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[PWGHF] Add MC species templates for eID in taskSingleElectron #17920

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Merged
apalasciano merged 1 commit into from
Sep 16, 2026
Merged

[PWGHF] Add MC species templates for eID in taskSingleElectron #17920

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50 changes: 50 additions & 0 deletions PWGHF/HFL/Tasks/taskSingleElectron.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -171,6 +171,18 @@ struct HfTaskSingleElectron {
histos.add("hTpcNSigPtAfterTofCut", "", kTH2D, {{axisPtEl}, {axisNsig}});
histos.add("hTpcNSigPtQA", "", kTH2D, {{axisPtEl}, {axisNsig}});

// TPC nSigma(e) vs pT per MC truth species (electron, pion, kaon, proton, other), after the track selection and after the TOF electron selection
histos.add("hTpcNSigPtRecElectron", "MC truth e^{#pm} after track selection;#it{p}_{T} (GeV/#it{c});n#sigma_{e}^{TPC}", kTH2D, {{axisPtEl}, {axisNsig}});
histos.add("hTpcNSigPtRecPion", "MC truth #pi^{#pm} after track selection;#it{p}_{T} (GeV/#it{c});n#sigma_{e}^{TPC}", kTH2D, {{axisPtEl}, {axisNsig}});
histos.add("hTpcNSigPtRecKaon", "MC truth K^{#pm} after track selection;#it{p}_{T} (GeV/#it{c});n#sigma_{e}^{TPC}", kTH2D, {{axisPtEl}, {axisNsig}});
histos.add("hTpcNSigPtRecProton", "MC truth p after track selection;#it{p}_{T} (GeV/#it{c});n#sigma_{e}^{TPC}", kTH2D, {{axisPtEl}, {axisNsig}});
histos.add("hTpcNSigPtRecOther", "MC truth other after track selection;#it{p}_{T} (GeV/#it{c});n#sigma_{e}^{TPC}", kTH2D, {{axisPtEl}, {axisNsig}});
histos.add("hTpcNSigPtAfterTofCutRecElectron", "MC truth e^{#pm} after TOF selection;#it{p}_{T} (GeV/#it{c});n#sigma_{e}^{TPC}", kTH2D, {{axisPtEl}, {axisNsig}});
histos.add("hTpcNSigPtAfterTofCutRecPion", "MC truth #pi^{#pm} after TOF selection;#it{p}_{T} (GeV/#it{c});n#sigma_{e}^{TPC}", kTH2D, {{axisPtEl}, {axisNsig}});
histos.add("hTpcNSigPtAfterTofCutRecKaon", "MC truth K^{#pm} after TOF selection;#it{p}_{T} (GeV/#it{c});n#sigma_{e}^{TPC}", kTH2D, {{axisPtEl}, {axisNsig}});
histos.add("hTpcNSigPtAfterTofCutRecProton", "MC truth p after TOF selection;#it{p}_{T} (GeV/#it{c});n#sigma_{e}^{TPC}", kTH2D, {{axisPtEl}, {axisNsig}});
histos.add("hTpcNSigPtAfterTofCutRecOther", "MC truth other after TOF selection;#it{p}_{T} (GeV/#it{c});n#sigma_{e}^{TPC}", kTH2D, {{axisPtEl}, {axisNsig}});

// track impact parameter
histos.add("hDcaTrack", "", kTH2D, {{axisPtEl}, {axisTrackIp}});
histos.add("hDcaBeauty", "", kTH2D, {{axisPtEl}, {axisTrackIp}});
Expand Down Expand Up @@ -205,6 +217,42 @@ struct HfTaskSingleElectron {
histos.fill(HIST("hPtDcaZPreCut"), pt, track.dcaZ());
}

template <typename TrackType>
void fillTpcNSigPtRec(const TrackType& track, bool afterTofCut)
{
if (!track.has_mcParticle()) {
return;
}
double const pt = track.pt();
double const nSigmaEl = track.tpcNSigmaEl();
int const absPdg = std::abs(track.mcParticle().pdgCode());
if (!afterTofCut) {
if (absPdg == kElectron) {
histos.fill(HIST("hTpcNSigPtRecElectron"), pt, nSigmaEl);
} else if (absPdg == kPiPlus) {
histos.fill(HIST("hTpcNSigPtRecPion"), pt, nSigmaEl);
} else if (absPdg == kKPlus) {
histos.fill(HIST("hTpcNSigPtRecKaon"), pt, nSigmaEl);
} else if (absPdg == kProton) {
histos.fill(HIST("hTpcNSigPtRecProton"), pt, nSigmaEl);
} else {
histos.fill(HIST("hTpcNSigPtRecOther"), pt, nSigmaEl);
}
return;
}
if (absPdg == kElectron) {
histos.fill(HIST("hTpcNSigPtAfterTofCutRecElectron"), pt, nSigmaEl);
} else if (absPdg == kPiPlus) {
histos.fill(HIST("hTpcNSigPtAfterTofCutRecPion"), pt, nSigmaEl);
} else if (absPdg == kKPlus) {
histos.fill(HIST("hTpcNSigPtAfterTofCutRecKaon"), pt, nSigmaEl);
} else if (absPdg == kProton) {
histos.fill(HIST("hTpcNSigPtAfterTofCutRecProton"), pt, nSigmaEl);
} else {
histos.fill(HIST("hTpcNSigPtAfterTofCutRecOther"), pt, nSigmaEl);
}
}

template <typename TrackType>
bool trackSel(const TrackType& track)
{
Expand Down Expand Up @@ -566,6 +614,7 @@ struct HfTaskSingleElectron {

histos.fill(HIST("hTofNSigPt"), track.pt(), track.tofNSigmaEl());
histos.fill(HIST("hTpcNSigPt"), track.pt(), track.tpcNSigmaEl());
fillTpcNSigPtRec(track, false);

int mpdg{}; // electron source pdg code
double mpt{}; // electron source pt
Expand Down Expand Up @@ -599,6 +648,7 @@ struct HfTaskSingleElectron {
}
histos.fill(HIST("hTofNSigPtQA"), track.pt(), track.tofNSigmaEl());
histos.fill(HIST("hTpcNSigPtAfterTofCut"), track.pt(), track.tpcNSigmaEl());
fillTpcNSigPtRec(track, true);

if (track.tpcNSigmaEl() < nSigmaTpcMin || track.tpcNSigmaEl() > nSigmaTpcMax) {
continue;
Expand Down
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