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[PWGHF] Skim creator: Fix and improve axes of track histograms #14824

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Merged
vkucera merged 2 commits into from
Feb 5, 2026
Merged

[PWGHF] Skim creator: Fix and improve axes of track histograms #14824

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21956b0
Fix bug in eta range
vkucera Feb 5, 2026
bbf0d63
Factor out common constants
vkucera Feb 5, 2026
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37 changes: 21 additions & 16 deletions PWGHF/TableProducer/trackIndexSkimCreator.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -406,30 +406,35 @@ struct HfTrackIndexSkimCreatorTagSelTracks {
}

if (config.fillHistograms) {
const AxisSpec axisPtProng{360, 0., 36., "#it{p}_{T}^{track} (GeV/#it{c})"};
const AxisSpec axisDca{400, -2., 2., "DCAxy to prim. vtx. (cm)"};
const auto scaleEtaMax = 1.2;
const auto nBinsPerEta = 50;

// general tracks
registry.add("hRejTracks", "Tracks;;entries", {HistType::kTH1D, {{25, 0.5, 25.5}}});
registry.add("hPtNoCuts", "all tracks;#it{p}_{T}^{track} (GeV/#it{c});entries", {HistType::kTH1D, {{360, 0., 36.}}});
registry.add("hPtNoCuts", "all tracks;#it{p}_{T}^{track} (GeV/#it{c});entries", {HistType::kTH1D, {axisPtProng}});

// 2-prong histograms
registry.add("hPtCuts2Prong", "tracks selected for 2-prong vertexing;#it{p}_{T}^{track} (GeV/#it{c});entries", {HistType::kTH1D, {{360, 0., 36.}}});
registry.add("hDCAToPrimXYVsPtCuts2Prong", "tracks selected for 2-prong vertexing;#it{p}_{T}^{track} (GeV/#it{c});DCAxy to prim. vtx. (cm);entries", {HistType::kTH2D, {{360, 0., 36.}, {400, -2., 2.}}});
registry.add("hEtaCuts2Prong", "tracks selected for 2-prong vertexing;#it{#eta};entries", {HistType::kTH1D, {{static_cast<int>(0.6 * (config.etaMaxTrack2Prong - config.etaMinTrack2Prong) * 100), -1.2 * config.etaMinTrack2Prong, 1.2 * config.etaMaxTrack2Prong}}});
registry.add("hPtCuts2Prong", "tracks selected for 2-prong vertexing;#it{p}_{T}^{track} (GeV/#it{c});entries", {HistType::kTH1D, {axisPtProng}});
registry.add("hDCAToPrimXYVsPtCuts2Prong", "tracks selected for 2-prong vertexing;#it{p}_{T}^{track} (GeV/#it{c});DCAxy to prim. vtx. (cm);entries", {HistType::kTH2D, {axisPtProng, axisDca}});
registry.add("hEtaCuts2Prong", "tracks selected for 2-prong vertexing;#it{#eta};entries", {HistType::kTH1D, {{static_cast<int>(scaleEtaMax * (config.etaMaxTrack2Prong - config.etaMinTrack2Prong) * nBinsPerEta), scaleEtaMax * config.etaMinTrack2Prong, scaleEtaMax * config.etaMaxTrack2Prong}}});
// 3-prong histograms
registry.add("hPtCuts3Prong", "tracks selected for 3-prong vertexing;#it{p}_{T}^{track} (GeV/#it{c});entries", {HistType::kTH1D, {{360, 0., 36.}}});
registry.add("hDCAToPrimXYVsPtCuts3Prong", "tracks selected for 3-prong vertexing;#it{p}_{T}^{track} (GeV/#it{c});DCAxy to prim. vtx. (cm);entries", {HistType::kTH2D, {{360, 0., 36.}, {400, -2., 2.}}});
registry.add("hEtaCuts3Prong", "tracks selected for 3-prong vertexing;#it{#eta};entries", {HistType::kTH1D, {{static_cast<int>(0.6 * (config.etaMaxTrack3Prong - config.etaMinTrack3Prong) * 100), -1.2 * config.etaMinTrack3Prong, 1.2 * config.etaMaxTrack3Prong}}});
registry.add("hPtCuts3Prong", "tracks selected for 3-prong vertexing;#it{p}_{T}^{track} (GeV/#it{c});entries", {HistType::kTH1D, {axisPtProng}});
registry.add("hDCAToPrimXYVsPtCuts3Prong", "tracks selected for 3-prong vertexing;#it{p}_{T}^{track} (GeV/#it{c});DCAxy to prim. vtx. (cm);entries", {HistType::kTH2D, {axisPtProng, axisDca}});
registry.add("hEtaCuts3Prong", "tracks selected for 3-prong vertexing;#it{#eta};entries", {HistType::kTH1D, {{static_cast<int>(scaleEtaMax * (config.etaMaxTrack3Prong - config.etaMinTrack3Prong) * nBinsPerEta), scaleEtaMax * config.etaMinTrack3Prong, scaleEtaMax * config.etaMaxTrack3Prong}}});
// bachelor (for V0 + bachelor decays) histograms
registry.add("hPtCutsV0bachelor", "tracks selected for V0-bachelor vertexing;#it{p}_{T}^{track} (GeV/#it{c});entries", {HistType::kTH1D, {{360, 0., 36.}}});
registry.add("hDCAToPrimXYVsPtCutsV0bachelor", "tracks selected for V0-bachelor vertexing;#it{p}_{T}^{track} (GeV/#it{c});DCAxy to prim. vtx. (cm);entries", {HistType::kTH2D, {{360, 0., 36.}, {400, -2., 2.}}});
registry.add("hEtaCutsV0bachelor", "tracks selected for V0-bachelor vertexing;#it{#eta};entries", {HistType::kTH1D, {{static_cast<int>(0.6 * (config.etaMaxTrackBach - config.etaMinTrackBach) * 100), -1.2 * config.etaMinTrackBach, 1.2 * config.etaMaxTrackBach}}});
registry.add("hPtCutsV0bachelor", "tracks selected for V0-bachelor vertexing;#it{p}_{T}^{track} (GeV/#it{c});entries", {HistType::kTH1D, {axisPtProng}});
registry.add("hDCAToPrimXYVsPtCutsV0bachelor", "tracks selected for V0-bachelor vertexing;#it{p}_{T}^{track} (GeV/#it{c});DCAxy to prim. vtx. (cm);entries", {HistType::kTH2D, {axisPtProng, axisDca}});
registry.add("hEtaCutsV0bachelor", "tracks selected for V0-bachelor vertexing;#it{#eta};entries", {HistType::kTH1D, {{static_cast<int>(scaleEtaMax * (config.etaMaxTrackBach - config.etaMinTrackBach) * nBinsPerEta), scaleEtaMax * config.etaMinTrackBach, scaleEtaMax * config.etaMaxTrackBach}}});
// soft pion (for D*) histograms
registry.add("hPtCutsSoftPionForDstar", "tracks selected for D* soft pion;#it{p}_{T}^{track} (GeV/#it{c});entries", {HistType::kTH1D, {{360, 0., 36.}}});
registry.add("hDCAToPrimXYVsPtCutsSoftPionForDstar", "tracks selected for D* soft pion;#it{p}_{T}^{track} (GeV/#it{c});DCAxy to prim. vtx. (cm);entries", {HistType::kTH2D, {{360, 0., 36.}, {400, -2., 2.}}});
registry.add("hEtaCutsSoftPionForDstar", "tracks selected for D* soft pion;#it{#eta};entries", {HistType::kTH1D, {{static_cast<int>(0.6 * (config.etaMaxSoftPionForDstar - config.etaMinSoftPionForDstar) * 100), -1.2 * config.etaMinSoftPionForDstar, 1.2 * config.etaMaxSoftPionForDstar}}});
registry.add("hPtCutsSoftPionForDstar", "tracks selected for D* soft pion;#it{p}_{T}^{track} (GeV/#it{c});entries", {HistType::kTH1D, {axisPtProng}});
registry.add("hDCAToPrimXYVsPtCutsSoftPionForDstar", "tracks selected for D* soft pion;#it{p}_{T}^{track} (GeV/#it{c});DCAxy to prim. vtx. (cm);entries", {HistType::kTH2D, {axisPtProng, axisDca}});
registry.add("hEtaCutsSoftPionForDstar", "tracks selected for D* soft pion;#it{#eta};entries", {HistType::kTH1D, {{static_cast<int>(scaleEtaMax * (config.etaMaxSoftPionForDstar - config.etaMinSoftPionForDstar) * nBinsPerEta), scaleEtaMax * config.etaMinSoftPionForDstar, scaleEtaMax * config.etaMaxSoftPionForDstar}}});
// bachelor (for cascade + bachelor decays) histograms
registry.add("hPtCutsCascadeBachelor", "tracks selected for cascade-bachelor vertexing;#it{p}_{T}^{track} (GeV/#it{c});entries", {HistType::kTH1D, {{360, 0., 36.}}});
registry.add("hDCAToPrimXYVsPtCutsCascadeBachelor", "tracks selected for cascade-bachelor vertexing;#it{p}_{T}^{track} (GeV/#it{c});DCAxy to prim. vtx. (cm);entries", {HistType::kTH2D, {{360, 0., 36.}, {400, -2., 2.}}});
registry.add("hEtaCutsCascadeBachelor", "tracks selected for cascade-bachelor vertexing;#it{#eta};entries", {HistType::kTH1D, {{static_cast<int>(0.6 * (config.etaMaxTrackBachLfCasc - config.etaMinTrackBachLfCasc) * 100), -1.2 * config.etaMinTrackBachLfCasc, 1.2 * config.etaMaxTrackBachLfCasc}}});
registry.add("hPtCutsCascadeBachelor", "tracks selected for cascade-bachelor vertexing;#it{p}_{T}^{track} (GeV/#it{c});entries", {HistType::kTH1D, {axisPtProng}});
registry.add("hDCAToPrimXYVsPtCutsCascadeBachelor", "tracks selected for cascade-bachelor vertexing;#it{p}_{T}^{track} (GeV/#it{c});DCAxy to prim. vtx. (cm);entries", {HistType::kTH2D, {axisPtProng, axisDca}});
registry.add("hEtaCutsCascadeBachelor", "tracks selected for cascade-bachelor vertexing;#it{#eta};entries", {HistType::kTH1D, {{static_cast<int>(scaleEtaMax * (config.etaMaxTrackBachLfCasc - config.etaMinTrackBachLfCasc) * nBinsPerEta), scaleEtaMax * config.etaMinTrackBachLfCasc, scaleEtaMax * config.etaMaxTrackBachLfCasc}}});

const std::string cutNames[nCuts + 1] = {"selected", "rej pT", "rej eta", "rej track quality", "rej dca"};
const std::string candNames[CandidateType::NCandidateTypes] = {"2-prong", "3-prong", "bachelor", "dstar", "lfCascBachelor"};
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