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[PWGLF] Strangeness tof: implement BC start time shift #13472

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Merged
romainschotter merged 4 commits into from
Oct 21, 2025
Merged

[PWGLF] Strangeness tof: implement BC start time shift #13472

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d6a09b6
Implement BC start time shift
ddobrigk Oct 21, 2025
642561a
Please consider the following formatting changes (#490)
alibuild Oct 21, 2025
f8c1c94
Add extra safety for invalid TOF values
ddobrigk Oct 21, 2025
e59b881
Please consider the following formatting changes (#491)
alibuild Oct 21, 2025
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2 changes: 2 additions & 0 deletions PWGLF/TableProducer/Strangeness/strangederivedbuilder.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -389,6 +389,7 @@
}

histos.add("h2dNVerticesVsCentrality", "h2dNVerticesVsCentrality", kTH2D, {axisCentrality, axisNVertices});
histos.add("h2dCollisionTimesVsNTracks", "h2dCollisionTimesVsNTracks", kTH2D, {{100, -0.5f, 99.5}, {2000, -1000.0f, 1000.0f}});

// for QA and test purposes
auto hRawCentrality = histos.add<TH1>("hRawCentrality", "hRawCentrality", kTH1F, {axisRawCentrality});
Expand Down Expand Up @@ -461,7 +462,7 @@
if constexpr (requires { udCollIterator.gapSide(); }) { // check if this table is the expected one
auto udCollision = udCollisions.sliceBy(udCollisionsPerCollision, collIdx);
if (udCollision.size() == 1) { // check that the slicing provide a unique UD collision
for (auto& udColl : udCollision) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
gapSide = udColl.gapSide();
totalFT0AmplitudeA = udColl.totalFT0AmplitudeA();
totalFT0AmplitudeC = udColl.totalFT0AmplitudeC();
Expand Down Expand Up @@ -602,6 +603,7 @@
} else {
collisionEventTime[collision.globalIndex()] = -1e+6; // undefined
}
histos.fill(HIST("h2dCollisionTimesVsNTracks"), collisionNtracks[collision.globalIndex()], collisionEventTime[collision.globalIndex()]);
products.straEvTimes(collisionEventTime[collision.globalIndex()]);
}
}
Expand Down Expand Up @@ -965,7 +967,7 @@

void processPureSimulation(aod::McParticles const& mcParticles)
{
for (auto& mcp : mcParticles) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
if (TMath::Abs(mcp.y()) < 0.5) {
static_for<0, nSpecies - 1>([&](auto i) {
constexpr int index = i.value;
Expand All @@ -983,7 +985,7 @@
// identify best-of collision
int biggestNContribs = -1;
float bestCentrality = 100.5;
for (auto& collision : collisions) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
if (biggestNContribs < collision.numContrib()) {
biggestNContribs = collision.numContrib();
bestCentrality = collision.centFT0C();
Expand Down Expand Up @@ -1029,19 +1031,19 @@
for (auto& mcp : mcParticles) {
if (TMath::Abs(mcp.y()) < 0.5 && mcp.isPhysicalPrimary()) {
auto binNumber = hBinFinder->FindBin(mcCollision.bestCollisionCentFT0C(), mcp.pt()); // caution: pack
if (mcp.pdgCode() == 310)

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
genK0Short[binNumber]++;
if (mcp.pdgCode() == 3122)

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
genLambda[binNumber]++;
if (mcp.pdgCode() == -3122)

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
genAntiLambda[binNumber]++;
if (mcp.pdgCode() == 3312)

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
genXiMinus[binNumber]++;
if (mcp.pdgCode() == -3312)

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
genXiPlus[binNumber]++;
if (mcp.pdgCode() == 3334)

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
genOmegaMinus[binNumber]++;
if (mcp.pdgCode() == -3334)

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
genOmegaPlus[binNumber]++;
}
}
Expand Down
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