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[PWGCF] Update MC process functions #10479

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0a49ff9
Improve MC process functions
cnkoster Mar 13, 2025
26344cb
Remove commented out code
cnkoster Mar 13, 2025
5e13823
Change tracktables
cnkoster Mar 13, 2025
93b641f
Remove double statements
cnkoster Mar 13, 2025
99447db
Please consider the following formatting changes
alibuild Mar 13, 2025
e434e29
Merge pull request #40 from alibuild/alibot-cleanup-10479
cnkoster Mar 13, 2025
ba25010
O2 linter
cnkoster Mar 13, 2025
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241 changes: 183 additions & 58 deletions PWGCF/Flow/Tasks/flowSP.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@
#include "Framework/ASoAHelpers.h"
#include "Framework/RunningWorkflowInfo.h"
#include "Framework/HistogramRegistry.h"
#include "Framework/O2DatabasePDGPlugin.h"

#include "Common/DataModel/EventSelection.h"
#include "Common/Core/TrackSelection.h"
Expand Down Expand Up @@ -92,7 +93,6 @@ struct FlowSP {
O2_DEFINE_CONFIGURABLE(cfgTVXinTRD, bool, false, "Use kTVXinTRD (reject TRD triggered events)");
O2_DEFINE_CONFIGURABLE(cfgIsVertexITSTPC, bool, true, "Selects collisions with at least one ITS-TPC track");
O2_DEFINE_CONFIGURABLE(cfgIsGoodITSLayersAll, bool, true, "Cut time intervals with dead ITS staves");
O2_DEFINE_CONFIGURABLE(cfgEvSelsMCReco, bool, true, "Apply event selections in MC Reco");
// harmonics for v coefficients
O2_DEFINE_CONFIGURABLE(cfgHarm, int, 1, "Flow harmonic n for ux and uy: (Cos(n*phi), Sin(n*phi))");
O2_DEFINE_CONFIGURABLE(cfgHarmMixed, int, 2, "Flow harmonic n for ux and uy in mixed harmonics (MH): (Cos(n*phi), Sin(n*phi))");
Expand Down Expand Up @@ -123,11 +123,26 @@ struct FlowSP {

Filter collisionFilter = nabs(aod::collision::posZ) < cfgVtxZ;
Filter trackFilter = nabs(aod::track::eta) < cfgEta && aod::track::pt > cfgPtmin&& aod::track::pt < cfgPtmax && ((requireGlobalTrackInFilter()) || (aod::track::isGlobalTrackSDD == (uint8_t) true)) && nabs(aod::track::dcaXY) < cfgDCAxy&& nabs(aod::track::dcaZ) < cfgDCAz;
Filter trackFilterMC = nabs(aod::mcparticle::eta) < cfgEta && aod::mcparticle::pt > cfgPtmin&& aod::mcparticle::pt < cfgPtmax;
using UsedCollisions = soa::Filtered<soa::Join<aod::Collisions, aod::EvSels, aod::Mults, aod::CentFT0Cs, aod::CentFT0CVariant1s, aod::CentFT0Ms, aod::CentFV0As, aod::CentNGlobals, aod::SPTableZDC>>;
using UsedTracks = soa::Filtered<soa::Join<aod::Tracks, aod::TracksExtra, aod::TrackSelection, aod::TracksDCA>>;

// For MC Reco and Gen
using CCs = soa::Filtered<soa::Join<aod::Collisions, aod::EvSels, aod::Mults, aod::CentFT0Cs, aod::CentFT0CVariant1s, aod::CentFT0Ms, aod::CentFV0As, aod::CentNGlobals, aod::McCollisionLabels>>;
using CC = CCs::iterator;
using TCs = soa::Join<aod::Tracks, aod::TracksExtra, aod::TrackSelection, aod::TracksDCA, aod::McTrackLabels>;
using FilteredTCs = soa::Filtered<soa::Join<aod::Tracks, aod::TracksExtra, aod::TrackSelection, aod::TracksDCA, aod::McTrackLabels>>;
using TC = TCs::iterator;
using MCs = soa::Filtered<aod::McParticles>;

Preslice<aod::McParticles> partPerMcCollision = aod::mcparticle::mcCollisionId;
PresliceUnsorted<CCs> colPerMcCollision = aod::mccollisionlabel::mcCollisionId;
PresliceUnsorted<TCs> trackPerMcParticle = aod::mctracklabel::mcParticleId;
Preslice<TCs> trackPerCollision = aod::track::collisionId;

// Connect to ccdb
Service<ccdb::BasicCCDBManager> ccdb;
Service<o2::framework::O2DatabasePDG> pdg;

// struct to hold the correction histos/
struct Config {
Expand Down Expand Up @@ -176,8 +191,12 @@ struct FlowSP {
nEventSelections
};

enum TrackSelections {
trackSel_FilteredTracks,
enum TrackSelectionsUnFiltered {
trackSel_Eta,
trackSel_Pt,
trackSel_DCAxy,
trackSel_DCAz,
trackSel_GlobalTracks,
trackSel_NCls,
trackSel_FshCls,
trackSel_TPCBoundary,
Expand Down Expand Up @@ -225,7 +244,7 @@ struct FlowSP {
fWeightsNEG->init(true, false);
}

if ((doprocessData || doprocessMCReco)) {
if (doprocessData || doprocessMCReco || doprocessMCGen) {
if (cfgFillQAHistos) {
registry.add("QA/after/hCent", "", {HistType::kTH1D, {axisCent}});
registry.add("QA/after/pt_phi", "", {HistType::kTH2D, {axisPt, axisPhiMod}});
Expand All @@ -245,19 +264,29 @@ struct FlowSP {
registry.add("QA/after/CentFT0C_vs_CentFV0A", " ; Cent FT0C (%); Cent FV0A (%) ", {HistType::kTH2D, {axisCent, axisCent}});
registry.add("QA/after/CentFT0C_vs_CentNGlobal", " ; Cent FT0C (%); Cent NGlobal (%) ", {HistType::kTH2D, {axisCent, axisCent}});

// track QA for pos, neg, incl
registry.add<TH1>("incl/QA/hPt", "", kTH1D, {axisPt});
registry.add<TH1>("incl/QA/hPhi", "", kTH1D, {axisPhi});
registry.add<TH1>("incl/QA/hPhiCorrected", "", kTH1D, {axisPhi});
registry.add<TH1>("incl/QA/hEta", "", kTH1D, {axisEta});
registry.add<TH3>("incl/QA/hPhi_Eta_vz", "", kTH3D, {axisPhi, axisEta, axisVz});
registry.add<TH2>("incl/QA/hDCAxy_pt", "", kTH2D, {axisPt, axisDCAxy});
registry.add<TH2>("incl/QA/hDCAz_pt", "", kTH2D, {axisPt, axisDCAz});
registry.add("incl/QA/hSharedClusters_pt", "", {HistType::kTH2D, {axisPt, axisShCl}});
registry.add("incl/QA/hCrossedRows_pt", "", {HistType::kTH2D, {axisPt, axisCl}});
if (doprocessData || doprocessMCReco) {
// track QA for pos, neg, incl
registry.add<TH1>("incl/QA/hPt", "", kTH1D, {axisPt});
registry.add<TH1>("incl/QA/hPhi", "", kTH1D, {axisPhi});
registry.add<TH1>("incl/QA/hPhiCorrected", "", kTH1D, {axisPhi});
registry.add<TH1>("incl/QA/hEta", "", kTH1D, {axisEta});
registry.add<TH3>("incl/QA/hPhi_Eta_vz", "", kTH3D, {axisPhi, axisEta, axisVz});
registry.add<TH2>("incl/QA/hDCAxy_pt", "", kTH2D, {axisPt, axisDCAxy});
registry.add<TH2>("incl/QA/hDCAz_pt", "", kTH2D, {axisPt, axisDCAz});
registry.add("incl/QA/hSharedClusters_pt", "", {HistType::kTH2D, {axisPt, axisShCl}});
registry.add("incl/QA/hCrossedRows_pt", "", {HistType::kTH2D, {axisPt, axisCl}});
}
}

if (doprocessMCReco) {
registry.add("trackMCReco/after/hIsPhysicalPrimary", "", {HistType::kTH1D, {{2, 0, 2}}});
registry.add("trackMCReco/hTrackSize_unFiltered", "", {HistType::kTH1D, {{100, 0, 20000}}});
registry.add("trackMCReco/hTrackSize_Filtered", "", {HistType::kTH1D, {{100, 0, 20000}}});
registry.get<TH1>(HIST("trackMCReco/after/hIsPhysicalPrimary"))->GetXaxis()->SetBinLabel(1, "Secondary");
registry.get<TH1>(HIST("trackMCReco/after/hIsPhysicalPrimary"))->GetXaxis()->SetBinLabel(2, "Primary");

// registry.add("trackMCReco/after/hPrimary_cent", "", {HistType::kTH1D, {{2,0,2}}});

registry.add("trackMCReco/after/hPt_inclusive", "", {HistType::kTH1D, {axisPt}});
registry.add("trackMCReco/after/hPt_positive", "", {HistType::kTH1D, {axisPt}});
registry.add("trackMCReco/after/hPt_negative", "", {HistType::kTH1D, {axisPt}});
Expand Down Expand Up @@ -366,9 +395,14 @@ struct FlowSP {
registry.addClone("incl/", "pos/");
registry.addClone("incl/", "neg/");
}
} else if (doprocessMCGen) {
registry.add("trackMCGen/before/pt_gen_incl", "", {HistType::kTH1D, {axisPt}});
registry.add("trackMCGen/before/phi_eta_vtxZ_gen", "", {HistType::kTH3D, {axisPhi, axisEta, axisVz}});
}

if (doprocessMCGen) {
registry.add("trackMCGen/nCollReconstructedPerMcCollision", "", {HistType::kTH1D, {{10, -5, 5}}});
registry.add("trackMCGen/before/incl/pt_gen", "", {HistType::kTH1D, {axisPt}});
registry.add("trackMCGen/before/incl/phi_eta_vtxZ_gen", "", {HistType::kTH3D, {axisPhi, axisEta, axisVz}});
registry.addClone("trackMCGen/before/incl/", "trackMCGen/before/pos/");
registry.addClone("trackMCGen/before/incl/", "trackMCGen/before/neg/");
registry.addClone("trackMCGen/before/", "trackMCGen/after/");
}

Expand All @@ -387,7 +421,11 @@ struct FlowSP {
registry.get<TH1>(HIST("hEventCount"))->GetXaxis()->SetBinLabel(evSel_isSelectedZDC + 1, "isSelected");

registry.add("hTrackCount", "Number of Tracks; Cut; #Tracks Passed Cut", {HistType::kTH1D, {{nTrackSelections, 0, nTrackSelections}}});
registry.get<TH1>(HIST("hTrackCount"))->GetXaxis()->SetBinLabel(trackSel_FilteredTracks + 1, "Filtered Track");
registry.get<TH1>(HIST("hTrackCount"))->GetXaxis()->SetBinLabel(trackSel_Eta + 1, "Eta");
registry.get<TH1>(HIST("hTrackCount"))->GetXaxis()->SetBinLabel(trackSel_Pt + 1, "Pt");
registry.get<TH1>(HIST("hTrackCount"))->GetXaxis()->SetBinLabel(trackSel_DCAxy + 1, "DCAxy");
registry.get<TH1>(HIST("hTrackCount"))->GetXaxis()->SetBinLabel(trackSel_DCAz + 1, "DCAz");
registry.get<TH1>(HIST("hTrackCount"))->GetXaxis()->SetBinLabel(trackSel_GlobalTracks + 1, "GlobalTracks");
registry.get<TH1>(HIST("hTrackCount"))->GetXaxis()->SetBinLabel(trackSel_NCls + 1, "nClusters TPC");
registry.get<TH1>(HIST("hTrackCount"))->GetXaxis()->SetBinLabel(trackSel_FshCls + 1, "Frac. sh. Cls TPC");
registry.get<TH1>(HIST("hTrackCount"))->GetXaxis()->SetBinLabel(trackSel_TPCBoundary + 1, "TPC Boundary");
Expand Down Expand Up @@ -605,6 +643,26 @@ struct FlowSP {
template <typename TrackObject>
bool trackSelected(TrackObject track, const int& field)
{
if (std::fabs(track.eta()) < cfgEta)
return false;
registry.fill(HIST("hTrackCount"), trackSel_Eta);

if (track.pt() < cfgPtmin || track.pt() > cfgPtmax)
return false;

registry.fill(HIST("hTrackCount"), trackSel_Pt);

if (track.dcaXY() > cfgDCAxy)
return false;

registry.fill(HIST("hTrackCount"), trackSel_DCAxy);

if (track.dcaZ() > cfgDCAz)
return false;

registry.fill(HIST("hTrackCount"), trackSel_DCAz);

// registry.fill(HIST("hTrackCount"), trackSel_GlobalTracks);

if (track.tpcNClsFound() < cfgNcls)
return false;
Expand Down Expand Up @@ -872,7 +930,7 @@ struct FlowSP {
if (cfgFillQAHistos)
registry.fill(HIST("QA/before/hPt_inclusive"), track.pt());

registry.fill(HIST("hTrackCount"), trackSel_FilteredTracks);
// registry.fill(HIST("hTrackCount"), trackSel_FilteredTracks);

float weff = 1., wacc = 1.;
float weffP = 1., waccP = 1.;
Expand Down Expand Up @@ -945,7 +1003,7 @@ struct FlowSP {
}
PROCESS_SWITCH(FlowSP, processData, "Process analysis for non-derived data", true);

void processMCReco(soa::Filtered<soa::Join<aod::Collisions, aod::EvSels, aod::Mults, aod::CentFT0Cs, aod::CentFT0CVariant1s, aod::CentFT0Ms, aod::CentFV0As, aod::CentNGlobals>>::iterator const& collision, aod::BCsWithTimestamps const&, soa::Filtered<soa::Join<aod::Tracks, aod::TracksExtra, aod::TrackSelection, aod::TracksDCA, aod::McTrackLabels>> const& tracks, aod::McParticles const&)
void processMCReco(CC const& collision, aod::BCsWithTimestamps const&, TCs const& tracks, FilteredTCs const& filteredTracks, aod::McParticles const&)
{
auto bc = collision.template bc_as<aod::BCsWithTimestamps>();
auto field = (cfgMagField == 99999) ? getMagneticField(bc.timestamp()) : cfgMagField;
Expand All @@ -964,21 +1022,23 @@ struct FlowSP {
if (cfgFillQAHistos)
fillEventQA<kBefore>(collision, tracks);

if (cfgEvSelsMCReco && !eventSelected(collision, tracks.size(), centrality))
if (!eventSelected(collision, filteredTracks.size(), centrality))
return;

if (!collision.has_mcCollision()) {
LOGF(info, "No mccollision found for this collision");
return;
}

if (cfgFillQAHistos)
fillEventQA<kAfter>(collision, tracks);

for (const auto& track : tracks) {
// LOGF(info, "Size of tracks: %i", tracks.size());
registry.fill(HIST("trackMCReco/hTrackSize_unFiltered"), tracks.size());
registry.fill(HIST("trackMCReco/hTrackSize_Filtered"), Filteredtracks.size());

for (const auto& track : filteredTracks) {
auto mcParticle = track.mcParticle();
if (!mcParticle.isPhysicalPrimary())
continue;

if (mcParticle.eta() < -cfgEta || mcParticle.eta() > cfgEta || mcParticle.pt() < cfgPtmin || mcParticle.pt() > cfgPtmax || track.tpcNClsFound() < cfgNcls)
continue;

if (track.sign() == 0.0)
continue;
bool pos = (track.sign() > 0) ? true : false;
Expand All @@ -990,6 +1050,13 @@ struct FlowSP {
registry.fill(HIST("trackMCReco/before/hPt_negative"), track.pt());
}

if (!mcParticle.isPhysicalPrimary()) {
registry.fill(HIST("trackMCReco/before/hIsPhysicalPrimary"), 0);
continue;
} else {
registry.fill(HIST("trackMCReco/before/hIsPhysicalPrimary"), 1);
}

if (!trackSelected(track, field))
continue;

Expand All @@ -1007,44 +1074,102 @@ struct FlowSP {
}
PROCESS_SWITCH(FlowSP, processMCReco, "Process analysis for MC reconstructed events", false);

Filter mcCollFilter = nabs(aod::mccollision::posZ) < cfgVtxZ;
void processMCGen(soa::Filtered<aod::McCollisions>::iterator const& mcCollision, soa::SmallGroups<soa::Join<aod::McCollisionLabels, aod::Collisions, aod::CentFT0Cs, aod::CentFV0As, aod::CentFT0CVariant1s, aod::CentFT0Ms, aod::CentNGlobals>> const& collisions, aod::McParticles const& particles)
// Filter mcCollFilter = nabs(aod::mccollision::posZ) < cfgVtxZ;
void processMCGen(aod::McCollisions const& mcCollisions, CCs const& collisions, TCs const& tracks, FilteredTCs const& filteredTracks, MCs const& McParts)
{
if (collisions.size() != 1) { // check if MC collision is only reconstructed once! (https://indico.cern.ch/event/1425820/contributions/6170879/attachments/2947721/5180548/DDChinellato-O2AT4-HandsOn-03a.pdf)
return;
}
float centrality = -1;
for (const auto& collision : collisions) {
centrality = collision.centFT0C();
if (cfgFT0Cvariant1)
centrality = collision.centFT0CVariant1();
if (cfgFT0M)
centrality = collision.centFT0M();
if (cfgFV0A)
centrality = collision.centFV0A();
if (cfgNGlobal)
centrality = collision.centNGlobal();
}
// LOGF(info, "Size of mccollisions: %i", mcCollisions.size());

if (particles.size() < 1)
return;
if (centrality < cfgCentMin || centrality > cfgCentMax)
return;
for (const auto& mcCollision : mcCollisions) {
float centrality = -1;
bool colSelected = true;

float vtxz = mcCollision.posZ();
// get McParticles which belong to mccollision
auto partSlice = McParts.sliceBy(partPerMcCollision, mcCollision.globalIndex());

for (const auto& particle : particles) {
if (!particle.isPhysicalPrimary())
// get reconstructed collision which belongs to mccollision
auto colSlice = collisions.sliceBy(colPerMcCollision, mcCollision.globalIndex());
registry.fill(HIST("trackMCGen/nCollReconstructedPerMcCollision"), colSlice.size());
if (colSlice.size() != 1) { // check if MC collision is only reconstructed once! (https://indico.cern.ch/event/1425820/contributions/6170879/attachments/2947721/5180548/DDChinellato-O2AT4-HandsOn-03a.pdf)
continue;
}

registry.fill(HIST("trackMCGen/before/pt_gen_incl"), particle.pt());
registry.fill(HIST("trackMCGen/before/phi_eta_vtxZ_gen"), particle.phi(), particle.eta(), vtxz);
for (const auto& col : colSlice) {
// get tracks that belong to reconstructed collision
auto trackSlice = tracks.sliceBy(trackPerCollision, col.globalIndex());

auto filteredTrackSlice = filteredTracks.sliceBy(trackPerCollision, col.globalIndex());

centrality = col.centFT0C();
if (cfgFT0Cvariant1)
centrality = col.centFT0CVariant1();
if (cfgFT0M)
centrality = col.centFT0M();
if (cfgFV0A)
centrality = col.centFV0A();
if (cfgNGlobal)
centrality = col.centNGlobal();
fillEventQA<kBefore>(col, trackSlice);
if (trackSlice.size() < 1) {
colSelected = false;
continue;
}
if (!eventSelected(col, filteredTrackSlice.size(), centrality)) {
colSelected = false;
continue;
}
fillEventQA<kAfter>(col, trackSlice);

if (particle.eta() < -cfgEta || particle.eta() > cfgEta || particle.pt() < cfgPtmin || particle.pt() > cfgPtmax)
continue;
if (!colSelected)
continue;

float vtxz = mcCollision.posZ();

for (const auto& particle : partSlice) {
if (!particle.isPhysicalPrimary())
continue;

int charge = 0;
;

auto pdgCode = particle.pdgCode();
auto pdgInfo = pdg->GetParticle(pdgCode);
if (pdgInfo != nullptr) {
charge = pdgInfo->Charge();
}

registry.fill(HIST("trackMCGen/after/pt_gen_incl"), particle.pt());
registry.fill(HIST("trackMCGen/after/phi_eta_vtxZ_gen"), particle.phi(), particle.eta(), vtxz);
if (std::fabs(charge) < 1)
continue;

LOGF(info, "Charge: %i \t pdgCode %d", charge, pdgCode);

bool pos = (charge > 0) ? true : false;

registry.fill(HIST("trackMCGen/before/incl/pt_gen"), particle.pt());
registry.fill(HIST("trackMCGen/before/incl/phi_eta_vtxZ_gen"), particle.phi(), particle.eta(), vtxz);

if (pos) {
registry.fill(HIST("trackMCGen/before/pos/pt_gen"), particle.pt());
registry.fill(HIST("trackMCGen/before/pos/phi_eta_vtxZ_gen"), particle.phi(), particle.eta(), vtxz);
} else {
registry.fill(HIST("trackMCGen/before/neg/pt_gen"), particle.pt());
registry.fill(HIST("trackMCGen/before/neg/phi_eta_vtxZ_gen"), particle.phi(), particle.eta(), vtxz);
}

if (particle.eta() < -cfgEta || particle.eta() > cfgEta || particle.pt() < cfgPtmin || particle.pt() > cfgPtmax)
continue;

registry.fill(HIST("trackMCGen/after/incl/pt_gen"), particle.pt());
registry.fill(HIST("trackMCGen/after/incl/phi_eta_vtxZ_gen"), particle.phi(), particle.eta(), vtxz);

if (pos) {
registry.fill(HIST("trackMCGen/after/pos/pt_gen"), particle.pt());
registry.fill(HIST("trackMCGen/after/pos/phi_eta_vtxZ_gen"), particle.phi(), particle.eta(), vtxz);
} else {
registry.fill(HIST("trackMCGen/after/neg/pt_gen"), particle.pt());
registry.fill(HIST("trackMCGen/after/neg/phi_eta_vtxZ_gen"), particle.phi(), particle.eta(), vtxz);
}
}
}
}
}
PROCESS_SWITCH(FlowSP, processMCGen, "Process analysis for MC generated events", false);
Expand Down
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