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[PWGCF] FemtoUniverse V0 Task -- updated track NSigma PID to address hasTOF #15610

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Merged
prchakra merged 1 commit into from
Apr 1, 2026
+21 −27
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[PWGCF] FemtoUniverse V0 Task -- updated track NSigma PID to address hasTOF #15610

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48 changes: 21 additions & 27 deletions PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackV0Extended.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -185,7 +185,7 @@
EfficiencyCorrection effCorrection{&effCorConfGroup};

static constexpr unsigned int V0ChildTable[][2] = {{0, 1}, {1, 0}, {1, 1}}; // Table to select the V0 children
static constexpr double v0InvMass[] = {1.115, 1.115, 0.497}; // Table to select invariant mass of V0s

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[pdg/explicit-mass] 

Avoid hard-coded particle masses. Use o2::constants::physics::Mass... instead.

FemtoUniverseContainer<femto_universe_container::EventType::same, femto_universe_container::Observable::kstar> sameEventCont;
FemtoUniverseContainer<femto_universe_container::EventType::mixed, femto_universe_container::Observable::kstar> mixedEventCont;
Expand All @@ -210,10 +210,24 @@

bool isNSigmaCombined(float mom, float nsigmaTPCParticle, float nsigmaTOFParticle, bool hasTOF)
{
if (mom <= confmom || hasTOF == 0) {
if (mom <= confmom) {
return (std::abs(nsigmaTPCParticle) < confNsigmaTPCParticle);
} else {
} else if (hasTOF == 1) {
return (std::hypot(nsigmaTOFParticle, nsigmaTPCParticle) < confNsigmaCombinedParticle);
} else {
return false;
}
}

template <typename T>
bool isNSigmaCombinedBitmask(float mom, const T& part)
{
if (mom <= confmom) {
return ((part.pidCut() & (1u << ConfTrkSelection.confTrackChoicePartOne)) != 0);
} else if ((part.pidCut() & 512u) != 0) {
return ((part.pidCut() & (64u << ConfTrkSelection.confTrackChoicePartOne)) != 0);
} else {
return false;
}
}

Expand Down Expand Up @@ -458,7 +472,7 @@
continue;

if (ConfV0Selection.confUseStrangenessTOF) {
if (((ConfV0Selection.confV0Type1 == 0) && (part.pidCut() & 3) != 3) || ((ConfV0Selection.confV0Type1 == 1) && (part.pidCut() & 12) != 12) || ((ConfV0Selection.confV0Type1 == 2) && (part.pidCut() & 48) != 48))

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
} else {
if ((posChild.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type1][0])) == 0 || (negChild.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type1][1])) == 0)
Expand Down Expand Up @@ -488,12 +502,8 @@
trackHistoPartOneNeg.fillQA<false, false>(part);
}
} else {
if ((part.pidCut() & 512u) != 0) {
if ((part.pidCut() & (64u << ConfTrkSelection.confTrackChoicePartOne)) == 0)
continue;
} else if ((part.pidCut() & (1u << ConfTrkSelection.confTrackChoicePartOne)) == 0) {
if (!isNSigmaCombinedBitmask(part.p(), part))
continue;
}
if (ConfTrkSelection.confChargePart1 > 0)
trackHistoPartOnePos.fillQA<false, false>(part);
if (ConfTrkSelection.confChargePart1 < 0)
Expand All @@ -511,12 +521,8 @@
if (!isParticleCombined(p1, ConfTrkSelection.confTrackChoicePartOne))
continue;
} else {
if ((p1.pidCut() & 512u) != 0) {
if ((p1.pidCut() & (64u << ConfTrkSelection.confTrackChoicePartOne)) == 0)
continue;
} else if ((p1.pidCut() & (1u << ConfTrkSelection.confTrackChoicePartOne)) == 0) {
if (!isNSigmaCombinedBitmask(p1.p(), p1))
continue;
}
}
// track cleaning
if (!pairCleaner.isCleanPair(p1, p2, parts)) {
Expand All @@ -542,7 +548,7 @@
continue;

if (ConfV0Selection.confUseStrangenessTOF) {
if (((ConfV0Selection.confV0Type1 == 0) && (p2.pidCut() & 3) != 3) || ((ConfV0Selection.confV0Type1 == 1) && (p2.pidCut() & 12) != 12) || ((ConfV0Selection.confV0Type1 == 2) && (p2.pidCut() & 48) != 48))

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
} else {
if ((posChild.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type1][0])) == 0 || (negChild.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type1][1])) == 0)
Expand Down Expand Up @@ -604,7 +610,7 @@
if ((posChild.pidCut() & (1u << V0ChildTable[ConfV0Selection.confV0Type1][0])) == 0 || (negChild.pidCut() & (1u << V0ChildTable[ConfV0Selection.confV0Type1][1])) == 0)
continue;
if (ConfV0Selection.confUseStrangenessTOF) {
if (((ConfV0Selection.confV0Type1 == 0) && (part.pidCut() & 3) != 3) || ((ConfV0Selection.confV0Type1 == 1) && (part.pidCut() & 12) != 12) || ((ConfV0Selection.confV0Type1 == 2) && (part.pidCut() & 48) != 48))

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
} else {
if ((posChild.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type1][0])) == 0 || (negChild.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type1][1])) == 0)
Expand Down Expand Up @@ -645,7 +651,7 @@
if ((posChild.pidCut() & (1u << V0ChildTable[ConfV0Selection.confV0Type2][0])) == 0 || (negChild.pidCut() & (1u << V0ChildTable[ConfV0Selection.confV0Type2][1])) == 0)
continue;
if (ConfV0Selection.confUseStrangenessTOF) {
if (((ConfV0Selection.confV0Type2 == 0) && (part.pidCut() & 3) != 3) || ((ConfV0Selection.confV0Type1 == 1) && (part.pidCut() & 12) != 12) || ((ConfV0Selection.confV0Type2 == 2) && (part.pidCut() & 48) != 48))

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
} else {
if ((posChild.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type2][0])) == 0 || (negChild.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type2][1])) == 0)
Expand Down Expand Up @@ -713,7 +719,7 @@
if ((posChild1.pidCut() & (1u << V0ChildTable[ConfV0Selection.confV0Type1][0])) == 0 || (negChild1.pidCut() & (1u << V0ChildTable[ConfV0Selection.confV0Type1][1])) == 0)
return false;
if (ConfV0Selection.confUseStrangenessTOF) {
if (((ConfV0Selection.confV0Type1 == 0) && (p1.pidCut() & 3) != 3) || ((ConfV0Selection.confV0Type1 == 1) && (p1.pidCut() & 12) != 12) || ((ConfV0Selection.confV0Type1 == 2) && (p1.pidCut() & 48) != 48))

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
return false;
} else {
if ((posChild1.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type1][0])) == 0 || (negChild1.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type1][1])) == 0)
Expand All @@ -737,7 +743,7 @@
if ((posChild2.pidCut() & (1u << V0ChildTable[ConfV0Selection.confV0Type2][0])) == 0 || (negChild2.pidCut() & (1u << V0ChildTable[ConfV0Selection.confV0Type2][1])) == 0)
return false;
if (ConfV0Selection.confUseStrangenessTOF) {
if (((ConfV0Selection.confV0Type2 == 0) && (p2.pidCut() & 3) != 3) || ((ConfV0Selection.confV0Type2 == 1) && (p2.pidCut() & 12) != 12) || ((ConfV0Selection.confV0Type2 == 2) && (p2.pidCut() & 48) != 48))

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
return false;
} else {
if ((posChild2.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type2][0])) == 0 || (negChild2.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type2][1])) == 0)
Expand All @@ -754,7 +760,7 @@
randgen = new TRandom2(0);
rand = randgen->Rndm();

if (rand > 0.5) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
part1 = p2;
part2 = p1;
}
Expand Down Expand Up @@ -986,12 +992,8 @@
if (!isParticleCombined(p1, ConfTrkSelection.confTrackChoicePartOne))
continue;
} else {
if ((p1.pidCut() & 512u) != 0) {
if ((p1.pidCut() & (64u << ConfTrkSelection.confTrackChoicePartOne)) == 0)
continue;
} else if ((p1.pidCut() & (1u << ConfTrkSelection.confTrackChoicePartOne)) == 0) {
if (!isNSigmaCombinedBitmask(p1.p(), p1))
continue;
}
}

const auto& posChild = parts.iteratorAt(p2.globalIndex() - 2 - parts.begin().globalIndex());
Expand All @@ -1010,7 +1012,7 @@
if ((posChild.pidCut() & (1u << V0ChildTable[ConfV0Selection.confV0Type1][0])) == 0 || (negChild.pidCut() & (1u << V0ChildTable[ConfV0Selection.confV0Type1][1])) == 0)
continue;
if (ConfV0Selection.confUseStrangenessTOF) {
if (((ConfV0Selection.confV0Type1 == 0) && (p2.pidCut() & 3) != 3) || ((ConfV0Selection.confV0Type1 == 1) && (p2.pidCut() & 12) != 12) || ((ConfV0Selection.confV0Type1 == 2) && (p2.pidCut() & 48) != 48))

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
} else {
if ((posChild.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type1][0])) == 0 || (negChild.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type1][1])) == 0)
Expand Down Expand Up @@ -1101,7 +1103,7 @@
if ((posChild1.pidCut() & (1u << V0ChildTable[ConfV0Selection.confV0Type1][0])) == 0 || (negChild1.pidCut() & (1u << V0ChildTable[ConfV0Selection.confV0Type1][1])) == 0)
continue;
if (ConfV0Selection.confUseStrangenessTOF) {
if (((ConfV0Selection.confV0Type1 == 0) && (p1.pidCut() & 3) != 3) || ((ConfV0Selection.confV0Type1 == 1) && (p1.pidCut() & 12) != 12) || ((ConfV0Selection.confV0Type1 == 2) && (p1.pidCut() & 48) != 48))

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
} else {
if ((posChild1.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type1][0])) == 0 || (negChild1.pidCut() & (8u << V0ChildTable[ConfV0Selection.confV0Type1][1])) == 0)
Expand Down Expand Up @@ -1684,12 +1686,8 @@
if (!isNSigmaCombined(part.p(), aod::pidtpc_tiny::binning::unPackInTable(part.tpcNSigmaStorePr()), aod::pidtof_tiny::binning::unPackInTable(part.tofNSigmaStorePr()), (part.pidCut() & 512u) != 0))
continue;
} else {
if ((part.pidCut() & 512u) != 0) {
if ((part.pidCut() & 64u) == 0) // 64 for proton combined
continue;
} else if ((part.pidCut() & 1u) == 0) {
if (!isNSigmaCombinedBitmask(part.p(), part))
continue;
}
}
registryMCreco.fill(HIST("plus/MCrecoPr"), mcpart.pt(), mcpart.eta());
registryMCreco.fill(HIST("plus/MCrecoPrPt"), mcpart.pt());
Expand All @@ -1715,12 +1713,8 @@
if (!isNSigmaCombined(part.p(), aod::pidtpc_tiny::binning::unPackInTable(part.tpcNSigmaStorePr()), aod::pidtof_tiny::binning::unPackInTable(part.tofNSigmaStorePr()), (part.pidCut() & 512u) != 0))
continue;
} else {
if ((part.pidCut() & 512u) != 0) {
if ((part.pidCut() & 64u) == 0) // 64 for proton combined
continue;
} else if ((part.pidCut() & 1u) == 0) {
if (!isNSigmaCombinedBitmask(part.p(), part))
continue;
}
}
registryMCreco.fill(HIST("minus/MCrecoPr"), mcpart.pt(), mcpart.eta());
registryMCreco.fill(HIST("minus/MCrecoPrPt"), mcpart.pt());
Expand Down
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