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[PWGLF] perMCColl preslice + config for MCPhi filter #12113

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ercolessi merged 1 commit into from
Jul 18, 2025
+9 −3
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[PWGLF] perMCColl preslice + config for MCPhi filter #12113

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12 changes: 9 additions & 3 deletions PWGLF/Tasks/Strangeness/phik0shortanalysis.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -181,6 +181,9 @@
Configurable<bool> fillMethodSingleWeight{"fillMethodSingleWeight", false, "Fill method Single Weight"};
Configurable<bool> applyEfficiency{"applyEfficiency", false, "Use efficiency for filling histograms"};

// Configurable for MCPhi filter
Configurable<bool> filterOnMcPhi{"filterOnMcPhi", true, "Filter on MC Phi"};

// Configurable for event mixing
Configurable<int> cfgNoMixedEvents{"cfgNoMixedEvents", 5, "Number of mixed events per event"};

Expand Down Expand Up @@ -244,6 +247,9 @@
// Cache for manual slicing
SliceCache cache;

// Preslice for manual sicing
Preslice<aod::McParticles> perMCColl = aod::mcparticle::mcCollisionId;

// Positive and negative tracks partitions
Partition<FullTracks> posTracks = aod::track::signed1Pt > trackConfigs.cfgCutCharge;
Partition<FullTracks> negTracks = aod::track::signed1Pt < trackConfigs.cfgCutCharge;
Expand Down Expand Up @@ -1633,7 +1639,7 @@
if (mcTrack.isPhysicalPrimary()) {
mcPionHist.fill(HIST("h3RecMCDCAxyPrimPi"), track.pt(), track.dcaXY());
} else {
if (mcTrack.getProcess() == 4) { // Selection of secondary pions from weak decay

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
mcPionHist.fill(HIST("h3RecMCDCAxySecWeakDecayPi"), track.pt(), track.dcaXY());
} else { // Selection of secondary pions from material interactions
mcPionHist.fill(HIST("h3RecMCDCAxySecMaterialPi"), track.pt(), track.dcaXY());
Expand Down Expand Up @@ -2106,7 +2112,7 @@
if (mcParticle1.pdgCode() != o2::constants::physics::Pdg::kPhi)
continue;
auto kDaughters = mcParticle1.daughters_as<aod::McParticles>();
if (kDaughters.size() != 2)

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
bool isPosKaon = false, isNegKaon = false;
for (const auto& kDaughter : kDaughters) {
Expand Down Expand Up @@ -2243,7 +2249,7 @@
continue;
if (cfgisGenMCForClosure) {
auto kDaughters = mcParticle2.daughters_as<aod::McParticles>();
if (kDaughters.size() != 2)

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
bool isPosKaon = false, isNegKaon = false;
for (const auto& kDaughter : kDaughters) {
Expand Down Expand Up @@ -2320,7 +2326,7 @@
continue;
if (cfgisGenMCForClosure) {
auto kDaughters = mcParticle2.daughters_as<aod::McParticles>();
if (kDaughters.size() != 2)

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
bool isPosKaon = false, isNegKaon = false;
for (const auto& kDaughter : kDaughters) {
Expand Down Expand Up @@ -2388,9 +2394,9 @@
return;
const auto& mcCollision = collision.mcCollision_as<MCCollisions>();

auto mcParticlesThisColl = mcParticles.sliceByCached(aod::mcparticle::mcCollisionId, mcCollision.globalIndex(), cache);
auto mcParticlesThisColl = mcParticles.sliceBy(perMCColl, mcCollision.globalIndex());

if (!eventHasMCPhi(mcParticlesThisColl))
if (filterOnMcPhi && !eventHasMCPhi(mcParticlesThisColl))
return;

float genmultiplicity = mcCollision.centFT0M();
Expand Down Expand Up @@ -2429,7 +2435,7 @@
return;
if (!pwglf::isINELgtNmc(mcParticles, 0, pdgDB))
return;
if (!eventHasMCPhi(mcParticles))
if (filterOnMcPhi && !eventHasMCPhi(mcParticles))
return;

float genmultiplicity = mcCollision.centFT0M();
Expand Down Expand Up @@ -2826,7 +2832,7 @@
if (mcTrack.isPhysicalPrimary()) {
mcPionHist.fill(HIST("h3RecMCDCAxyPrimPi"), track.pt(), track.dcaXY());
} else {
if (mcTrack.getProcess() == 4) { // Selection of secondary pions from weak decay

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
mcPionHist.fill(HIST("h3RecMCDCAxySecWeakDecayPi"), track.pt(), track.dcaXY());
} else { // Selection of secondary pions from material interactions
mcPionHist.fill(HIST("h3RecMCDCAxySecMaterialPi"), track.pt(), track.dcaXY());
Expand Down
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