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[PWGLF] added histogram for spectra normalization #12719

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Merged
alcaliva merged 4 commits into from
Aug 25, 2025
Merged

[PWGLF] added histogram for spectra normalization #12719

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2bd3640
[PWGLF] added histogram for spectra normalization
alcaliva Aug 24, 2025
b38d464
removed whitespace
alcaliva Aug 24, 2025
9005306
fixed rapidity calculation
alcaliva Aug 24, 2025
ff0069b
fixed linter
alcaliva Aug 24, 2025
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26 changes: 26 additions & 0 deletions PWGLF/Tasks/Nuspex/antinucleiInJets.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -256,6 +256,10 @@ struct AntinucleiInJets {
// Generated spectra of antiprotons
registryMC.add("antiproton_gen_jet", "antiproton_gen_jet", HistType::kTH1F, {{nbins, min, max, "#it{p}_{T} (GeV/#it{c})"}});
registryMC.add("antiproton_gen_ue", "antiproton_gen_ue", HistType::kTH1F, {{nbins, min, max, "#it{p}_{T} (GeV/#it{c})"}});

// Normalization histogram
registryMC.add("antiproton_y_phi_jet", "antiproton_y_phi_jet", HistType::kTH2F, {{2000, -1.0, 1.0, "#it{y}"}, {2000, 0.0, TwoPI, "#Delta#phi"}});
registryMC.add("antiproton_y_phi_ue", "antiproton_y_phi_ue", HistType::kTH2F, {{2000, -1.0, 1.0, "#it{y}"}, {2000, 0.0, TwoPI, "#Delta#phi"}});
}

// Reconstructed antiproton spectra in jets and UE (MC-matched) with TPC/TOF PID
Expand Down Expand Up @@ -1459,6 +1463,14 @@ struct AntinucleiInJets {
if (particle.eta() < minEta || particle.eta() > maxEta)
continue;

// Fill normalization histogram
double px = particle.px();
double py = particle.py();
double pz = particle.pz();
double energy = std::sqrt(MassProton * MassProton + px * px + py * py + pz * pz);
double y = 0.5 * std::log((energy + pz) / (energy - pz));
registryMC.fill(HIST("antiproton_y_phi_jet"), y, getDeltaPhi(particle.phi(), jet.phi()));

// Fill histogram for generated antiprotons
registryMC.fill(HIST("antiproton_gen_jet"), particle.pt());
}
Expand Down Expand Up @@ -1491,6 +1503,20 @@ struct AntinucleiInJets {
if (deltaRUe1 > maxConeRadius && deltaRUe2 > maxConeRadius)
continue;

// Fill normalization histogram
double px = protonVec.Px();
double py = protonVec.Py();
double pz = protonVec.Pz();
double energy = std::sqrt(MassProton * MassProton + px * px + py * py + pz * pz);
double y = 0.5 * std::log((energy + pz) / (energy - pz));

if (deltaRUe1 < maxConeRadius) {
registryMC.fill(HIST("antiproton_y_phi_ue"), y, getDeltaPhi(protonVec.Phi(), ueAxis1.Phi()));
}
if (deltaRUe2 < maxConeRadius) {
registryMC.fill(HIST("antiproton_y_phi_ue"), y, getDeltaPhi(protonVec.Phi(), ueAxis2.Phi()));
}

// Fill histogram for antiprotons in the UE
registryMC.fill(HIST("antiproton_gen_ue"), protonVec.Pt());
}
Expand Down
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