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[PWGCF] Femto: split D0/D0bar mass QA by candidate sign #17338

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Merged
ariedel-cern merged 1 commit into from
Aug 5, 2026
+10 −12
Merged

[PWGCF] Femto: split D0/D0bar mass QA by candidate sign #17338

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2 changes: 0 additions & 2 deletions PWGCF/Femto/Core/charmHadronBuilder.h
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Expand Up @@ -369,8 +369,6 @@ class CharmHadronBuilder
}
if (mProduceD0Extras) {
d0Products.producedD0Extras(
mHfHelper.invMassD0ToPiK(candidate),
mHfHelper.invMassD0barToKPi(candidate),
candidate.cpa(),
candidate.cpaXY(),
candidate.decayLength(),
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16 changes: 10 additions & 6 deletions PWGCF/Femto/Core/charmHadronHistManager.h
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Expand Up @@ -102,8 +102,8 @@ template <auto& Prefix>
struct ConfD0QaBinning : o2::framework::ConfigurableGroup {
std::string prefix = Prefix;
o2::framework::Configurable<bool> plotTopology{"plotTopology", true, "Generate topological QA plots (cpa, decayLength, impactParameterProduct, cosThetaStar)"};
o2::framework::ConfigurableAxis massD0{"massD0", {{200, 1.7, 2.0}}, "Mass for D0 (Kpi) hypothesis"};
o2::framework::ConfigurableAxis massD0bar{"massD0bar", {{200, 1.7, 2.0}}, "Mass for D0bar (piK) hypothesis"};
o2::framework::ConfigurableAxis massD0{"massD0", {{200, 1.7, 2.0}}, "Mass of candidates selected as D0"};
o2::framework::ConfigurableAxis massD0bar{"massD0bar", {{200, 1.7, 2.0}}, "Mass of candidates selected as D0bar"};
o2::framework::ConfigurableAxis mlScore{"mlScore", {{100, 0.f, 1.f}}, "BDT ML score (bkg/prompt/non-prompt)"};
o2::framework::ConfigurableAxis cpa{"cpa", {{100, 0.9f, 1.f}}, "Cosine of pointing angle"};
o2::framework::ConfigurableAxis decayLength{"decayLength", {{200, 0.f, 0.2f}}, "Decay length (cm)"};
Expand All @@ -126,8 +126,8 @@ constexpr std::array<histmanager::HistInfo<CharmHadronHist>, kCharmHadronHistLas
{kPtVsEta, o2::framework::HistType::kTH2F, "hPtVsEta", "p_{T} vs #eta; p_{T} (GeV/#it{c}); #eta"},
{kPtVsPhi, o2::framework::HistType::kTH2F, "hPtVsPhi", "p_{T} vs #varphi; p_{T} (GeV/#it{c}); #varphi"},
{kPhiVsEta, o2::framework::HistType::kTH2F, "hPhiVsEta", "#varphi vs #eta; #varphi; #eta"},
{kMassD0, o2::framework::HistType::kTH1F, "hMassD0", "D0 (K#pi) mass; m_{K#pi} (GeV/#it{c}^{2}); Entries"},
{kMassD0bar, o2::framework::HistType::kTH1F, "hMassD0bar", "#bar{D0} (#piK) mass; m_{#piK} (GeV/#it{c}^{2}); Entries"},
{kMassD0, o2::framework::HistType::kTH1F, "hMassD0", "Invariant mass of D^{0} candidates; m_{Inv} (GeV/#it{c}^{2}); Entries"},
{kMassD0bar, o2::framework::HistType::kTH1F, "hMassD0bar", "Invariant mass of #bar{D}^{0} candidates; m_{Inv} (GeV/#it{c}^{2}); Entries"},
{kMlBkg, o2::framework::HistType::kTH1F, "hMlBkg", "BDT background score; ML score (bkg); Entries"},
{kMlPrompt, o2::framework::HistType::kTH1F, "hMlPrompt", "BDT prompt score; ML score (prompt); Entries"},
{kMlNonPrompt, o2::framework::HistType::kTH1F, "hMlNonPrompt", "BDT non-prompt score; ML score (non-prompt); Entries"},
Expand Down Expand Up @@ -424,8 +424,12 @@ class CharmHadronHistManager
template <typename T>
void fillQa(T const& charmHadronCandidate)
{
mHistogramRegistry->fill(HIST(charmHadronPrefix) + HIST(QaDir) + HIST(getHistName(kMassD0, HistTable)), charmHadronCandidate.massD0());
mHistogramRegistry->fill(HIST(charmHadronPrefix) + HIST(QaDir) + HIST(getHistName(kMassD0bar, HistTable)), charmHadronCandidate.massD0bar());
// invariant mass split by hypothesis: D0 (sign > 0) or D0bar (sign < 0)
if (charmHadronCandidate.sign() > 0) {
mHistogramRegistry->fill(HIST(charmHadronPrefix) + HIST(QaDir) + HIST(getHistName(kMassD0, HistTable)), charmHadronCandidate.mass());
} else {
mHistogramRegistry->fill(HIST(charmHadronPrefix) + HIST(QaDir) + HIST(getHistName(kMassD0bar, HistTable)), charmHadronCandidate.mass());
}

// BDT scores of the accepted hypothesis: D0 (sign > 0) or D0bar (sign < 0)
float mlBkg = 0.f;
Expand Down
4 changes: 0 additions & 4 deletions PWGCF/Femto/DataModel/FemtoTables.h
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Expand Up @@ -1172,8 +1172,6 @@ DECLARE_SOA_INDEX_COLUMN_FULL(PosDau, posDau, int32_t, FTracks, "_PosDau"); //!
DECLARE_SOA_INDEX_COLUMN_FULL(NegDau, negDau, int32_t, FTracks, "_NegDau"); //! - prong (kaon in D0)

// QA/debug columns
DECLARE_SOA_COLUMN(MassD0, massD0, float); //! Kpi-hypothesis mass
DECLARE_SOA_COLUMN(MassD0bar, massD0bar, float); //! piK-hypothesis mass
DECLARE_SOA_COLUMN(Cpa, cpa, float);
DECLARE_SOA_COLUMN(CpaXY, cpaXY, float);
DECLARE_SOA_COLUMN(DecayLength, decayLength, float);
Expand Down Expand Up @@ -1216,8 +1214,6 @@ using FD0Masks = FD0Masks_001;
using StoredFD0Masks = StoredFD0Masks_001;

DECLARE_SOA_TABLE_STAGED_VERSIONED(FD0Extras_001, "FD0EXTRA", 1, //! femto D0 QA / debug
femtocharmhadrons::MassD0, // both hypotheses; the main
femtocharmhadrons::MassD0bar, // table only stores the accepted one
femtocharmhadrons::Cpa,
femtocharmhadrons::CpaXY,
femtocharmhadrons::DecayLength,
Expand Down
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