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[PWGCF] FemtoUniverse: Add deta-dphi* distributions in kT ranges #13584

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prchakra merged 1 commit into from
Oct 29, 2025
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[PWGCF] FemtoUniverse: Add deta-dphi* distributions in kT ranges #13584

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83 changes: 83 additions & 0 deletions PWGCF/FemtoUniverse/Core/FemtoUniverseDetaDphiStar.h
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Original file line number Diff line number Diff line change
Expand Up @@ -75,13 +75,13 @@
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 @@ -89,7 +89,7 @@
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 @@ -97,14 +97,14 @@
}
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 @@ -112,14 +112,14 @@
}
if constexpr (kPartOneType == o2::aod::femtouniverseparticle::ParticleType::kCascade && kPartTwoType == o2::aod::femtouniverseparticle::ParticleType::kCascade) {
/// Cascade-Cascade 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}});
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 Down Expand Up @@ -187,6 +187,27 @@
}
}

template <typename t1>
void init_kT(HistogramRegistry* registry, t1& ktbins)
{
mHistogramRegistry = registry;
ktBins = ktbins;

if constexpr (kPartOneType == o2::aod::femtouniverseparticle::ParticleType::kTrack && kPartTwoType == o2::aod::femtouniverseparticle::ParticleType::kTrack) {
std::string dirName = static_cast<std::string>(DirNames[0]);
for (int j = 0; j < static_cast<int>(ktBins.size() - 1); j++) {
std::string histSuffixkT1 = std::to_string(static_cast<int>(ktBins[j] * 100.0));
std::string histSuffixkT2 = std::to_string(static_cast<int>(ktBins[j + 1] * 100.0));
std::string histFolderkT = "kT_" + histSuffixkT1 + "_" + histSuffixkT2 + "/";

histdetadphisamebeforekT[j] = mHistogramRegistry->add<TH2>((dirName + histFolderkT + "detadphidetadphiBeforeSame").c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
histdetadphimixedbeforekT[j] = mHistogramRegistry->add<TH2>((dirName + histFolderkT + "detadphidetadphiBeforeMixed").c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
histdetadphisameafterkT[j] = mHistogramRegistry->add<TH2>((dirName + histFolderkT + "detadphidetadphiAfterSame").c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
histdetadphimixedafterkT[j] = mHistogramRegistry->add<TH2>((dirName + histFolderkT + "detadphidetadphiAfterMixed").c_str(), "; #Delta #eta; #Delta #phi", kTH2F, {{100, -0.15, 0.15}, {100, -0.15, 0.15}});
}
}
}

/// Check if pair is close or not
template <typename Part, typename Parts>
bool isClosePair(Part const& part1, Part const& part2, Parts const& particles, float lmagfield, uint8_t ChosenEventType)
Expand Down Expand Up @@ -486,13 +507,13 @@
}

// 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 @@ -620,6 +641,62 @@
}
}

/// Templated function to access different kT directory and call addEventPair
/// \param part1 particle 1
/// \param part2 particle 2
/// \param ChosenEventType Same or Mixed evet type
/// \param maxl Maximum valie of L component of the spherical harmonics
/// \param multval Multiplicity value
/// \param ktval kT value
template <typename Part>
void kTdetadphi(Part const& part1, Part const& part2, uint8_t ChosenEventType, float ktval)
{
int ktbinval = -1;
if (ktval >= ktBins[0] && ktval < ktBins[1]) {
ktbinval = 0;
} else if (ktval >= ktBins[1] && ktval < ktBins[2]) {
ktbinval = 1;
} else if (ktval >= ktBins[2] && ktval < ktBins[3]) {
ktbinval = 2;
} else if (ktval >= ktBins[3] && ktval < ktBins[4]) {
ktbinval = 3;
} else {
return;
}
isClosePairkT(part1, part2, ChosenEventType, ktbinval);
}

/// Check if pair is close or not
template <typename Part>
void isClosePairkT(Part const& part1, Part const& part2, uint8_t ChosenEventType, int ktbinval)
{
/// Track-Track combination
// check if provided particles are in agreement with the class instantiation
if (part1.partType() != o2::aod::femtouniverseparticle::ParticleType::kTrack || part2.partType() != o2::aod::femtouniverseparticle::ParticleType::kTrack) {
LOG(fatal) << "FemtoUniverseDetaDphiStar: passed arguments don't agree with FemtoUniverseDetaDphiStar instantiation! Please provide kTrack,kTrack candidates.";
return;
}
auto deta = part1.eta() - part2.eta();
auto dphiAvg = averagePhiStar(part1, part2, 0);
if (ChosenEventType == femto_universe_container::EventType::same) {
histdetadphisamebeforekT[ktbinval]->Fill(deta, dphiAvg);
} else if (ChosenEventType == femto_universe_container::EventType::mixed) {
histdetadphimixedbeforekT[ktbinval]->Fill(deta, dphiAvg);
} else {
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 (ChosenEventType == femto_universe_container::EventType::same) {
histdetadphisameafterkT[ktbinval]->Fill(deta, dphiAvg);
} else if (ChosenEventType == femto_universe_container::EventType::mixed) {
histdetadphimixedafterkT[ktbinval]->Fill(deta, dphiAvg);
} else {
LOG(fatal) << "FemtoUniverseDetaDphiStar: passed arguments don't agree with FemtoUniverseDetaDphiStar's type of events! Please provide same or mixed.";
}
}
}

/// Check if pair is close or not
template <typename Part>
void ClosePairqLCMS(Part const& part1, Part const& part2, float lmagfield, uint8_t ChosenEventType, double qlcms) // add typename Parts and variable parts for adding MClabels
Expand Down Expand Up @@ -698,9 +775,15 @@
float cutPhiInvMassLow;
float cutPhiInvMassHigh;
bool isSameSignCPR = false;
std::vector<double> ktBins;

std::array<std::array<std::shared_ptr<TH2>, 2>, 7> histdetadpisame{};
std::array<std::array<std::shared_ptr<TH2>, 2>, 7> histdetadpimixed{};
std::array<std::shared_ptr<TH2>, 4> histdetadphisamebeforekT{};
std::array<std::shared_ptr<TH2>, 4> histdetadphimixedbeforekT{};
std::array<std::shared_ptr<TH2>, 4> histdetadphisameafterkT{};
std::array<std::shared_ptr<TH2>, 4> histdetadphimixedafterkT{};

std::array<std::array<std::shared_ptr<TH2>, 9>, 7> histdetadpiRadii{};

std::shared_ptr<TH3> histdetadpiqlcmssame{};
Expand Down
7 changes: 5 additions & 2 deletions PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackTrackSpherHarMultKtExtended.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -454,6 +454,7 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended {
pairCleaner.init(&qaRegistry);
if (twotracksconfigs.ConfIsCPR.value) {
pairCloseRejection.init(&resultRegistry, &qaRegistry, twotracksconfigs.ConfCPRdeltaPhiCutMin.value, twotracksconfigs.ConfCPRdeltaPhiCutMax.value, twotracksconfigs.ConfCPRdeltaEtaCutMin.value, twotracksconfigs.ConfCPRdeltaEtaCutMax.value, twotracksconfigs.ConfCPRChosenRadii.value, twotracksconfigs.ConfCPRPlotPerRadii.value);
pairCloseRejection.init_kT(&resultRegistry, ConfKtKstarBins);
}

vPIDPartOne = trackonefilter.ConfPIDPartOne.value;
Expand Down Expand Up @@ -549,7 +550,9 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended {
continue;
}

float kT = FemtoUniverseMath::getkT(p1, mass1, p2, mass2);
if (twotracksconfigs.ConfIsCPR.value) {
pairCloseRejection.kTdetadphi(p1, p2, femto_universe_container::EventType::same, kT);
if (confCPRIsAtITS.value) {
if (pairCloseRejection.isClosePairAtITS(p1, p2, magFieldTesla, femto_universe_container::EventType::same)) {
continue;
Expand All @@ -566,7 +569,6 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended {
continue;
}

float kT = FemtoUniverseMath::getkT(p1, mass1, p2, mass2);
double rand;
rand = randgen->Rndm();

Expand Down Expand Up @@ -919,7 +921,9 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended {
continue;
}

float kT = FemtoUniverseMath::getkT(p1, mass1, p2, mass2);
if (twotracksconfigs.ConfIsCPR.value) {
pairCloseRejection.kTdetadphi(p1, p2, femto_universe_container::EventType::mixed, kT);
if (confCPRIsAtITS.value) {
if (pairCloseRejection.isClosePairAtITS(p1, p2, magFieldTesla, femto_universe_container::EventType::mixed)) {
continue;
Expand All @@ -931,7 +935,6 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended {
}
}

float kT = FemtoUniverseMath::getkT(p1, mass1, p2, mass2);
double rand;
rand = randgen->Rndm();

Expand Down
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