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[PWGLF] Strangeness in jets fix process reco MC for centrality #13641

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Merged
ercolessi merged 1 commit into from
Nov 3, 2025
+11 −5
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[PWGLF] Strangeness in jets fix process reco MC for centrality #13641

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16 changes: 11 additions & 5 deletions PWGLF/Tasks/Strangeness/strangenessInJets.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -75,7 +75,7 @@ using std::array;

// Define convenient aliases for joined AOD tables
using SelCollisions = soa::Join<aod::Collisions, aod::EvSels, aod::CentFT0Ms>;
using SimCollisions = soa::Join<aod::Collisions, aod::EvSels, aod::McCentFT0Ms, aod::McCollisionLabels>;
using SimCollisions = soa::Join<aod::Collisions, aod::EvSels, aod::McCollisionLabels>;
using DaughterTracks = soa::Join<aod::Tracks, aod::TracksIU, aod::TracksExtra, aod::TracksCovIU, aod::TracksDCA,
aod::pidTPCFullPi, aod::pidTPCFullKa, aod::pidTPCFullPr,
aod::pidTOFFullPi, aod::pidTOFFullKa, aod::pidTOFFullPr>;
Expand Down Expand Up @@ -1429,9 +1429,9 @@ struct StrangenessInJets {
PROCESS_SWITCH(StrangenessInJets, processMCgenerated, "process generated events", false);

// Reconstructed MC events
void processMCreconstructed(SimCollisions const& collisions, DaughterTracksMC const& mcTracks,
aod::V0Datas const& fullV0s, aod::CascDataExt const& Cascades,
const aod::McParticles&)
void processMCreconstructed(SimCollisions const& collisions, soa::Join<aod::McCollisions, aod::McCentFT0Ms> const&,
DaughterTracksMC const& mcTracks, aod::V0Datas const& fullV0s,
aod::CascDataExt const& Cascades, const aod::McParticles&)
{
// Define per-event containers
std::vector<fastjet::PseudoJet> fjParticles;
Expand All @@ -1446,6 +1446,12 @@ struct StrangenessInJets {
// Loop over reconstructed collisions
for (const auto& collision : collisions) {

if (!collision.has_mcCollision()) {
continue;
}

const auto& mcCollision = collision.mcCollision_as<soa::Join<aod::McCollisions, aod::McCentFT0Ms>>();

// Clear containers at the start of the event loop
fjParticles.clear();
selectedJet.clear();
Expand All @@ -1466,7 +1472,7 @@ struct StrangenessInJets {
registryMC.fill(HIST("number_of_events_mc_rec"), 2.5);

// Event multiplicity
const float multiplicity = collision.centFT0M();
const float multiplicity = mcCollision.centFT0M();

// Number of V0 and cascades per collision
auto v0sPerColl = fullV0s.sliceBy(perCollisionV0, collision.globalIndex());
Expand Down
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