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[PWGLF] Add option for hypertriton kink analysis #12329

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Merged
fmazzasc merged 1 commit into from
Jul 31, 2025
Merged

[PWGLF] Add option for hypertriton kink analysis #12329

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3 changes: 3 additions & 0 deletions PWGLF/DataModel/LFHyperNucleiKinkTables.h
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ namespace o2::aod

namespace hyperkink
{
DECLARE_SOA_COLUMN(MagPolarity, magPolarity, int8_t); //! Magnetic field polarity
DECLARE_SOA_COLUMN(XPV, xPV, float); //! Primary vertex of the candidate (x direction)
DECLARE_SOA_COLUMN(YPV, yPV, float); //! Primary vertex of the candidate (y direction)
DECLARE_SOA_COLUMN(ZPV, zPV, float); //! Primary vertex of the candidate (z direction)
Expand Down Expand Up @@ -82,6 +83,7 @@ DECLARE_SOA_COLUMN(UpdatePzMothPV, updatePzMothPV, float); //! updated pz o

DECLARE_SOA_TABLE(HypKinkCand, "AOD", "HYPKINKCANDS",
o2::soa::Index<>,
hyperkink::MagPolarity,
hyperkink::XPV, hyperkink::YPV, hyperkink::ZPV,
hyperkink::XSV, hyperkink::YSV, hyperkink::ZSV,
hyperkink::IsMatter,
Expand All @@ -96,6 +98,7 @@ DECLARE_SOA_TABLE(HypKinkCand, "AOD", "HYPKINKCANDS",

DECLARE_SOA_TABLE(MCHypKinkCand, "AOD", "MCHYPKINKCANDS",
o2::soa::Index<>,
hyperkink::MagPolarity,
hyperkink::XPV, hyperkink::YPV, hyperkink::ZPV,
hyperkink::XSV, hyperkink::YSV, hyperkink::ZSV,
hyperkink::IsMatter,
Expand Down
8 changes: 8 additions & 0 deletions PWGLF/TableProducer/Common/kinkBuilder.cxx
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Expand Up @@ -91,6 +91,7 @@
struct kinkBuilder {

enum PartType { kSigmaMinus = 0,
kHypertriton,
kHyperhelium4sigma };

Produces<aod::KinkCands> outputDataTable;
Expand Down Expand Up @@ -161,6 +162,11 @@
mothMass = o2::constants::physics::MassSigmaMinus;
chargedDauMass = o2::constants::physics::MassPiMinus;
neutDauMass = o2::constants::physics::MassNeutron;
} else if (hypoMoth == kHypertriton) {
charge = 1;
mothMass = o2::constants::physics::MassHyperTriton;
chargedDauMass = o2::constants::physics::MassTriton;
neutDauMass = o2::constants::physics::MassPi0;
} else if (hypoMoth == kHyperhelium4sigma) {
charge = 2;
mothMass = o2::constants::physics::MassHyperHelium4;
Expand Down Expand Up @@ -199,6 +205,8 @@
AxisSpec massAxis(100, 1.1, 1.4, "m (GeV/#it{c}^{2})");
if (hypoMoth == kSigmaMinus) {
massAxis = AxisSpec{100, 1.1, 1.4, "m (GeV/#it{c}^{2})"};
} else if (hypoMoth == kHypertriton) {
massAxis = AxisSpec{100, 2.94, 3.2, "m (GeV/#it{c}^{2})"};
} else if (hypoMoth == kHyperhelium4sigma) {
massAxis = AxisSpec{100, 3.85, 4.25, "m (GeV/#it{c}^{2})"};
}
Expand All @@ -209,7 +217,7 @@
h2ClsMapPtMoth = qaRegistry.add<TH2>("h2ClsMapPtMoth", "; p_{T} (GeV/#it{c}); ITS cluster map", HistType::kTH2F, {ptAxis, itsClusterMapAxis});
h2ClsMapPtDaug = qaRegistry.add<TH2>("h2ClsMapPtDaug", "; p_{T} (GeV/#it{c}); ITS cluster map", HistType::kTH2F, {ptAxis, itsClusterMapAxis});

for (int i = 0; i < 5; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
mBBparamsDaug[i] = cfgBetheBlochParams->get("Daughter", Form("p%i", i));
}
mBBparamsDaug[5] = cfgBetheBlochParams->get("Daughter", "resolution");
Expand All @@ -218,8 +226,8 @@
template <typename T>
bool selectMothTrack(const T& candidate)
{
if (candidate.has_collision() && candidate.hasITS() && !candidate.hasTPC() && !candidate.hasTOF() && candidate.itsNCls() < 6 &&

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
candidate.itsNClsInnerBarrel() == 3 && candidate.itsChi2NCl() < 36 && candidate.pt() > minPtMoth) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
return true;
}
return false;
Expand All @@ -237,8 +245,8 @@
}

bool isGoodTPCCand = false;
if (candidate.itsNClsInnerBarrel() == 0 && candidate.itsNCls() < 4 &&

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
candidate.tpcNClsCrossedRows() > 0.8 * candidate.tpcNClsFindable() && candidate.tpcNClsFound() > nTPCClusMinDaug) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
isGoodTPCCand = true;
}

Expand Down Expand Up @@ -349,13 +357,13 @@

// get last layer hitted by the mother and the first layer hitted by the daughter
int lastLayerMoth = 0, firstLayerDaug = 0;
for (int i = 0; i < 7; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
if (trackMoth.itsClusterMap() & (1 << i)) {
lastLayerMoth = i;
}
}

for (int i = 0; i < 7; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
if (trackDaug.itsClusterMap() & (1 << i)) {
firstLayerDaug = i;
break;
Expand All @@ -370,13 +378,13 @@
continue;
}

for (int i = 0; i < 3; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
kinkCand.decVtx[i] -= kinkCand.primVtx[i];
}

propMothTrack.getPxPyPzGlo(kinkCand.momMoth);
propDaugTrack.getPxPyPzGlo(kinkCand.momDaug);
for (int i = 0; i < 3; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
kinkCand.momMoth[i] *= charge;
kinkCand.momDaug[i] *= charge;
}
Expand All @@ -386,7 +394,7 @@
kinkCand.kinkAngle = std::acos(spKink / (pMoth * pDaug));

std::array<float, 3> neutDauMom{0.f, 0.f, 0.f};
for (int i = 0; i < 3; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
neutDauMom[i] = kinkCand.momMoth[i] - kinkCand.momDaug[i];
}

Expand Down
4 changes: 2 additions & 2 deletions PWGLF/TableProducer/Nuspex/CMakeLists.txt
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Expand Up @@ -94,8 +94,8 @@ o2physics_add_dpl_workflow(nuclei-flow-trees
PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore O2::DetectorsBase O2Physics::EventFilteringUtils
COMPONENT_NAME Analysis)

o2physics_add_dpl_workflow(hyperhelium4sigma-reco-task
SOURCES hyperhelium4sigmaRecoTask.cxx
o2physics_add_dpl_workflow(hyperkink-reco-task
SOURCES hyperkinkRecoTask.cxx
PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
COMPONENT_NAME Analysis)

Expand Down
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