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[PWGLF] NucleiTask - Fixed wrong pid for tracking in MC #15080

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Merged
maciacco merged 3 commits into from
Feb 21, 2026
+19 −3
Merged

[PWGLF] NucleiTask - Fixed wrong pid for tracking in MC #15080

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985dcb8
NucleiTask - Fix error
giovannimalfattore Oct 21, 2025
e68e3fb
NucleiTask - Fix bugs in mult dependent histos
giovannimalfattore Oct 21, 2025
7c4f33f
NucleiTask - Fixed wrong pid for tracking in MC
giovannimalfattore Feb 20, 2026
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22 changes: 19 additions & 3 deletions PWGLF/Tasks/Nuspex/LFNucleiBATask.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -781,8 +781,8 @@ struct LFNucleiBATask {
histos.add<TH1>("tracks/helium/h1antiHeliumSpectra_Z2", "#it{p}_{T} (#bar{He})", HistType::kTH1F, {ptHeAxis});

if (enableDebug) {
debugHistos.add<TH2>("tracks/helium/h2HeliumPidTrackingVsPt", "#it{p}_{T} (He) vs PIDforTracking", HistType::kTH2F, {{80, 0, 8}, {9, -0.5, 8.5}});
debugHistos.add<TH2>("tracks/helium/h2antiHeliumPidTrackingVsPt", "#it{p}_{T} (#bar{He}) vs PIDforTracking", HistType::kTH2F, {{80, 0, 8}, {9, -0.5, 8.5}});
debugHistos.add<TH2>("tracks/helium/h2HeliumPidTrackingVsPt", "#it{p}_{T} (He) vs PIDforTracking", HistType::kTH2F, {{80, 0, 8}, {12, -0.5, 11.5}});
debugHistos.add<TH2>("tracks/helium/h2antiHeliumPidTrackingVsPt", "#it{p}_{T} (#bar{He}) vs PIDforTracking", HistType::kTH2F, {{80, 0, 8}, {12, -0.5, 11.5}});
}

if (outFlagOptions.doTOFplots && enableCentrality) {
Expand Down Expand Up @@ -2165,6 +2165,8 @@ struct LFNucleiBATask {
spectraGen.add("helium/histPtRecHe", "PtRecHe", HistType::kTH1F, {{800, 0.f, 8.f}});
spectraGen.add("helium/histPtShiftHe", "PtReco-PtGen vs PtReco;#it{p}_{T}(reco); #it{p}_{T}(reco) - #it{p}_{T}(gen)", HistType::kTH2F, {{800, 0.f, 8.f}, {140, -1.f, 1.4f}});
spectraGen.add("helium/histPtShiftHeVsGen", "PtReco-PtGen vs PtGen;#it{p}_{T}(gen); #it{p}_{T}(reco) - #it{p}_{T}(gen)", HistType::kTH2F, {{800, 0.f, 8.f}, {140, -1.f, 1.4f}});
spectraGen.add("helium/histPtShiftHe_WrongPidAll", "PtReco-PtGen (He, wrong PIDforTracking) vs PtReco;#it{p}_{T}(reco); #it{p}_{T}(reco) - #it{p}_{T}(gen)", HistType::kTH2F, {{800, 0.f, 8.f}, {140, -1.f, 1.4f}});
spectraGen.add("helium/histPtShiftHe_WrongPidDe", "PtReco-PtGen (He, wrong PIDforTracking) vs PtReco;#it{p}_{T}(reco); #it{p}_{T}(reco) - #it{p}_{T}(gen)", HistType::kTH2F, {{800, 0.f, 8.f}, {140, -1.f, 1.4f}});
spectraGen.add("helium/histPtShiftHe_WrongPidTr", "PtReco-PtGen (He, wrong PIDforTracking) vs PtReco;#it{p}_{T}(reco); #it{p}_{T}(reco) - #it{p}_{T}(gen)", HistType::kTH2F, {{800, 0.f, 8.f}, {140, -1.f, 1.4f}});

spectraGen.add("helium/histPtShiftVsEtaHe", "PtReco-PtGen vs #eta", HistType::kTH2F, {{140, -1.4f, 1.4f}, {140, -1.f, 1.4f}});
Expand All @@ -2178,6 +2180,8 @@ struct LFNucleiBATask {
spectraGen.add("helium/histPtRecantiHe", "PtRecantiHe", HistType::kTH1F, {{800, 0.f, 8.f}});
spectraGen.add("helium/histPtShiftantiHe", "PtReco-PtGen vs PtReco; #it{p}_{T}(reco); #it{p}_{T}(reco) - #it{p}_{T}(gen)", HistType::kTH2F, {{800, 0.f, 8.f}, {140, -1.f, 1.4f}});
spectraGen.add("helium/histPtShiftantiHeVsGen", "PtReco-PtGen vs PtGen; #it{p}_{T}(gen); #it{p}_{T}(reco) - #it{p}_{T}(gen)", HistType::kTH2F, {{800, 0.f, 8.f}, {140, -1.f, 1.4f}});
spectraGen.add("helium/histPtShiftantiHe_WrongPidAll", "PtReco-PtGen (#bar{H}e, wrong PIDforTracking) vs PtReco;#it{p}_{T}(reco); #it{p}_{T}(reco) - #it{p}_{T}(gen)", HistType::kTH2F, {{800, 0.f, 8.f}, {140, -1.f, 1.4f}});
spectraGen.add("helium/histPtShiftantiHe_WrongPidDe", "PtReco-PtGen (#bar{H}e, wrong PIDforTracking) vs PtReco;#it{p}_{T}(reco); #it{p}_{T}(reco) - #it{p}_{T}(gen)", HistType::kTH2F, {{800, 0.f, 8.f}, {140, -1.f, 1.4f}});
spectraGen.add("helium/histPtShiftantiHe_WrongPidTr", "PtReco-PtGen (#bar{H}e, wrong PIDforTracking) vs PtReco;#it{p}_{T}(reco); #it{p}_{T}(reco) - #it{p}_{T}(gen)", HistType::kTH2F, {{800, 0.f, 8.f}, {140, -1.f, 1.4f}});
spectraGen.add("helium/histPtShiftVsEtaantiHe", "PtReco-PtGen vs #eta", HistType::kTH2F, {{140, -1.4f, 1.4f}, {140, -1.f, 1.4f}});

Expand Down Expand Up @@ -2466,6 +2470,8 @@ struct LFNucleiBATask {

isTritonTPCpid = std::abs(track.tpcNSigmaTr()) < nsigmaTPCvar.nsigmaTPCTr;
bool heliumPID = track.pidForTracking() == o2::track::PID::Helium3 || track.pidForTracking() == o2::track::PID::Alpha;
bool tritonPID = track.pidForTracking() == o2::track::PID::Triton;
bool deuteronPID = track.pidForTracking() == o2::track::PID::Deuteron;

float shiftPtPos = 0.f;
float shiftPtNeg = 0.f;
Expand Down Expand Up @@ -2539,7 +2545,7 @@ struct LFNucleiBATask {
}
if (enablePtShiftPID && fShiftPtPID) {
shiftPtPID = fShiftPtPID->Eval(2 * track.pt());
if (!heliumPID && (track.pt() < 2.4f)) {
if (tritonPID && (track.pt() <= 1.25f)) {
hePt = track.pt() - shiftPtPID / 2.f;
antihePt = track.pt() - shiftPtPID / 2.f;
}
Expand Down Expand Up @@ -3747,7 +3753,12 @@ struct LFNucleiBATask {
spectraGen.fill(HIST("helium/histPtShiftHe"), 2.f * hePt, 2.f * hePt - track.mcParticle().pt());
spectraGen.fill(HIST("helium/histPtShiftHeVsGen"), track.mcParticle().pt(), 2.f * hePt - track.mcParticle().pt());
if (!heliumPID)
spectraGen.fill(HIST("helium/histPtShiftHe_WrongPidAll"), 2.f * hePt, 2.f * hePt - track.mcParticle().pt());
if (tritonPID)
spectraGen.fill(HIST("helium/histPtShiftHe_WrongPidTr"), 2.f * hePt, 2.f * hePt - track.mcParticle().pt());
if (deuteronPID)
spectraGen.fill(HIST("helium/histPtShiftHe_WrongPidDe"), 2.f * hePt, 2.f * hePt - track.mcParticle().pt());

spectraGen.fill(HIST("helium/histPtShiftVsEtaHe"), track.eta(), 2.f * hePt - track.mcParticle().pt());
if (track.hasTOF() && outFlagOptions.doTOFplots) {
spectraGen.fill(HIST("helium/TOF/histPtShiftHe"), 2.f * hePt, 2.f * hePt - track.mcParticle().pt());
Expand Down Expand Up @@ -3826,7 +3837,12 @@ struct LFNucleiBATask {
spectraGen.fill(HIST("helium/histPtShiftantiHe"), 2.f * antihePt, 2.f * antihePt - track.mcParticle().pt());
spectraGen.fill(HIST("helium/histPtShiftantiHeVsGen"), track.mcParticle().pt(), 2.f * antihePt - track.mcParticle().pt());
if (!heliumPID)
spectraGen.fill(HIST("helium/histPtShiftantiHe_WrongPidAll"), 2.f * antihePt, 2.f * antihePt - track.mcParticle().pt());
if (tritonPID)
spectraGen.fill(HIST("helium/histPtShiftantiHe_WrongPidTr"), 2.f * antihePt, 2.f * antihePt - track.mcParticle().pt());
if (deuteronPID)
spectraGen.fill(HIST("helium/histPtShiftantiHe_WrongPidDe"), 2.f * antihePt, 2.f * antihePt - track.mcParticle().pt());

spectraGen.fill(HIST("helium/histPtShiftVsEtaantiHe"), track.eta(), 2.f * antihePt - track.mcParticle().pt());
if (track.hasTOF() && outFlagOptions.doTOFplots) {
spectraGen.fill(HIST("helium/TOF/histPtShiftantiHe"), 2.f * antihePt, 2.f * antihePt - track.mcParticle().pt());
Expand Down
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