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[PWGHF] Add possibility to reject particles from background event #13583

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Merged
fgrosa merged 3 commits into from
Oct 29, 2025
Merged

[PWGHF] Add possibility to reject particles from background event #13583

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e8094e7
Add possibility to reject particles from background event
fgrosa Oct 28, 2025
bd10d39
Respect conventions
fgrosa Oct 28, 2025
b64080d
Make Megalinter happy
fgrosa Oct 28, 2025
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7 changes: 6 additions & 1 deletion PWGHF/Tasks/taskMcGenPtRapShapes.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -52,6 +52,8 @@ constexpr std::array<int, nBeautyHadrons> PdgCodesBeauty = {Pdg::kB0, Pdg::kBPlu

struct HfTaskMcGenPtRapShapes {

Configurable<bool> rejectBackground{"rejectBackground", false, "Reject particles from background events"};
Configurable<float> absRapidityMax{"absRapidityMax", 0.5, "Absolute maximum rapidity"};
ConfigurableAxis axisPtCharm{"axisPtCharm", {1000, 0.f, 100.f}, "Binning for the pT axis of charm hadrons"};
ConfigurableAxis axisPtBeauty{"axisPtBeauty", {3000, 0.f, 300.f}, "Binning for the pT axis of beauty hadrons"};
ConfigurableAxis axisRapCharm{"axisRapCharm", {100, -1.f, 1.f}, "Binning for the y axis of charm hadrons"};
Expand Down Expand Up @@ -81,6 +83,9 @@ struct HfTaskMcGenPtRapShapes {
void process(aod::McParticles const& mcParticles)
{
for (auto const& mcParticle : mcParticles) {
if (rejectBackground && mcParticle.fromBackgroundEvent()) {
continue;
}
int const absPdgCode = std::abs(mcParticle.pdgCode());
float const pt = mcParticle.pt();
float const rap = mcParticle.y();
Expand All @@ -94,7 +99,7 @@ struct HfTaskMcGenPtRapShapes {
histRapVsPtCharmPrompt[idxCharm]->Fill(pt, rap);
} else if (origin == RecoDecay::OriginType::NonPrompt) {
histRapVsPtCharmNonPrompt[idxCharm]->Fill(pt, rap);
if (std::abs(rap) < 0.5) {
if (std::abs(rap) < absRapidityMax) {
auto bMother = mcParticles.rawIteratorAt(idxBhadMothers[0]);
histPtCharmVsPtBeautyNonPrompt[idxCharm]->Fill(bMother.pt(), pt);
}
Expand Down
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