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[PWGCF] Addition of dEdx distributions after PID cut #15297

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Merged
victor-gonzalez merged 3 commits into from
Mar 7, 2026
+32 −4
Merged

[PWGCF] Addition of dEdx distributions after PID cut #15297

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2a9307d
Addition of dEdx distributions after PID cut
Mar 6, 2026
90018cb
Please consider the following formatting changes
alibuild Mar 6, 2026
25404f0
Merge pull request #39 from alibuild/alibot-cleanup-15297
Preet-Bhanjan Mar 6, 2026
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36 changes: 32 additions & 4 deletions PWGCF/TwoParticleCorrelations/Tasks/pidDiHadron.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -120,7 +120,7 @@ struct PidDiHadron {
O2_DEFINE_CONFIGURABLE(cfgGetNsigmaQA, bool, true, "Get QA histograms for selection of pions, kaons, and protons")
O2_DEFINE_CONFIGURABLE(cfgGetdEdx, bool, true, "Get dEdx histograms for pions, kaons, and protons")
O2_DEFINE_CONFIGURABLE(cfgUseAntiLambda, bool, true, "Use AntiLambda candidates for analysis")
O2_DEFINE_CONFIGURABLE(cfgPIDUseRejection, bool, true, "Turn off and on the exclusion criteria for PID determination")
O2_DEFINE_CONFIGURABLE(cfgPIDUseRejection, bool, true, "True: use exclusion exclusion criteria for PID determination, false: don't use exclusion")

struct : ConfigurableGroup {
O2_DEFINE_CONFIGURABLE(cfgMultCentHighCutFunction, std::string, "[0] + [1]*x + [2]*x*x + [3]*x*x*x + [4]*x*x*x*x + 10.*([5] + [6]*x + [7]*x*x + [8]*x*x*x + [9]*x*x*x*x)", "Functional for multiplicity correlation cut");
Expand Down Expand Up @@ -504,6 +504,10 @@ struct PidDiHadron {
histos.add("TpcdEdx_ptwise", "", {HistType::kTHnSparseD, {{axisPt, axisTpcSignal, axisNsigmaTOF}}});
histos.add("ExpTpcdEdx_ptwise", "", {HistType::kTHnSparseD, {{axisPt, axisTpcSignal, axisNsigmaTOF}}});
histos.add("ExpSigma_ptwise", "", {HistType::kTHnSparseD, {{axisPt, axisSigma, axisNsigmaTOF}}});

histos.add("TpcdEdx_ptwise_afterCut", "", {HistType::kTHnSparseD, {{axisPt, axisTpcSignal, axisNsigmaTOF}}});
histos.add("ExpTpcdEdx_ptwise_afterCut", "", {HistType::kTHnSparseD, {{axisPt, axisTpcSignal, axisNsigmaTOF}}});
histos.add("ExpSigma_ptwise_afterCut", "", {HistType::kTHnSparseD, {{axisPt, axisSigma, axisNsigmaTOF}}});
}
} // TPC-TOF PID QA hists
if (cfgUseItsPID) {
Expand Down Expand Up @@ -792,20 +796,44 @@ struct PidDiHadron {
{
switch (pid) {
case 1: // For Pions
if (!cfgUseItsPID)
if (!cfgUseItsPID) {
if (cfgGetdEdx) {
double tpcExpSignalPi = track1.tpcSignal() - (track1.tpcNSigmaPi() * track1.tpcExpSigmaPi());

histos.fill(HIST("TpcdEdx_ptwise_afterCut"), track1.pt(), track1.tpcSignal(), track1.tofNSigmaPi());
histos.fill(HIST("ExpTpcdEdx_ptwise_afterCut"), track1.pt(), tpcExpSignalPi, track1.tofNSigmaPi());
histos.fill(HIST("ExpSigma_ptwise_afterCut"), track1.pt(), track1.tpcExpSigmaPi(), track1.tofNSigmaPi());
}
histos.fill(HIST("TofTpcNsigma_after"), track1.tpcNSigmaPi(), track1.tofNSigmaPi(), track1.pt());
}
if (cfgUseItsPID)
histos.fill(HIST("TofItsNsigma_after"), itsResponse.nSigmaITS<o2::track::PID::Pion>(track1), track1.tofNSigmaPi(), track1.pt());
break;
case 2: // For Kaons
if (!cfgUseItsPID)
if (!cfgUseItsPID) {
if (cfgGetdEdx) {
double tpcExpSignalKa = track1.tpcSignal() - (track1.tpcNSigmaKa() * track1.tpcExpSigmaKa());

histos.fill(HIST("TpcdEdx_ptwise_afterCut"), track1.pt(), track1.tpcSignal(), track1.tofNSigmaKa());
histos.fill(HIST("ExpTpcdEdx_ptwise_afterCut"), track1.pt(), tpcExpSignalKa, track1.tofNSigmaKa());
histos.fill(HIST("ExpSigma_ptwise_afterCut"), track1.pt(), track1.tpcExpSigmaKa(), track1.tofNSigmaKa());
}
histos.fill(HIST("TofTpcNsigma_after"), track1.tpcNSigmaKa(), track1.tofNSigmaKa(), track1.pt());
}
if (cfgUseItsPID)
histos.fill(HIST("TofItsNsigma_after"), itsResponse.nSigmaITS<o2::track::PID::Kaon>(track1), track1.tofNSigmaKa(), track1.pt());
break;
case 3: // For Protons
if (!cfgUseItsPID)
if (!cfgUseItsPID) {
if (cfgGetdEdx) {
double tpcExpSignalPr = track1.tpcSignal() - (track1.tpcNSigmaPr() * track1.tpcExpSigmaPr());

histos.fill(HIST("TpcdEdx_ptwise_afterCut"), track1.pt(), track1.tpcSignal(), track1.tofNSigmaPr());
histos.fill(HIST("ExpTpcdEdx_ptwise_afterCut"), track1.pt(), tpcExpSignalPr, track1.tofNSigmaPr());
histos.fill(HIST("ExpSigma_ptwise_afterCut"), track1.pt(), track1.tpcExpSigmaPr(), track1.tofNSigmaPr());
}
histos.fill(HIST("TofTpcNsigma_after"), track1.tpcNSigmaPr(), track1.tofNSigmaPr(), track1.pt());
}
if (cfgUseItsPID)
histos.fill(HIST("TofItsNsigma_after"), itsResponse.nSigmaITS<o2::track::PID::Proton>(track1), track1.tofNSigmaPr(), track1.pt());
break;
Expand Down
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