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[ALICE3] Enhance track processing with histogram updates #14572

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Merged
njacazio merged 1 commit into from
Jan 21, 2026
Merged

[ALICE3] Enhance track processing with histogram updates #14572

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52 changes: 39 additions & 13 deletions ALICE3/TableProducer/alice3-decaypreselector.cxx
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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 ALICE3/TableProducer/alice3-decaypreselector.cxx

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[name/workflow-file] 

Name of a workflow file must match the name of the main struct in it (without the PWG prefix). (Class implementation files should be in "Core" directories.)
// 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 @@ -74,9 +74,6 @@
Configurable<float> nSigmaTOF{"nSigmaTOF", 4.0f, "Nsigma for TOF PID (if enabled)"};
Configurable<float> nSigmaRICH{"nSigmaRICH", 4.0f, "Nsigma for RICH PID (if enabled)"};

// Define o2 fitter, 2-prong, active memory (no need to redefine per event)
o2::vertexing::DCAFitterN<2> fitter;

// for bit-packed maps
std::vector<uint32_t> selectionMap;

Expand All @@ -92,7 +89,7 @@
if (track.has_mcParticle()) {
auto mcParticle = track.template mcParticle_as<aod::McParticles>();
if (mcParticle.has_mothers()) {
for (auto& mcParticleMother : mcParticle.template mothers_as<aod::McParticles>()) {

Check failure on line 92 in ALICE3/TableProducer/alice3-decaypreselector.cxx

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
if (mcParticle.pdgCode() == pdg && mcParticleMother.pdgCode() == pdgMother)
returnValue = true;
}
Expand All @@ -104,7 +101,17 @@

void init(InitContext&)
{
// future dev if needed
auto h = histos.add<TH1>("TracksProcessed", "TracksProcessed", o2::framework::HistType::kTH1D, {{10, 0, 10}});
h->GetXaxis()->SetBinLabel(1, "TotalTracks");
h->GetXaxis()->SetBinLabel(2, "InnerTOFPiRejected");
h->GetXaxis()->SetBinLabel(3, "InnerTOFKaRejected");
h->GetXaxis()->SetBinLabel(4, "InnerTOFPrRejected");
h->GetXaxis()->SetBinLabel(5, "OuterTOFPiRejected ");
h->GetXaxis()->SetBinLabel(6, "OuterTOFKaRejected");
h->GetXaxis()->SetBinLabel(7, "OuterTOFPrRejected");
h->GetXaxis()->SetBinLabel(8, "RICHPiRejected");
h->GetXaxis()->SetBinLabel(9, "RICHKaRejected");
h->GetXaxis()->SetBinLabel(10, "RICHPrRejected");
}

// go declarative: use partitions instead of "if", then just toggle bits to allow for mask selection later
Expand All @@ -129,37 +136,56 @@
/// This process function ensures that all V0s are built. It will simply tag everything as true.
void processInitialize(aod::Tracks const& tracks)
{
histos.fill(HIST("TracksProcessed"), 0.5, tracks.size());
initializeMasks(tracks.size());
}
//*+-+*+-+*+-+*+-+*+-+*+-+*+-+*+-+*+-+*+-+*
void processFilterInnerTOF(tofTracks const&)
{
for (auto const& track : pInnerTOFPi)
for (auto const& track : pInnerTOFPi) {
bitoff(selectionMap[track.globalIndex()], kInnerTOFPion);
for (auto const& track : pInnerTOFKa)
histos.fill(HIST("TracksProcessed"), 1.5);
}
for (auto const& track : pInnerTOFKa) {
bitoff(selectionMap[track.globalIndex()], kInnerTOFKaon);
for (auto const& track : pInnerTOFPr)
histos.fill(HIST("TracksProcessed"), 2.5);
}
for (auto const& track : pInnerTOFPr) {
bitoff(selectionMap[track.globalIndex()], kInnerTOFProton);
histos.fill(HIST("TracksProcessed"), 3.5);
}
}
//*+-+*+-+*+-+*+-+*+-+*+-+*+-+*+-+*+-+*+-+*
void processFilterOuterTOF(tofTracks const&)
{
for (auto const& track : pOuterTOFPi)
for (auto const& track : pOuterTOFPi) {
bitoff(selectionMap[track.globalIndex()], kOuterTOFPion);
for (auto const& track : pOuterTOFKa)
histos.fill(HIST("TracksProcessed"), 4.5);
}
for (auto const& track : pOuterTOFKa) {
bitoff(selectionMap[track.globalIndex()], kOuterTOFKaon);
for (auto const& track : pOuterTOFPr)
histos.fill(HIST("TracksProcessed"), 5.5);
}
for (auto const& track : pOuterTOFPr) {
bitoff(selectionMap[track.globalIndex()], kOuterTOFProton);
histos.fill(HIST("TracksProcessed"), 6.5);
}
}
//*+-+*+-+*+-+*+-+*+-+*+-+*+-+*+-+*+-+*+-+*
void processFilterRICH(richTracks const&)
{
for (auto const& track : pRICHPi)
for (auto const& track : pRICHPi) {
bitoff(selectionMap[track.globalIndex()], kRICHPion);
for (auto const& track : pRICHKa)
histos.fill(HIST("TracksProcessed"), 7.5);
}
for (auto const& track : pRICHKa) {
bitoff(selectionMap[track.globalIndex()], kRICHKaon);
for (auto const& track : pRICHPr)
histos.fill(HIST("TracksProcessed"), 8.5);
}
for (auto const& track : pRICHPr) {
bitoff(selectionMap[track.globalIndex()], kRICHProton);
histos.fill(HIST("TracksProcessed"), 9.5);
}
}
//*+-+*+-+*+-+*+-+*+-+*+-+*+-+*+-+*+-+*+-+*
void processFilterOnMonteCarloTruth(labeledTracks const& tracks, aod::McParticles const&)
Expand Down
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