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[PWGCF] Add high-multiplicity triggers to CF table producer #18124

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Merged
jgrosseo merged 3 commits into from
Oct 1, 2026
Merged

[PWGCF] Add high-multiplicity triggers to CF table producer #18124

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e1a65c6
add HM triggers to CF table producer
EmilGorm Sep 30, 2026
e10f043
move zorroMask operations to once per run change
EmilGorm Oct 1, 2026
51de10f
format
EmilGorm Oct 1, 2026
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2 changes: 1 addition & 1 deletion PWGCF/TableProducer/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@

o2physics_add_dpl_workflow(filter-correlations
SOURCES filterCorrelations.cxx
PUBLIC_LINK_LIBRARIES O2::Framework O2Physics::AnalysisCore O2Physics::PWGCFCore
PUBLIC_LINK_LIBRARIES O2::Framework O2Physics::AnalysisCore O2Physics::PWGCFCore O2Physics::EventFilteringUtils
COMPONENT_NAME Analysis)

o2physics_add_dpl_workflow(filter-correlations-2prong
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37 changes: 31 additions & 6 deletions PWGCF/TableProducer/filterCorrelations.cxx
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Expand Up @@ -15,6 +15,7 @@
#include "Common/CCDB/EventSelectionParams.h"
#include "Common/CCDB/TriggerAliases.h"
#include "Common/Core/TableHelper.h"
#include "Common/Core/Zorro.h"
#include "Common/DataModel/Centrality.h"
#include "Common/DataModel/EventSelection.h"
#include "Common/DataModel/Multiplicity.h"
Expand Down Expand Up @@ -92,7 +93,7 @@ struct FilterCF {
O2_DEFINE_CONFIGURABLE(cfgCutMCPt, float, 0.5f, "Minimal pT for particles");
O2_DEFINE_CONFIGURABLE(cfgCutMCEta, float, 0.8f, "Eta range for particles");
O2_DEFINE_CONFIGURABLE(cfgVerbosity, int, 1, "Verbosity level (0 = major, 1 = per collision)");
O2_DEFINE_CONFIGURABLE(cfgTrigger, int, 7, "Trigger choice: (0 = none, 7 = sel7, 8 = sel8, 9 = sel8 + kNoSameBunchPileup + kIsGoodZvtxFT0vsPV, 10 = sel8 before April, 2024, 11 = sel8 for MC, 12 = sel8 with low occupancy cut, 13 = sel8 + kNoSameBunchPileup + kIsGoodITSLayersAll -- for OO/NeNe) ");
O2_DEFINE_CONFIGURABLE(cfgTrigger, int, 7, "Trigger choice: (0 = none, 7 = sel7, 8 = sel8, 9 = sel8 + kNoSameBunchPileup + kIsGoodZvtxFT0vsPV, 10 = sel8 before April, 2024, 11 = sel8 for MC, 12 = sel8 with low occupancy cut, 13 = sel8 + kNoSameBunchPileup + kIsGoodITSLayersAll -- for OO/NeNe, 14 = fHighTrackMult (pp), 15 = fHighMultFv0 (pp), 16 = fHighTrackMult || fHighMultFv0 (pp))");
O2_DEFINE_CONFIGURABLE(cfgMinOcc, int, 0, "minimum occupancy selection");
O2_DEFINE_CONFIGURABLE(cfgMaxOcc, int, 3000, "maximum occupancy selection");
O2_DEFINE_CONFIGURABLE(cfgCollisionFlags, uint16_t, aod::collision::CollisionFlagsRun2::Run2VertexerTracks, "Request collision flags if non-zero (0 = off, 1 = Run2VertexerTracks)");
Expand Down Expand Up @@ -135,6 +136,9 @@ struct FilterCF {

HistogramRegistry registrytrackQA{"TrackQA", {}, OutputObjHandlingPolicy::AnalysisObject, true, true};

Zorro zorro;
int zorroRun = 0;

Produces<aod::CFCollisions> outputCollisions;
Produces<aod::CFCollisionsExtra> outputCollisionsExtra;
Produces<aod::CFTracks> outputTracks;
Expand Down Expand Up @@ -194,12 +198,13 @@ struct FilterCF {
return;
}
localMultiplicityEfficiency.reset(dynamic_cast<THn*>(efficiency->Clone()));
} else {
ccdb->setURL("http://alice-ccdb.cern.ch");
ccdb->setCaching(true);
ccdb->setLocalObjectValidityChecking();
}
}
if ((cfgTrigger >= 14 && cfgTrigger <= 16) || (!cfgEfficiencyMultiplicity.value.empty() && cfgLocalEfficiency == 0)) { // o2-linter: disable=magic-number (documented legacy trigger-selection code)
ccdb->setURL("http://alice-ccdb.cern.ch");
ccdb->setCaching(true);
ccdb->setLocalObjectValidityChecking();
}
if (doprocessTrackQA) {
registrytrackQA.add("zvtx", "Z Vertex position; posz (cm); Events", HistType::kTH1F, {{100, -12, 12}});
registrytrackQA.add("eta", "eta distribution; eta; arb. units", HistType::kTH1F, {{100, -2, 2}});
Expand Down Expand Up @@ -249,6 +254,26 @@ struct FilterCF {
if (cfgTrigger == 13) { // relevant for pO/OO/NeNe, recommended by Physics Board on 27.01.2026; o2-linter: disable=magic-number (documented legacy trigger-selection code)
return isMultSelected && collision.sel8() && collision.selection_bit(aod::evsel::kNoSameBunchPileup) && collision.selection_bit(aod::evsel::kIsGoodZvtxFT0vsPV);
}

// Zorro-based trigger selection
if (cfgTrigger >= 14 && cfgTrigger <= 16) { // o2-linter: disable=magic-number (documented legacy trigger-selection code)
auto bc = collision.template bc_as<aod::BCsWithTimestamps>();
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EmilGorm marked this conversation as resolved.
if (zorroRun != bc.runNumber()) {
std::string zorroMask;
if (cfgTrigger == 14) { // High-multiplicity pp trigger based on tracks (PWGMM/multFilter.cxx); o2-linter: disable=magic-number (documented legacy trigger-selection code)
zorroMask = "fHighTrackMult";
}
if (cfgTrigger == 15) { // High-multiplicity pp trigger based on FV0 amplitude (PWGMM/multFilter.cxx); o2-linter: disable=magic-number (documented legacy trigger-selection code)
zorroMask = "fHighMultFv0";
}
if (cfgTrigger == 16) { // High-multiplicity pp trigger based on tracks or FV0 amplitude (PWGMM/multFilter.cxx); o2-linter: disable=magic-number (documented legacy trigger-selection code)
zorroMask = "fHighTrackMult,fHighMultFv0";
}
zorro.initCCDB(ccdb.service, bc.runNumber(), bc.timestamp(), zorroMask);
zorroRun = bc.runNumber();
}
return isMultSelected && zorro.isSelected(bc.globalBC(), 0); // Set BC threshold to zero to not admit nearby low-multiplicity collisions
}
return false;
}

Expand Down Expand Up @@ -488,7 +513,7 @@ struct FilterCF {
}
PROCESS_SWITCH(FilterCF, processDataMults, "Process data with multiplicity sets", false);

void processTrackQA(soa::Filtered<soa::Join<aod::Collisions, aod::EvSels, aod::CFMultiplicities>>::iterator const& collision, soa::Filtered<soa::Join<aod::Tracks, aod::TracksExtra, aod::TrackSelection, aod::TracksDCA>> const& tracks)
void processTrackQA(soa::Filtered<soa::Join<aod::Collisions, aod::EvSels, aod::CFMultiplicities>>::iterator const& collision, aod::BCsWithTimestamps const&, soa::Filtered<soa::Join<aod::Tracks, aod::TracksExtra, aod::TrackSelection, aod::TracksDCA>> const& tracks)
{
if (!keepCollision(collision)) {
return;
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