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[PWGCF] Addition of extra dEdx information #15133

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Merged
victor-gonzalez merged 4 commits into from
Feb 24, 2026
+22 −1
Merged

[PWGCF] Addition of extra dEdx information #15133

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897a00a
Addition of extra dEdx information
Feb 24, 2026
a73d726
Merge branch 'AliceO2Group:master' into master
Preet-Bhanjan Feb 24, 2026
93782f4
Please consider the following formatting changes
alibuild Feb 24, 2026
de5a71c
Merge pull request #38 from alibuild/alibot-cleanup-15133
Preet-Bhanjan Feb 24, 2026
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23 changes: 22 additions & 1 deletion PWGCF/TwoParticleCorrelations/Tasks/pidDiHadron.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -118,7 +118,7 @@ struct PidDiHadron {
O2_DEFINE_CONFIGURABLE(cfgUseOnlyTPC, bool, true, "Use only TPC PID for daughter selection")
O2_DEFINE_CONFIGURABLE(cfgPIDParticle, int, 0, "1 = pion, 2 = kaon, 3 = proton, 4 = kshort, 5 = lambda, 6 = phi, 0 for no PID")
O2_DEFINE_CONFIGURABLE(cfgGetNsigmaQA, bool, true, "Get QA histograms for selection of pions, kaons, and protons")
O2_DEFINE_CONFIGURABLE(cfgGetdEdx, 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")

Expand Down Expand Up @@ -540,6 +540,12 @@ struct PidDiHadron {
histos.add("ExpTpcdEdx_ptwise_pi", "", {HistType::kTHnSparseD, {{axisPt, axisTpcSignal, axisNsigmaTOF}}});
histos.add("ExpTpcdEdx_ptwise_ka", "", {HistType::kTHnSparseD, {{axisPt, axisTpcSignal, axisNsigmaTOF}}});
histos.add("ExpTpcdEdx_ptwise_pr", "", {HistType::kTHnSparseD, {{axisPt, axisTpcSignal, axisNsigmaTOF}}});

histos.add("TpcdEdx_ptwise_pi_physprim", "", {HistType::kTHnSparseD, {{axisPt, axisTpcSignal, axisNsigmaTOF}}});
histos.add("TpcdEdx_ptwise_ka_physprim", "", {HistType::kTHnSparseD, {{axisPt, axisTpcSignal, axisNsigmaTOF}}});
histos.add("TpcdEdx_ptwise_pr_physprim", "", {HistType::kTHnSparseD, {{axisPt, axisTpcSignal, axisNsigmaTOF}}});

histos.add("TpcdEdx_ptwise_all_physprim", "", {HistType::kTHnSparseD, {{axisPt, axisTpcSignal, axisNsigmaTOF}}});
}

histos.add("eventcount", "bin", {HistType::kTH1F, {{4, 0, 4, "bin"}}}); // histogram to see how many events are in the same and mixed event
Expand Down Expand Up @@ -1546,10 +1552,21 @@ struct PidDiHadron {
if (pidIndex == kProtons)
histos.fill(HIST("hNsigmaProtonSelected"), track.pt());

if (track.mcParticle().isPhysicalPrimary()) {
if (cfgPIDParticle == kPions)
histos.fill(HIST("TpcdEdx_ptwise_all_physprim"), track.pt(), track.tpcSignal(), track.tofNSigmaPi());
if (cfgPIDParticle == kKaons)
histos.fill(HIST("TpcdEdx_ptwise_all_physprim"), track.pt(), track.tpcSignal(), track.tofNSigmaKa());
if (cfgPIDParticle == kProtons)
histos.fill(HIST("TpcdEdx_ptwise_all_physprim"), track.pt(), track.tpcSignal(), track.tofNSigmaPr());
}

// Check the PDG code for the particles (MC truth) and match with analysed Nsigma PID
if (std::abs(track.mcParticle().pdgCode()) == PDG_t::kPiPlus) {
histos.fill(HIST("hNsigmaPionTrue"), track.pt());
histos.fill(HIST("TpcdEdx_ptwise_pi"), track.pt(), track.tpcSignal(), track.tofNSigmaPi());
if (track.mcParticle().isPhysicalPrimary())
histos.fill(HIST("TpcdEdx_ptwise_pi_physprim"), track.pt(), track.tpcSignal(), track.tofNSigmaPi());

double tpcExpSignalPi = track.tpcSignal() - (track.tpcNSigmaPi() * track.tpcExpSigmaPi());
histos.fill(HIST("ExpTpcdEdx_ptwise_pi"), track.pt(), tpcExpSignalPi, track.tofNSigmaPi());
Expand All @@ -1562,6 +1579,8 @@ struct PidDiHadron {
if (std::abs(track.mcParticle().pdgCode()) == PDG_t::kKPlus) {
histos.fill(HIST("hNsigmaKaonTrue"), track.pt());
histos.fill(HIST("TpcdEdx_ptwise_ka"), track.pt(), track.tpcSignal(), track.tofNSigmaKa());
if (track.mcParticle().isPhysicalPrimary())
histos.fill(HIST("TpcdEdx_ptwise_ka_physprim"), track.pt(), track.tpcSignal(), track.tofNSigmaKa());

double tpcExpSignalKa = track.tpcSignal() - (track.tpcNSigmaKa() * track.tpcExpSigmaKa());
histos.fill(HIST("ExpTpcdEdx_ptwise_ka"), track.pt(), tpcExpSignalKa, track.tofNSigmaKa());
Expand All @@ -1574,6 +1593,8 @@ struct PidDiHadron {
if (std::abs(track.mcParticle().pdgCode()) == PDG_t::kProton) {
histos.fill(HIST("hNsigmaProtonTrue"), track.pt());
histos.fill(HIST("TpcdEdx_ptwise_pr"), track.pt(), track.tpcSignal(), track.tofNSigmaPr());
if (track.mcParticle().isPhysicalPrimary())
histos.fill(HIST("TpcdEdx_ptwise_pr_physprim"), track.pt(), track.tpcSignal(), track.tofNSigmaPr());

double tpcExpSignalPr = track.tpcSignal() - (track.tpcNSigmaPr() * track.tpcExpSigmaPr());
histos.fill(HIST("ExpTpcdEdx_ptwise_pr"), track.pt(), tpcExpSignalPr, track.tofNSigmaPr());
Expand Down
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