THE "RING" -- CALCULATING THE INVARIANT MASS
TLorentzVector part1Vec;

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[root/lorentz-vector] 

Do not use the TLorentzVector legacy class. Use std::array with RecoDecay methods or the ROOT::Math::LorentzVector template instead.
TLorentzVector part2Vec;

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[root/lorentz-vector] 

Do not use the TLorentzVector legacy class. Use std::array with RecoDecay methods or the ROOT::Math::LorentzVector template instead.
float mMassOne = o2::constants::physics::MassKPlus;
float mMassTwo = o2::constants::physics::MassKMinus;
part1Vec.SetPtEtaPhiM(part1.pt(), part1.eta(), part1.phi(), mMassOne);
part2Vec.SetPtEtaPhiM(daughter.pt(), daughter.eta(), daughter.phi(), mMassTwo);
TLorentzVector sumVec(part1Vec);

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[root/lorentz-vector] 

Do not use the TLorentzVector legacy class. Use std::array with RecoDecay methods or the ROOT::Math::LorentzVector template instead.
sumVec += part2Vec;
float phiM = sumVec.M();
if ((phiM > cutPhiInvMassLow) && (phiM < cutPhiInvMassHigh)) {
Expand Down Expand Up @@ -554,6 +556,36 @@
return dPhiAvg / static_cast<float>(entries);
}

/// Calculate average phi
template <typename T1, typename T2>
float averagePhiStarFrac(const T1& part1, const T2& part2)
{
std::vector<float> tmpVec1;
std::vector<float> tmpVec2;
phiAtRadiiTPC(part1, tmpVec1);
phiAtRadiiTPC(part2, tmpVec2);
int num = tmpVec1.size();
float dphi = 0;
int entries = 0;
double distance = 0;
int badpoints = 0;

for (int i = 0; i < num; i++) {
if (tmpVec1.at(i) != 999 && tmpVec2.at(i) != 999) {
dphi = tmpVec1.at(i) - tmpVec2.at(i);
entries++;
} else {
dphi = 0;
}
dphi = TVector2::Phi_mpi_pi(dphi);
distance = 2 * TMath::Sin(TMath::Abs(dphi) * 0.5) * TmpRadiiTPC[i];

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
if (distance < 10.0) {
badpoints++;
}
}
return badpoints / entries;
}

// Get particle charge from mask
template <typename T1>
float getCharge(const T1& part)
Expand Down
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