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[PWGLF] fix bug in filling inv mass histograms #11812

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Merged
romainschotter merged 1 commit into from
Jun 27, 2025
Merged

[PWGLF] fix bug in filling inv mass histograms #11812

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9 changes: 4 additions & 5 deletions PWGLF/Tasks/Strangeness/cascadecorrelations.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -292,7 +292,7 @@
if (!gen.isPhysicalPrimary())
return;
int genpdg = gen.pdgCode();
if ((flag < 3 && TMath::Abs(genpdg) == 3312) || (flag > 1 && TMath::Abs(genpdg) == 3334)) {

Check failure on line 295 in PWGLF/Tasks/Strangeness/cascadecorrelations.cxx

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
// if casc is consistent with Xi and has matched gen Xi OR cand is consistent with Omega and has matched gen omega
// have to do this in case we reco true Xi with only Omega hypothesis (or vice versa) (very unlikely)
registry.fill(HIST("truerec/hV0Radius"), rec.v0radius());
Expand Down Expand Up @@ -403,18 +403,18 @@
casc.v0cosPA(pvx, pvy, pvz) < v0setting_cospa ||
casc.casccosPA(pvx, pvy, pvz) < cascadesetting_cospa ||
casc.dcav0topv(pvx, pvy, pvz) < cascadesetting_mindcav0topv ||
TMath::Abs(casc.mLambda() - 1.115683) > cascadesetting_v0masswindow)

Check failure on line 406 in PWGLF/Tasks/Strangeness/cascadecorrelations.cxx

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
return 0; // It failed at least one topo selection

registry.fill(HIST("hSelectionStatus"), 4); // passes topo
// registry.fill(HIST("hMassXi3"), casc.mXi(), casc.pt());

if (TMath::Abs(posTrack.eta()) > etaTracks || TMath::Abs(negTrack.eta()) > etaTracks || TMath::Abs(bachTrack.eta()) > etaTracks)

Check failure on line 412 in PWGLF/Tasks/Strangeness/cascadecorrelations.cxx

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
return 0;

registry.fill(HIST("hSelectionStatus"), 5); // passes track eta

if (TMath::Abs(casc.eta()) > etaCascades)

Check failure on line 417 in PWGLF/Tasks/Strangeness/cascadecorrelations.cxx

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
return 0;

registry.fill(HIST("hSelectionStatus"), 6); // passes candidate eta
Expand All @@ -425,25 +425,25 @@
// Lambda check
if (casc.sign() < 0) {
// Proton check:
if (TMath::Abs(posTrack.tpcNSigmaPr()) > tpcNsigmaProton)

Check failure on line 428 in PWGLF/Tasks/Strangeness/cascadecorrelations.cxx

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
return 0;
// Pion check:
if (TMath::Abs(negTrack.tpcNSigmaPi()) > tpcNsigmaPion)

Check failure on line 431 in PWGLF/Tasks/Strangeness/cascadecorrelations.cxx

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
return 0;
} else {
// Proton check:
if (TMath::Abs(negTrack.tpcNSigmaPr()) > tpcNsigmaProton)

Check failure on line 435 in PWGLF/Tasks/Strangeness/cascadecorrelations.cxx

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
return 0;
// Pion check:
if (TMath::Abs(posTrack.tpcNSigmaPi()) > tpcNsigmaPion)

Check failure on line 438 in PWGLF/Tasks/Strangeness/cascadecorrelations.cxx

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
return 0;
}
registry.fill(HIST("hSelectionStatus"), 7); // passes V0 daughters PID
// registry.fill(HIST("hMassXi4"), casc.mXi(), casc.pt());

// Bachelor check
if (TMath::Abs(bachTrack.tpcNSigmaPi()) < tpcNsigmaBachelor) {

Check failure on line 445 in PWGLF/Tasks/Strangeness/cascadecorrelations.cxx

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
if (TMath::Abs(bachTrack.tpcNSigmaKa()) < tpcNsigmaBachelor) {

Check failure on line 446 in PWGLF/Tasks/Strangeness/cascadecorrelations.cxx

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
// consistent with both!
registry.fill(HIST("hSelectionStatus"), 8); // passes bach PID
// registry.fill(HIST("hMassXi5"), casc.mXi(), casc.pt());
Expand Down Expand Up @@ -574,8 +574,8 @@
ConfigurableAxis multiplicityAxis{"multiplicityAxis", {100, 0, 100}, "Multiplicity (MultFT0M?)"};
ConfigurableAxis invLambdaMassAxis{"invLambdaMassAxis", {100, 1.07f, 1.17f}, "Inv. Mass (GeV/c^{2})"};
AxisSpec signAxis{3, -1.5, 1.5, "sign of cascade"};
AxisSpec deltaYAxis{40, -2 * maxRapidity, 2 * maxRapidity, "#Delta y"};
AxisSpec rapidityAxis{100, -maxRapidity, maxRapidity, "y"};
AxisSpec deltaYAxis{40, -2.f, 2.f, "#Delta y"};
AxisSpec rapidityAxis{100, -1.f, 1.f, "y"};
AxisSpec selectionFlagAxis{4, -0.5f, 3.5f, "Selection flag of casc candidate"};
AxisSpec itsClustersAxis{8, -0.5, 7.5, "number of ITS clusters"};
AxisSpec tpcRowsAxis{160, -0.5, 159.5, "TPC crossed rows"};
Expand Down Expand Up @@ -751,7 +751,7 @@
weight = getEfficiency(hEffXiPlus, casc.pt());
}
// LOGF(info, "casc pt %f, weight %f", casc.pt(), weight);
registry.fill(HIST("hMassXiEffCorrected"), casc.mXi(), casc.pt(), casc.yXi(), collision.posZ(), collision.multFT0M(), weight);
registry.fill(HIST("hMassXiEffCorrected"), casc.mXi(), casc.sign(), casc.pt(), casc.yXi(), collision.posZ(), collision.multFT0M(), weight);
registry.fill(HIST("hRapidityXi"), casc.yXi());
}
if (casc.isSelected() >= 2) { // consistent with Omega or both
Expand All @@ -762,7 +762,7 @@
registry.fill(HIST("hMassOmegaPlus"), casc.mOmega(), casc.pt());
weight = getEfficiency(hEffOmegaPlus, casc.pt());
}
registry.fill(HIST("hMassOmegaEffCorrected"), casc.mOmega(), casc.pt(), casc.yOmega(), collision.posZ(), collision.multFT0M(), weight);
registry.fill(HIST("hMassOmegaEffCorrected"), casc.mOmega(), casc.sign(), casc.pt(), casc.yOmega(), collision.posZ(), collision.multFT0M(), weight);
registry.fill(HIST("hRapidityOmega"), casc.yOmega());
}
registry.fill(HIST("hV0Radius"), casc.v0radius());
Expand Down Expand Up @@ -868,7 +868,6 @@
registry.fill(HIST("hMEQA"), 0.5);
continue;
}

registry.fill(HIST("MixedEvents/hMEVz1"), col1.posZ());
registry.fill(HIST("MixedEvents/hMEVz2"), col2.posZ());

Expand Down
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