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[PWGLF] Add histogram to fill MC events with zero reco events #14030

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Merged
abmodak merged 7 commits into from
Nov 28, 2025
Merged

[PWGLF] Add histogram to fill MC events with zero reco events #14030

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0e68849
Fix bug in filling of histograms
abmodak Nov 27, 2025
31a23e3
Merge branch 'AliceO2Group:master' into master
abmodak Nov 28, 2025
2540c2c
Merge branch 'AliceO2Group:master' into update-heavyion
abmodak Nov 28, 2025
7714f35
Add histogram to fill MC events with zero reco events
abmodak Nov 28, 2025
00cc783
Please consider the following formatting changes
alibuild Nov 28, 2025
eb614f6
Merge pull request #13 from alibuild/alibot-cleanup-14030
abmodak Nov 28, 2025
31597cf
Fix o2 building error
abmodak Nov 28, 2025
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9 changes: 8 additions & 1 deletion PWGLF/Tasks/GlobalEventProperties/heavyionMultiplicity.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -311,7 +311,9 @@
auto hstat = histos.get<TH1>(HIST("MCEventHist"));
auto* x = hstat->GetXaxis();
x->SetBinLabel(1, "All MC events");
x->SetBinLabel(2, "MC events with atleast one reco event");
x->SetBinLabel(2, "MC events with reco event after event selection");
x->SetBinLabel(3, "MC events with no reco events");
histos.add("hImpactParameterGenwithNoreco", "Impact parameter of generated MC events, with no recoevent", kTH1F, {impactParAxis});
histos.add("hImpactParameterGen", "Impact parameter of generated MC events", kTH1F, {impactParAxis});
histos.add("hImpactParameterRec", "Impact parameter of selected MC events", kTH1F, {impactParAxis});
histos.add("hImpactParvsCentrRec", "Impact parameter of selected MC events vs centrality", kTH2F, {axisCent, impactParAxis});
Expand Down Expand Up @@ -878,10 +880,10 @@
if (std::abs(particle.eta()) < 1.0) {
multBarrelEta10++;
}
if (-3.3 < particle.eta() && particle.eta() < -2.1) {

Check failure on line 883 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 886 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 @@ -915,6 +917,11 @@
histos.fill(HIST("MCEventHist"), 1);
histos.fill(HIST("hImpactParameterGen"), mcCollision.impactParameter());

if (RecCols.size() == 0) {
histos.fill(HIST("MCEventHist"), 3);
histos.fill(HIST("hImpactParameterGenwithNoreco"), mcCollision.impactParameter());
}

bool atLeastOne = false;
auto centrality = -999.;
auto numcontributors = -999;
Expand Down
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