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[PWGUD] Fix event selection cuts #18478

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Merged
ekryshen merged 5 commits into from
Oct 27, 2026
Merged

[PWGUD] Fix event selection cuts #18478

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53c24e8
Fixing VertexZ and Occupancy selection cut
m-rasa Oct 22, 2026
0756d9d
Fixing declaration of data type
m-rasa Oct 22, 2026
f57a814
Add proper event selection cuts
m-rasa Oct 27, 2026
f948dfa
Merge branch 'master' of github.com:m-rasa/O2Physics
m-rasa Oct 27, 2026
1a6b995
Cancel repeated line (redefinition)
m-rasa Oct 27, 2026
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34 changes: 34 additions & 0 deletions PWGUD/Tasks/sgDeuteronSpectra.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,8 @@ struct SgDeuteronSpectra {
Configurable<float> nsigmatpcPreselCut{"nsigmatpcPreselCut", 3.0, "nsigma TPC preselection cut for TOF analysis"};
Configurable<float> occupancyCut{"occupancyCut", 1000, "Occupancy cut"};
Configurable<float> vertexZCut{"vertexZCut", 10, "VertexZ cut"};
Configurable<float> maxTracks{"maxTracks", 100, "Maximum number of tracks in the event"};
Configurable<bool> useVtxFT0Cut{"useVtxFT0Cut", true, "Use zVtxFT0vPV cut in event selection"};

// Configurable axis for histograms
ConfigurableAxis ptAxis{"ptAxis", {200, 0.0, 10.0}, "p_{T}"};
Expand All @@ -70,6 +72,7 @@ struct SgDeuteronSpectra {
const AxisSpec axistof{nSigmaAxis, "n#sigma_{TOF}"};

// Collision histograms
registry.add("collisions/selectionCuts", "", {HistType::kTH1F, {{8, -0.5, 7.5}}});
registry.add("collisions/VertexZ", "", {HistType::kTH1F, {{800, -20, 20}}});
registry.add("collisions/GapSide", "Gap Side: A, C, A+C", {HistType::kTH1F, {{3, -0.5, 2.5}}});
registry.add("collisions/TrueGapSide", "Gap Side: A, C, A+C", {HistType::kTH1F, {{4, -1.5, 2.5}}});
Expand Down Expand Up @@ -101,13 +104,44 @@ struct SgDeuteronSpectra {
void process(UDCollisionFull const& coll, UDTracksFull const& tracks)
{
registry.fill(HIST("collisions/VertexZ"), coll.posZ());
registry.fill(HIST("collisions/selectionCuts"), 0);
// applying event cuts
if (!coll.tfb()) {
return;
}
registry.fill(HIST("collisions/selectionCuts"), 1);
if (!coll.itsROFb()) {
return;
}
registry.fill(HIST("collisions/selectionCuts"), 2);
if (!coll.sbp()) {
return;
}
registry.fill(HIST("collisions/selectionCuts"), 3);
if (useVtxFT0Cut) {
if (!coll.zVtxFT0vPV()) {
return;
}
registry.fill(HIST("collisions/selectionCuts"), 4);
} else {
registry.fill(HIST("collisions/selectionCuts"), 4);
}
if (!coll.vtxITSTPC()) {
return;
}
registry.fill(HIST("collisions/selectionCuts"), 5);
if (std::abs(coll.posZ()) > vertexZCut) {
return;
}
registry.fill(HIST("collisions/selectionCuts"), 6);
if (coll.occupancyInTime() > occupancyCut) {
return;
}
registry.fill(HIST("collisions/selectionCuts"), 7);
if (tracks.size() > maxTracks) {
return;
}
registry.fill(HIST("collisions/selectionCuts"), 8);
// fill gapside
registry.fill(HIST("collisions/GapSide"), coll.gapSide(), 1.);
std::vector<float> fitCut = {fv0Cut, ft0aCut, ft0cCut, fddaCut, fddcCut};
Expand Down
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