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[PWGCF] Add FT0M to multiplicity correlations #14380

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Merged
victor-gonzalez merged 1 commit into from
Jan 4, 2026
Merged

[PWGCF] Add FT0M to multiplicity correlations #14380

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5 changes: 4 additions & 1 deletion PWGCF/DataModel/CorrelationsDerived.h
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Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,7 @@

namespace cfmcparticle
{
DECLARE_SOA_INDEX_COLUMN(CFMcCollision, cfMcCollision); //! Index to reduced MC collision

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[name/o2-column] 

Use UpperCamelCase for names of O2 columns and matching lowerCamelCase names for their getters.
DECLARE_SOA_COLUMN(Pt, pt, float); //! pT (GeV/c)
DECLARE_SOA_COLUMN(Eta, eta, float); //! Pseudorapidity
DECLARE_SOA_COLUMN(Phi, phi, float); //! Phi angle
Expand All @@ -48,7 +48,7 @@

namespace cfcollision
{
DECLARE_SOA_INDEX_COLUMN(CFMcCollision, cfMcCollision); //! Index to reduced MC collision

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[name/o2-column] 

Use UpperCamelCase for names of O2 columns and matching lowerCamelCase names for their getters.
DECLARE_SOA_COLUMN(Multiplicity, multiplicity, float); //! Centrality/multiplicity value
} // namespace cfcollision
DECLARE_SOA_TABLE(CFCollisions, "AOD", "CFCOLLISION", //! Reduced collision table
Expand All @@ -64,8 +64,8 @@

namespace cftrack
{
DECLARE_SOA_INDEX_COLUMN(CFCollision, cfCollision); //! Index to collision

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[name/o2-column] 

Use UpperCamelCase for names of O2 columns and matching lowerCamelCase names for their getters.
DECLARE_SOA_INDEX_COLUMN(CFMcParticle, cfMCParticle); //! Index to MC particle

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[name/o2-column] 

Use UpperCamelCase for names of O2 columns and matching lowerCamelCase names for their getters.
DECLARE_SOA_COLUMN(Pt, pt, float); //! pT (GeV/c)
DECLARE_SOA_COLUMN(Eta, eta, float); //! Pseudorapidity
DECLARE_SOA_COLUMN(Phi, phi, float); //! Phi angle
Expand Down Expand Up @@ -94,9 +94,12 @@
CentFT0C = 0x1,
MultFV0A = 0x2,
MultNTracksPV = 0x4,
MultNTracksGlobal = 0x8
MultNTracksGlobal = 0x8,
CentFT0M = 0x10,
};

inline constexpr uint32_t NMultiplicityEstimators = __builtin_ctz(CentFT0M) + 1;

} // namespace cfmultset
DECLARE_SOA_TABLE(CFMultSets, "AOD", "CFMULTSET", cfmultset::Multiplicities); //! Auxilary multiplicity set table

Expand Down Expand Up @@ -127,8 +130,8 @@

namespace cf2prongtrack
{
DECLARE_SOA_INDEX_COLUMN_FULL(CFTrackProng0, cfTrackProng0, int, CFTracks, "_0"); //! Index to prong 1 CFTrack

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DECLARE_SOA_INDEX_COLUMN_FULL(CFTrackProng1, cfTrackProng1, int, CFTracks, "_1"); //! Index to prong 2 CFTrack

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[name/o2-column] 

Use UpperCamelCase for names of O2 columns and matching lowerCamelCase names for their getters.
DECLARE_SOA_COLUMN(Pt, pt, float); //! pT (GeV/c)
DECLARE_SOA_COLUMN(Eta, eta, float); //! Pseudorapidity
DECLARE_SOA_COLUMN(Phi, phi, float); //! Phi angle
Expand Down Expand Up @@ -179,8 +182,8 @@

namespace cf2prongmcpart
{
DECLARE_SOA_INDEX_COLUMN_FULL(CFParticleDaugh0, cfParticleDaugh0, int, CFMcParticles, "_0"); //! Index to prong 1 CFMcParticle

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Use UpperCamelCase for names of O2 columns and matching lowerCamelCase names for their getters.
DECLARE_SOA_INDEX_COLUMN_FULL(CFParticleDaugh1, cfParticleDaugh1, int, CFMcParticles, "_1"); //! Index to prong 2 CFMcParticle

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[name/o2-column] 

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DECLARE_SOA_COLUMN(Decay, decay, uint8_t); //! Particle decay and flags
DECLARE_SOA_DYNAMIC_COLUMN(McDecay, mcDecay, [](uint8_t decay) -> uint8_t { return decay & 0x7f; }); //! MC particle decay
enum ParticleDecayFlags {
Expand Down
6 changes: 5 additions & 1 deletion PWGCF/TableProducer/filterCorrelations.cxx
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Expand Up @@ -272,12 +272,14 @@
multiplicities.push_back(collision.multNTracksPV());
if (cfgEstimatorBitMask & aod::cfmultset::MultNTracksGlobal)
multiplicities.push_back(collision.multNTracksGlobal());
if (cfgEstimatorBitMask & aod::cfmultset::CentFT0M)
multiplicities.push_back(collision.centFT0M());
outputMultSets(multiplicities);
}

if (cfgTransientTables)
outputCollRefs(collision.globalIndex());
for (auto& track : tracks) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
if ((std::abs(track.dcaXY()) > dcaxymax) || (std::abs(track.dcaZ()) > dcazmax)) {
continue;
}
Expand All @@ -303,7 +305,7 @@
}
PROCESS_SWITCH(FilterCF, processDataPid, "Process data with PID", false);

void processDataMults(soa::Filtered<soa::Join<aod::Collisions, aod::EvSels, aod::CFMultiplicities, aod::CentFT0Cs, aod::PVMults, aod::FV0Mults, aod::MultsGlobal>>::iterator const& collision, aod::BCsWithTimestamps const&, soa::Filtered<soa::Join<aod::Tracks, aod::TracksExtra, aod::TrackSelection, aod::TracksDCA>> const& tracks)
void processDataMults(soa::Filtered<soa::Join<aod::Collisions, aod::EvSels, aod::CFMultiplicities, aod::CentFT0Ms, aod::CentFT0Cs, aod::PVMults, aod::FV0Mults, aod::MultsGlobal>>::iterator const& collision, aod::BCsWithTimestamps const&, soa::Filtered<soa::Join<aod::Tracks, aod::TracksExtra, aod::TrackSelection, aod::TracksDCA>> const& tracks)
{
processDataT(collision, tracks);
}
Expand Down Expand Up @@ -332,7 +334,7 @@
}

// PASS 1 on collisions: check which particles are kept
for (auto& collision : allCollisions) {

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[const-ref-in-for-loop] 

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auto groupedTracks = tracks.sliceBy(perCollision, collision.globalIndex());
if (cfgVerbosity > 0) {
LOGF(info, "processMC: Tracks for collision %d: %d | Vertex: %.1f (%d) | INT7: %d", collision.globalIndex(), groupedTracks.size(), collision.posZ(), collision.flags(), collision.sel7());
Expand Down Expand Up @@ -418,6 +420,8 @@
multiplicities.push_back(collision.multNTracksPV());
if (cfgEstimatorBitMask & aod::cfmultset::MultNTracksGlobal)
multiplicities.push_back(collision.multNTracksGlobal());
if (cfgEstimatorBitMask & aod::cfmultset::CentFT0M)
multiplicities.push_back(collision.centFT0M());
outputMultSets(multiplicities);
}

Expand Down
8 changes: 4 additions & 4 deletions PWGCF/Tasks/correlations.cxx
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Expand Up @@ -89,7 +89,7 @@ struct CorrelationTask {
O2_DEFINE_CONFIGURABLE(cfgCentBinsForMC, int, 0, "0 = OFF and 1 = ON for data like multiplicity/centrality bins for MC steps");
O2_DEFINE_CONFIGURABLE(cfgTrackBitMask, uint16_t, 0, "BitMask for track selection systematics; refer to the enum TrackSelectionCuts in filtering task");
O2_DEFINE_CONFIGURABLE(cfgMultCorrelationsMask, uint16_t, 0, "Selection bitmask for the multiplicity correlations. This should match the filter selection cfgEstimatorBitMask.")
O2_DEFINE_CONFIGURABLE(cfgMultCutFormula, std::string, "", "Multiplicity correlations cut formula. A result greater than zero results in accepted event. Parameters: [cFT0C] FT0C centrality, [mFV0A] V0A multiplicity, [mGlob] global track multiplicity, [mPV] PV track multiplicity")
O2_DEFINE_CONFIGURABLE(cfgMultCutFormula, std::string, "", "Multiplicity correlations cut formula. A result greater than zero results in accepted event. Parameters: [cFT0C] FT0C centrality, [mFV0A] V0A multiplicity, [mGlob] global track multiplicity, [mPV] PV track multiplicity, [cFT0M] FT0M centrality")

// Suggested values: Photon: 0.004; K0 and Lambda: 0.005
Configurable<LabeledArray<float>> cfgPairCut{"cfgPairCut", {kCfgPairCutDefaults[0], 5, {"Photon", "K0", "Lambda", "Phi", "Rho"}}, "Pair cuts on various particles"};
Expand Down Expand Up @@ -147,7 +147,7 @@ struct CorrelationTask {
std::vector<int> p2indexCache;

std::unique_ptr<TFormula> multCutFormula;
std::array<uint, 4> multCutFormulaParamIndex;
std::array<uint, aod::cfmultset::NMultiplicityEstimators> multCutFormulaParamIndex;

struct Config {
bool mPairCuts = false;
Expand Down Expand Up @@ -229,7 +229,7 @@ struct CorrelationTask {
if (!cfgMultCutFormula.value.empty()) {
multCutFormula = std::make_unique<TFormula>("multCutFormula", cfgMultCutFormula.value.c_str());
std::fill_n(multCutFormulaParamIndex.begin(), std::size(multCutFormulaParamIndex), ~0u);
std::array<std::string, 4> pars = {"cFT0C", "mFV0A", "mPV", "mGlob"}; // must correspond the order of MultiplicityEstimators
std::array<std::string, aod::cfmultset::NMultiplicityEstimators> pars = {"cFT0C", "mFV0A", "mPV", "mGlob", "cFT0M"}; // must correspond the order of MultiplicityEstimators
for (uint i = 0, n = multCutFormula->GetNpar(); i < n; ++i) {
auto m = std::find(pars.begin(), pars.end(), multCutFormula->GetParName(i));
if (m == pars.end()) {
Expand Down Expand Up @@ -462,7 +462,7 @@ struct CorrelationTask {
{
if (cfgMultCutFormula.value.empty())
return true;
for (uint i = 0; i < 4; ++i) {
for (uint i = 0; i < aod::cfmultset::NMultiplicityEstimators; ++i) {
if ((cfgMultCorrelationsMask.value & (1u << i)) == 0 || multCutFormulaParamIndex[i] == ~0u)
continue;
auto estIndex = std::popcount(cfgMultCorrelationsMask.value & ((1u << i) - 1));
Expand Down
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