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[PWGLF] Add FT0C centrality vs FT0C mult correlation #15716

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Merged
abmodak merged 2 commits into from
Apr 10, 2026
+10 −2
Merged

[PWGLF] Add FT0C centrality vs FT0C mult correlation #15716

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885d829
Add FT0C centrality vs FT0C mult correlation
abmodak Apr 10, 2026
21a3485
Add configurable vertex selection
abmodak Apr 10, 2026
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12 changes: 10 additions & 2 deletions PWGLF/Tasks/GlobalEventProperties/heavyionMultiplicity.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -197,6 +197,7 @@
Configurable<bool> isApplyNoCollInRofStandard{"isApplyNoCollInRofStandard", false, "Enable NoCollInRofStandard cut"};
Configurable<bool> isApplyNoHighMultCollInPrevRof{"isApplyNoHighMultCollInPrevRof", false, "Enable NoHighMultCollInPrevRof cut"};
Configurable<bool> isApplyInelgt0{"isApplyInelgt0", false, "Enable INEL > 0 condition"};
Configurable<bool> isApplyVtxCut{"isApplyVtxCut", false, "Enable vertex cut condition"};
Configurable<bool> isApplyFT0CbasedOccupancy{"isApplyFT0CbasedOccupancy", false, "Enable FT0CbasedOccupancy cut"};
Configurable<bool> isApplyCentFT0C{"isApplyCentFT0C", true, "Centrality based on FT0C"};
Configurable<bool> isApplyCentFV0A{"isApplyCentFV0A", false, "Centrality based on FV0A"};
Expand All @@ -207,6 +208,7 @@
Configurable<bool> isApplyCentMFT{"isApplyCentMFT", false, "Centrality based on MFT tracks"};
Configurable<bool> isApplyTVX{"isApplyTVX", false, "Enable TVX trigger sel"};
Configurable<bool> isApplyExtraPhiCut{"isApplyExtraPhiCut", false, "Enable extra phi cut"};
Configurable<bool> isApplyBestCollIndex{"isApplyBestCollIndex", true, ""};

Configurable<bool> selectCollidingBCs{"selectCollidingBCs", true, "BC analysis: select colliding BCs"};
Configurable<bool> selectTVX{"selectTVX", true, "BC analysis: select TVX"};
Expand Down Expand Up @@ -357,6 +359,7 @@
histos.add("hRecMCvertexZ", "hRecMCvertexZ", kTH1D, {axisVtxZ}, false);
histos.add("hRecMCvtxzcent", "hRecMCvtxzcent", kTH3D, {axisVtxZ, centAxis, axisOccupancy}, false);
histos.add("hRecMCcentrality", "hRecMCcentrality", kTH1D, {axisCent}, false);
histos.add("MCCentrality_vs_FT0C", "MCCentrality_vs_FT0C", kTH2F, {axisCent, axisFt0cMult}, true);
histos.add("hRecMCphivseta", "hRecMCphivseta", kTH2D, {axisPhi2, axisEta}, false);
histos.add("hRecMCdndeta", "hRecMCdndeta", kTHnSparseD, {axisVtxZ, centAxis, axisOccupancy, axisEta, axisPhi, axisRecTrkType}, false);
histos.add("etaResolution", "etaResolution", kTH2D, {axisEta, axisDeltaEta});
Expand Down Expand Up @@ -415,6 +418,10 @@
return false;
}
histos.fill(HIST("EventHist"), 10);
if (isApplyVtxCut && std::abs(col.posZ()) >= vtxRange) {
return false;
}
histos.fill(HIST("EventHist"), 11);
return true;
}

Expand Down Expand Up @@ -751,10 +758,10 @@
if (std::abs(particle.eta()) < 1.0) {
multBarrelEta10++;
}
if (-3.3 < particle.eta() && particle.eta() < -2.1) {

Check failure on line 761 in PWGLF/Tasks/GlobalEventProperties/heavyionMultiplicity.cxx

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
multFT0C++;
}
if (3.5 < particle.eta() && particle.eta() < 4.9) {

Check failure on line 764 in PWGLF/Tasks/GlobalEventProperties/heavyionMultiplicity.cxx

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
multFT0A++;
}
}
Expand Down Expand Up @@ -875,7 +882,7 @@
if (!isEventSelected(RecCol)) {
continue;
}
if (RecCol.globalIndex() != mcCollision.bestCollisionIndex()) {
if (isApplyBestCollIndex && RecCol.globalIndex() != mcCollision.bestCollisionIndex()) {
continue;
}
atLeastOne = true;
Expand Down Expand Up @@ -928,11 +935,12 @@
if (!isEventSelected(RecCol)) {
continue;
}
if (RecCol.globalIndex() != mcCollision.bestCollisionIndex()) {
if (isApplyBestCollIndex && RecCol.globalIndex() != mcCollision.bestCollisionIndex()) {
continue;
}
histos.fill(HIST("hRecMCvertexZ"), RecCol.posZ());
histos.fill(HIST("hRecMCcentrality"), selColCent(RecCol));
histos.fill(HIST("MCCentrality_vs_FT0C"), RecCol.centFT0C(), RecCol.multFT0C());
histos.fill(HIST("hRecMCvtxzcent"), RecCol.posZ(), selColCent(RecCol), selColOccu(RecCol));

auto recTracksPart = RecTracks.sliceBy(perCollision, RecCol.globalIndex());
Expand Down
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