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[Trigger,PWGHF] Add Xic ct QA histogram to HFFilter task #16224

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Merged
fgrosa merged 4 commits into from
May 12, 2026
+12 −7
Merged

[Trigger,PWGHF] Add Xic ct QA histogram to HFFilter task #16224

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15b5794
Add Xic+ ct QA histogram to HF filter task
creetz16 May 12, 2026
5ce119d
Correct mass value
creetz16 May 12, 2026
051c8b8
Fix shared pointer declaration
creetz16 May 12, 2026
312cac7
Fix order of arguments
creetz16 May 12, 2026
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7 changes: 4 additions & 3 deletions EventFiltering/PWGHF/HFFilter.cxx
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@@ -1,4 +1,4 @@
// Copyright 2019-2020 CERN and copyright holders of ALICE O2.

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[name/workflow-file] 

Name of a workflow file must match the name of the main struct in it (without the PWG prefix). (Class implementation files should be in "Core" directories.)
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
Expand Down Expand Up @@ -153,7 +153,7 @@
} enableWrongMassHyp;

// parameters for Sigma_C proton trigger
Configurable<LabeledArray<float>> cutsSigmaCPr{

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[name/configurable] 

Use lowerCamelCase for names of configurables and use the same name for the struct member as for the JSON string. (Declare the type and names on the same line.)
"cutsSigmaCPr",
{cutsSigmaCPrDefault[0],
static_cast<uint32_t>(labelsRowsSigmaCPr.size()),
Expand Down Expand Up @@ -184,7 +184,7 @@
Configurable<bool> acceptBdtBkgOnly{"acceptBdtBkgOnly", true, "Enable / disable selection based on BDT bkg score only"};

// CCDB configuration
Configurable<std::string> url{"ccdb-url", "http://alice-ccdb.cern.ch", "url of the ccdb repository"};

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[name/configurable] 

Use lowerCamelCase for names of configurables and use the same name for the struct member as for the JSON string. (Declare the type and names on the same line.)

// TPC PID calibrations
Configurable<int> setTPCCalib{"setTPCCalib", 0, "0 is not use re-calibrations, 1 is compute TPC post-calibrated n-sigmas, 2 is using TPC Spline"};
Expand Down Expand Up @@ -249,7 +249,7 @@
std::array<std::shared_ptr<TH1>, kNCharmParticles> hBDTScorePrompt{};
std::array<std::shared_ptr<TH1>, kNCharmParticles> hBDTScoreNonPrompt{};
std::array<std::shared_ptr<TH2>, kNV0> hArmPod{};
std::shared_ptr<TH2> hV0Selected;
std::shared_ptr<TH2> hV0Selected, hMassVsCtCharmBaryonToXiPiPi;
std::array<std::shared_ptr<TH2>, 2> hMassXi{}; // not tracked and tracked
std::array<std::shared_ptr<TH2>, kNBeautyParticles> hCpaVsPtB{};
std::array<std::shared_ptr<TH2>, kNBeautyParticles> hDecayLengthVsPtB{};
Expand Down Expand Up @@ -348,7 +348,7 @@

hProcessedEvents = registry.add<TH1>("fProcessedEvents", "HF - event filtered;;counts", HistType::kTH1D, {{kNtriggersHF + 2, -0.5, +kNtriggersHF + 1.5}});
for (auto iBin = 0; iBin < kNtriggersHF + 2; ++iBin) {
if (iBin < 2)

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
hProcessedEvents->GetXaxis()->SetBinLabel(iBin + 1, eventTitles[iBin].data());
else
hProcessedEvents->GetXaxis()->SetBinLabel(iBin + 1, hfTriggerNames[iBin - 2].data());
Expand Down Expand Up @@ -390,6 +390,7 @@
hMassVsPtC[kNCharmParticles + 15] = registry.add<TH2>("fMassVsPtCharmBaryonToXiPi", "#it{M} vs. #it{p}_{T} distribution of triggered #Xi+#pi candidates;#it{p}_{T} (GeV/#it{c});#it{M} (GeV/#it{c}^{2});counts", HistType::kTH2D, {ptAxis, massAxisC[kNCharmParticles + 15]});
hMassVsPtC[kNCharmParticles + 16] = registry.add<TH2>("fMassVsPtCharmBaryonToXiKa", "#it{M} vs. #it{p}_{T} distribution of triggered #Xi+K candidates;#it{p}_{T} (GeV/#it{c});#it{M} (GeV/#it{c}^{2});counts", HistType::kTH2D, {ptAxis, massAxisC[kNCharmParticles + 16]});
hMassVsPtC[kNCharmParticles + 17] = registry.add<TH2>("fMassVsPtCharmBaryonToXiPiPi", "#it{M} vs. #it{p}_{T} distribution of triggered #Xi+#pi+#pi candidates;#it{p}_{T} (GeV/#it{c});#it{M} (GeV/#it{c}^{2});counts", HistType::kTH2D, {ptAxis, massAxisC[kNCharmParticles + 17]});
hMassVsCtCharmBaryonToXiPiPi = registry.add<TH2>("fMassVsCtCharmBaryonToXiPiPi", "#it{M} vs. ct distribution of triggered #Xi+#pi+#pi candidates;ct (cm);#it{M} (GeV/#it{c}^{2});counts", HistType::kTH2D, {ctAxis, massAxisC[kNCharmParticles + 17]});
// JPsi
hMassVsPtC[kNCharmParticles + 18] = registry.add<TH2>("fMassVsPtJPsiToMuMu", "#it{M} vs. #it{p}_{T} distribution of triggered J/#psi to #mu#mu candidates;#it{p}_{T} (GeV/#it{c});#it{M} (GeV/#it{c}^{2});counts", HistType::kTH2D, {ptAxis, massAxisC[kNCharmParticles + 18]});
// Lc resonances
Expand Down Expand Up @@ -570,7 +571,7 @@
std::vector<float> scores{};
if (preselD0) {
scores.insert(scores.end(), cand2Prong.mlProbSkimD0ToKPi().begin(), cand2Prong.mlProbSkimD0ToKPi().end());
if (scores.size() != 3) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
scores.resize(3);
scores[0] = 2.;
scores[1] = -1.;
Expand Down Expand Up @@ -1342,7 +1343,7 @@
continue;
}

if (scores[iCharmPart].size() != 3) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
scores[iCharmPart].resize(3);
scores[iCharmPart][0] = 2.;
scores[iCharmPart][1] = -1.;
Expand Down Expand Up @@ -1609,7 +1610,7 @@
/// - it has the correct charge (±1)
/// - it is in the correct mass range
// check the charge for SigmaC++K- candidates
if (!keepEvent[kSigmaCPPK] && (std::abs(chargeSc + track.sign()) == 1 && std::abs(chargeSc) == 2)) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
// check the invariant mass
float massSigmaCPKPi{-999.}, massSigmaCPiKP{-999.}, deltaMassXicResoPKPi{-999.}, deltaMassXicResoPiKP{-999.};
float ptSigmaCKaon = RecoDecay::pt(pVecSigmaC, pVecFourth);
Expand Down Expand Up @@ -1911,7 +1912,7 @@
std::array<float, 2> dcaInfo;
o2::track::TrackParCov trackParCasc;
o2::track::TrackParCov trackParCascTrack;
if (requireStrangenessTrackingAny < 2) { // needed for at least one of the two

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
trackParCasc = o2::track::TrackParCov(cascCand.vtx, cascCand.mom, cascCand.cov, cascCand.sign, true);
trackParCasc.setPID(o2::track::PID::XiMinus);
trackParCasc.setAbsCharge(1); // to be sure
Expand Down Expand Up @@ -1991,10 +1992,10 @@
bool isSelXiBachBach{false};
if (requireStrangenessTracking->get(0u, 1u) > 0) {
if (hasStrangeTrack) {
isSelXiBachBach = helper.isSelectedXiBachBach<3>(trackParCascTrack, {trackParBachelor, trackParBachelorSecond}, collision, dfStrangeness3, activateQA, hMassVsPtC[kNCharmParticles + 17]);
isSelXiBachBach = helper.isSelectedXiBachBach<3>(trackParCascTrack, {trackParBachelor, trackParBachelorSecond}, collision, dfStrangeness3, activateQA, hMassVsPtC[kNCharmParticles + 17], hMassVsCtCharmBaryonToXiPiPi);
}
} else { // vertex with only the two bachelors
isSelXiBachBach = helper.isSelectedXiBachBach<2>(trackParCasc, {trackParBachelor, trackParBachelorSecond}, collision, df2, activateQA, hMassVsPtC[kNCharmParticles + 17]);
isSelXiBachBach = helper.isSelectedXiBachBach<2>(trackParCasc, {trackParBachelor, trackParBachelorSecond}, collision, df2, activateQA, hMassVsPtC[kNCharmParticles + 17], hMassVsCtCharmBaryonToXiPiPi);
}
if (isSelXiBachBach) {
keepEvent[kCharmBarToXi2Bach] = true;
Expand Down
12 changes: 8 additions & 4 deletions EventFiltering/PWGHF/HFFilterHelpers.h
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Expand Up @@ -288,6 +288,7 @@

static const o2::framework::AxisSpec ptAxis{50, 0.f, 50.f};
static const o2::framework::AxisSpec pAxis{50, 0.f, 10.f};
static const o2::framework::AxisSpec ctAxis{300, 0.f, 0.3f};
static const o2::framework::AxisSpec kstarAxis{200, 0.f, 2.f};
static const o2::framework::AxisSpec etaAxis{30, -1.5f, 1.5f};
static const o2::framework::AxisSpec nSigmaAxis{100, -10.f, 10.f};
Expand All @@ -295,7 +296,7 @@
static const o2::framework::AxisSpec qtAxis{100, 0.f, 0.25f};
static const o2::framework::AxisSpec bdtAxis{100, 0.f, 1.f};
static const o2::framework::AxisSpec phiAxis{36, 0., o2::constants::math::TwoPI};
static const std::array<o2::framework::AxisSpec, kNCharmParticles + 24> massAxisC = {o2::framework::AxisSpec{250, 1.65f, 2.15f}, o2::framework::AxisSpec{250, 1.65f, 2.15f}, o2::framework::AxisSpec{250, 1.75f, 2.25f}, o2::framework::AxisSpec{250, 2.05f, 2.55f}, o2::framework::AxisSpec{250, 2.25f, 2.75f}, o2::framework::AxisSpec{200, 0.139f, 0.159f}, o2::framework::AxisSpec{250, 0.f, 0.25f}, o2::framework::AxisSpec{250, 0.f, 0.25f}, o2::framework::AxisSpec{200, 0.48f, 0.88f}, o2::framework::AxisSpec{200, 0.48f, 0.88f}, o2::framework::AxisSpec{200, 1.1f, 1.4f}, o2::framework::AxisSpec{200, 1.1f, 1.4f}, o2::framework::AxisSpec{200, 1.1f, 1.4f}, o2::framework::AxisSpec{200, 1.1f, 1.4f}, o2::framework::AxisSpec{170, 0.13f, 0.3f}, o2::framework::AxisSpec{170, 0.13f, 0.3f}, o2::framework::AxisSpec{200, 0.4f, 0.8f}, o2::framework::AxisSpec{200, 0.4f, 0.8f}, o2::framework::AxisSpec{200, 0.4f, 0.8f}, o2::framework::AxisSpec{200, 0.4f, 0.8f}, o2::framework::AxisSpec{350, 2.3f, 3.0f}, o2::framework::AxisSpec{350, 2.3f, 3.0f}, o2::framework::AxisSpec{350, 2.3f, 3.0f}, o2::framework::AxisSpec{240, 2.4f, 3.6f}, o2::framework::AxisSpec{300, 0.7f, 1.3f}, o2::framework::AxisSpec{300, 0.7f, 1.3f}, o2::framework::AxisSpec{300, 0.7f, 1.3f}, o2::framework::AxisSpec{300, 0.7f, 1.3f}, o2::framework::AxisSpec{300, 0.14f, 0.26f}};

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[pdg/explicit-mass] 

Avoid hard-coded particle masses. Use o2::constants::physics::Mass... instead.
static const std::array<o2::framework::AxisSpec, nTotBeautyParts> massAxisB = {o2::framework::AxisSpec{500, 4.2f, 6.2f}, o2::framework::AxisSpec{500, 4.2f, 6.2f}, o2::framework::AxisSpec{500, 5.4f, 7.4f}, o2::framework::AxisSpec{500, 4.2f, 6.2f}, o2::framework::AxisSpec{500, 4.4f, 6.4f}, o2::framework::AxisSpec{400, 5.0f, 6.6f}, o2::framework::AxisSpec{500, 4.2f, 6.2f}, o2::framework::AxisSpec{500, 4.2f, 6.2f}, o2::framework::AxisSpec{500, 4.2f, 6.2f}, o2::framework::AxisSpec{500, 4.2f, 6.2f}, o2::framework::AxisSpec{400, 5.0f, 6.6f}, o2::framework::AxisSpec{240, 5.8f, 7.0f}};

// default values for configurables
Expand Down Expand Up @@ -718,7 +719,7 @@
template <typename T, typename C, typename H2>
bool isSelectedXiBach(T const& trackParCasc, T const& trackParBachelor, int8_t isSelBachelor, C const& collision, o2::vertexing::DCAFitterN<2>& dcaFitter, const int& activateQA, H2 hMassVsPtXiPi, H2 hMassVsPtXiKa);
template <int Nprongs, typename T, typename C, typename H2>
bool isSelectedXiBachBach(T const& trackParCasc, std::array<T, 2> const& trackParBachelor, C const& collision, o2::vertexing::DCAFitterN<Nprongs>& dcaFitter, const int& activateQA, H2 hMassVsPtXiPiPi);
bool isSelectedXiBachBach(T const& trackParCasc, std::array<T, 2> const& trackParBachelor, C const& collision, o2::vertexing::DCAFitterN<Nprongs>& dcaFitter, const int& activateQA, H2 hMassVsPtXiPiPi, H2 hMassVsCtXiPiPi);
template <bool is4ThetaC = false, typename T>
bool isSelectedProtonFromLcResoOrThetaC(const T& track);
// helpers
Expand Down Expand Up @@ -918,7 +919,7 @@
return kRejected;
}

if (std::fabs(trackPar.getEta()) > 0.8) {

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return kRejected;
}

Expand Down Expand Up @@ -2506,8 +2507,9 @@
/// \param dcaFitter is the DCAFitter
/// \param activateQA is the flag to activate the QA
/// \param hMassVsPtXiPiPi is the 2D histogram with pT vs mass(XiPiPi)
/// \param hMassVsCtXiPiPi is the 2D histogram with ct vs mass(XiPiPi)
template <int Nprongs, typename T, typename C, typename H2>
inline bool HfFilterHelper::isSelectedXiBachBach(T const& trackParCasc, std::array<T, 2> const& trackParBachelor, C const& collision, o2::vertexing::DCAFitterN<Nprongs>& dcaFitter, const int& activateQA, H2 hMassVsPtXiPiPi)
inline bool HfFilterHelper::isSelectedXiBachBach(T const& trackParCasc, std::array<T, 2> const& trackParBachelor, C const& collision, o2::vertexing::DCAFitterN<Nprongs>& dcaFitter, const int& activateQA, H2 hMassVsPtXiPiPi, H2 hMassVsCtXiPiPi)
{
// compute pT
std::array<float, 3> pVecBachelorFirst{}, pVecBachelorSecond{}, pVecCascade{};
Expand Down Expand Up @@ -2570,13 +2572,15 @@
if (RecoDecay::cpa(primVtx, std::array{vtx[0], vtx[1], vtx[2]}, momXiBachBach) < mCosPaMinXiBach[1]) {
return false;
}

if (RecoDecay::distance(primVtx, vtx) < mDecLenMinXiBach[1]) {
auto decLenXiBachBach = RecoDecay::distance(primVtx, vtx);
if (decLenXiBachBach < mDecLenMinXiBach[1]) {
return false;
}

auto ctXiBachBach = RecoDecay::ct(momXiBachBach, decLenXiBachBach, massXic);
if (activateQA) {
hMassVsPtXiPiPi->Fill(ptXiBachBach, massXiPiPi);
hMassVsCtXiPiPi->Fill(ctXiBachBach, massXiPiPi);
}
}

Expand Down
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