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[PWGJE] V0 Jet Framework update #13063

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Merged
nzardosh merged 2 commits into from
Sep 27, 2025
Merged

[PWGJE] V0 Jet Framework update #13063

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73ea449
[PWGJE] V0 Jet Framework update
GijsvWeelden Sep 16, 2025
83c8796
Implemented comments Nima
GijsvWeelden Sep 26, 2025
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8 changes: 6 additions & 2 deletions PWGJE/Core/JetV0Utilities.h
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
// Copyright 2019-2020 CERN and copyright holders of ALICE O2.

Check failure on line 1 in PWGJE/Core/JetV0Utilities.h

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[name/file-cpp] 

Use lowerCamelCase or UpperCamelCase for names of C++ files. See the O2 naming conventions for details.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
Expand Down Expand Up @@ -138,9 +138,13 @@
}

template <typename T, typename U>
bool isV0Particle(T const& particles, U const& particle)
bool isV0Particle(T const& particles, U const& particle, bool v0ChargedDecaysOnly)
{
return RecoDecay::isMatchedMCGen(particles, particle, +kK0Short, std::array{+kPiPlus, -kPiPlus}, true) || RecoDecay::isMatchedMCGen(particles, particle, +kLambda0, std::array{+kProton, -kPiPlus}, true) || RecoDecay::isMatchedMCGen(particles, particle, -kLambda0, std::array{-kProton, +kPiPlus}, true);
if (v0ChargedDecaysOnly) {
return RecoDecay::isMatchedMCGen(particles, particle, +kK0Short, std::array{+kPiPlus, -kPiPlus}, true) || RecoDecay::isMatchedMCGen(particles, particle, +kLambda0, std::array{+kProton, -kPiPlus}, true) || RecoDecay::isMatchedMCGen(particles, particle, -kLambda0, std::array{-kProton, +kPiPlus}, true);
} else {
return RecoDecay::isMatchedMCGen(particles, particle, +kK0Short, std::array{+kPiPlus, -kPiPlus}, true) || RecoDecay::isMatchedMCGen(particles, particle, +kK0Short, std::array{+kPi0, +kPi0}, true) || RecoDecay::isMatchedMCGen(particles, particle, +kLambda0, std::array{+kProton, -kPiPlus}, true) || RecoDecay::isMatchedMCGen(particles, particle, +kLambda0, std::array{+kNeutron, +kPi0}, true) || RecoDecay::isMatchedMCGen(particles, particle, -kLambda0, std::array{-kProton, +kPiPlus}, true) || RecoDecay::isMatchedMCGen(particles, particle, -kLambda0, std::array{+kNeutron, +kPi0}, true);
}
}

enum JV0ParticleDecays {
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13 changes: 9 additions & 4 deletions PWGJE/JetFinders/jetFinderV0.cxx
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Expand Up @@ -8,7 +8,7 @@
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.

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[doc/file] 

Documentation for \author is missing, incorrect or misplaced.

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[doc/file] 

Documentation for \brief is missing, incorrect or misplaced.

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[doc/file] 

Documentation for \file is missing, incorrect or misplaced.
// jet finder V0 task
//
/// \author Nima Zardoshti <nima.zardoshti@cern.ch>
Expand Down Expand Up @@ -93,6 +93,7 @@
Configurable<bool> fillTHnSparse{"fillTHnSparse", true, "switch to fill the THnSparse"};
Configurable<double> jetExtraParam{"jetExtraParam", -99.0, "sets the _extra_param in fastjet"};
Configurable<bool> useV0SignalFlags{"useV0SignalFlags", true, "use V0 signal flags table"};
Configurable<bool> saveJetsWithCandidatesOnly{"saveJetsWithCandidatesOnly", true, "only save jets if they contain a V0"};

Service<o2::framework::O2DatabasePDG> pdgDatabase;
int trackSelection = -1;
Expand All @@ -119,7 +120,7 @@
jetFinder.jetPtMax = jetPtMax;
jetFinder.jetEtaMin = jetEtaMin;
jetFinder.jetEtaMax = jetEtaMax;
if (jetEtaMin < -98.0) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
jetFinder.jetEtaDefault = true;
}
jetFinder.algorithm = static_cast<fastjet::JetAlgorithm>(static_cast<int>(jetAlgorithm));
Expand All @@ -131,16 +132,16 @@
}
jetFinder.fastjetExtraParam = jetExtraParam;

if (candPDG == 310) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
candIndex = 0;
}
if (candPDG == 3122) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
candIndex = 1;
}

auto jetRadiiBins = (std::vector<double>)jetRadius;
if (jetRadiiBins.size() > 1) {
jetRadiiBins.push_back(jetRadiiBins[jetRadiiBins.size() - 1] + (TMath::Abs(jetRadiiBins[jetRadiiBins.size() - 1] - jetRadiiBins[jetRadiiBins.size() - 2])));

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
} else {
jetRadiiBins.push_back(jetRadiiBins[jetRadiiBins.size() - 1] + 0.1);
}
Expand Down Expand Up @@ -171,7 +172,9 @@
}
inputParticles.clear();
if (!jetfindingutilities::analyseV0s(inputParticles, candidates, candPtMin, candPtMax, candYMin, candYMax, candIndex, useV0SignalFlags)) {
return;
if (saveJetsWithCandidatesOnly) {
return;
}
}

/*
Expand All @@ -183,7 +186,7 @@
*/
jetfindingutilities::analyseTracksMultipleCandidates(inputParticles, tracks, trackSelection, trackingEfficiency, candidates);

jetfindingutilities::findJets(jetFinder, inputParticles, minJetPt, maxJetPt, jetRadius, jetAreaFractionMin, collision, jetsTableInput, constituentsTableInput, registry.get<THn>(HIST("hJet")), fillTHnSparse, true);
jetfindingutilities::findJets(jetFinder, inputParticles, minJetPt, maxJetPt, jetRadius, jetAreaFractionMin, collision, jetsTableInput, constituentsTableInput, registry.get<THn>(HIST("hJet")), fillTHnSparse, saveJetsWithCandidatesOnly);
}

template <typename T, typename U, typename V>
Expand All @@ -192,10 +195,12 @@

inputParticles.clear();
if (!jetfindingutilities::analyseV0s(inputParticles, candidates, candPtMin, candPtMax, candYMin, candYMax, candIndex, useV0SignalFlags)) {
return;
if (saveJetsWithCandidatesOnly) {
return;
}
}
jetfindingutilities::analyseParticles<true>(inputParticles, particleSelection, jetTypeParticleLevel, particles, pdgDatabase, &candidates);
jetfindingutilities::findJets(jetFinder, inputParticles, minJetPt, maxJetPt, jetRadius, jetAreaFractionMin, collision, jetsTable, constituentsTable, registry.get<THn>(HIST("hJetMCP")), fillTHnSparse, true);
jetfindingutilities::findJets(jetFinder, inputParticles, minJetPt, maxJetPt, jetRadius, jetAreaFractionMin, collision, jetsTable, constituentsTable, registry.get<THn>(HIST("hJetMCP")), fillTHnSparse, saveJetsWithCandidatesOnly);
}

void processDummy(aod::JetCollisions const&)
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3 changes: 2 additions & 1 deletion PWGJE/TableProducer/derivedDataProducer.cxx
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Expand Up @@ -147,6 +147,7 @@ struct JetDerivedDataProducerTask {
Configurable<std::string> ccdbURL{"ccdb-url", "http://alice-ccdb.cern.ch", "url of the ccdb repository"};
Configurable<bool> includeTriggers{"includeTriggers", false, "fill the collision information with software trigger decisions"};
Configurable<bool> includeHadronicRate{"includeHadronicRate", true, "fill the collision information with the hadronic rate"};
Configurable<bool> v0ChargedDecaysOnly{"v0ChargedDecaysOnly", true, "store V0s (at particle-level) only if they decay to charged particles"};

Preslice<aod::EMCALClusterCells> perClusterCells = aod::emcalclustercell::emcalclusterId;
Preslice<aod::EMCALMatchedTracks> perClusterTracks = aod::emcalclustercell::emcalclusterId;
Expand Down Expand Up @@ -764,7 +765,7 @@ struct JetDerivedDataProducerTask {
{ // can loop over McV0Labels tables if we want to only store matched V0Particles
bool filledV0McCollisionTable = false;
for (auto const& particle : particles) {
if (jetv0utilities::isV0Particle(particles, particle)) {
if (jetv0utilities::isV0Particle(particles, particle, v0ChargedDecaysOnly)) {
if (!filledV0McCollisionTable) {
products.jV0McCollisionsTable(mcCollision.posX(), mcCollision.posY(), mcCollision.posZ());
products.jV0McCollisionIdsTable(mcCollision.globalIndex());
Expand Down
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