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dsekihat merged 1 commit into from
Jul 10, 2025
+86 −23
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[PWGEM/Dilepton] add mc label of MFTTracks #11993

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11 changes: 11 additions & 0 deletions PWGEM/Dilepton/DataModel/dileptonTables.h
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
// Copyright 2019-2020 CERN and copyright holders of ALICE O2.

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[doc/file] 

Provide mandatory file documentation.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
Expand All @@ -8,7 +8,7 @@
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.

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[doc/file] 

Documentation for \author is missing, incorrect or misplaced.

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[doc/file] 

Documentation for \brief is missing, incorrect or misplaced.

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[doc/file] 

Documentation for \file is missing, incorrect or misplaced.
#include "Common/Core/RecoDecay.h"
#include "Common/DataModel/Centrality.h"
#include "Common/DataModel/EventSelection.h"
Expand Down Expand Up @@ -377,6 +377,17 @@
emprimarymuonmclabel::EMMCParticleId, emprimarymuonmclabel::McMask);
using EMPrimaryMuonMCLabel = EMPrimaryMuonMCLabels::iterator;

namespace emmftmclabel
{
DECLARE_SOA_INDEX_COLUMN(EMMCParticle, emmcparticle); //!
DECLARE_SOA_COLUMN(McMask, mcMask, uint16_t);
} // namespace emmftmclabel

// NOTE: MC labels. This table has one entry for each reconstructed track (joinable with EMPrimaryMuons table)
DECLARE_SOA_TABLE(EMMFTMCLabels, "AOD", "EMMFTMCLABEL", //!
emmftmclabel::EMMCParticleId, emmftmclabel::McMask);
using EMMFTMCLabel = EMMFTMCLabels::iterator;

namespace emprimaryelectron
{
DECLARE_SOA_INDEX_COLUMN(EMEvent, emevent); //!
Expand All @@ -398,10 +409,10 @@
DECLARE_SOA_DYNAMIC_COLUMN(Px, px, [](float pt, float phi) -> float { return pt * std::cos(phi); });
DECLARE_SOA_DYNAMIC_COLUMN(Py, py, [](float pt, float phi) -> float { return pt * std::sin(phi); });
DECLARE_SOA_DYNAMIC_COLUMN(Pz, pz, [](float pt, float eta) -> float { return pt * std::sinh(eta); });
DECLARE_SOA_DYNAMIC_COLUMN(Theta, theta, [](float tgl) -> float { return M_PI_2 - std::atan(tgl); });

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[external-pi] 

Use the PI constant (and its multiples and fractions) defined in o2::constants::math.
DECLARE_SOA_DYNAMIC_COLUMN(MeanClusterSizeITS, meanClusterSizeITS, [](uint32_t itsClusterSizes) -> float {
int total_cluster_size = 0, nl = 0;
for (unsigned int layer = 0; layer < 7; layer++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
int cluster_size_per_layer = (itsClusterSizes >> (layer * 4)) & 0xf;
if (cluster_size_per_layer > 0) {
nl++;
Expand All @@ -416,7 +427,7 @@
});
DECLARE_SOA_DYNAMIC_COLUMN(MeanClusterSizeITSib, meanClusterSizeITSib, [](uint32_t itsClusterSizes) -> float {
int total_cluster_size = 0, nl = 0;
for (unsigned int layer = 0; layer < 3; layer++) {

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[magic-number] 

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int cluster_size_per_layer = (itsClusterSizes >> (layer * 4)) & 0xf;
if (cluster_size_per_layer > 0) {
nl++;
Expand All @@ -431,7 +442,7 @@
});
DECLARE_SOA_DYNAMIC_COLUMN(MeanClusterSizeITSob, meanClusterSizeITSob, [](uint32_t itsClusterSizes) -> float {
int total_cluster_size = 0, nl = 0;
for (unsigned int layer = 3; layer < 7; layer++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
int cluster_size_per_layer = (itsClusterSizes >> (layer * 4)) & 0xf;
if (cluster_size_per_layer > 0) {
nl++;
Expand Down Expand Up @@ -603,7 +614,7 @@
DECLARE_SOA_DYNAMIC_COLUMN(NClustersMFT, nClustersMFT, //! Number of MFT clusters
[](uint64_t mftClusterSizesAndTrackFlags) -> uint8_t {
uint8_t nClusters = 0;
for (int layer = 0; layer < 10; layer++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
if ((mftClusterSizesAndTrackFlags >> (layer * 6)) & 0x3F) {
nClusters++;
}
Expand All @@ -613,7 +624,7 @@
DECLARE_SOA_DYNAMIC_COLUMN(MFTClusterMap, mftClusterMap, //! MFT cluster map, one bit per a layer, starting from the innermost
[](uint64_t mftClusterSizesAndTrackFlags) -> uint16_t {
uint16_t clmap = 0;
for (unsigned int layer = 0; layer < 10; layer++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
if ((mftClusterSizesAndTrackFlags >> (layer * 6)) & 0x3f) {
clmap |= (1 << layer);
}
Expand Down
98 changes: 75 additions & 23 deletions PWGEM/Dilepton/TableProducer/associateMCinfoDilepton.cxx
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Expand Up @@ -14,19 +14,21 @@
// This code produces reduced events for photon analyses.
// Please write to: daiki.sekihata@cern.ch

#include <map>
#include <vector>
#include <iostream>
#include "PWGEM/Dilepton/DataModel/dileptonTables.h"
#include "PWGEM/PhotonMeson/DataModel/gammaTables.h"

#include "Common/Core/TableHelper.h"

#include <random>
#include "Framework/runDataProcessing.h"
#include "Framework/AnalysisTask.h"
#include "Framework/AnalysisDataModel.h"
#include "Framework/ASoAHelpers.h"
#include "Framework/AnalysisDataModel.h"
#include "Framework/AnalysisTask.h"
#include "Framework/runDataProcessing.h"
#include "ReconstructionDataFormats/Track.h"
#include "Common/Core/TableHelper.h"
#include "PWGEM/Dilepton/DataModel/dileptonTables.h"
#include "PWGEM/PhotonMeson/DataModel/gammaTables.h"

#include <iostream>
#include <map>
#include <random>
#include <vector>

using namespace o2;
using namespace o2::framework;
Expand All @@ -43,6 +45,7 @@ struct AssociateMCInfoDilepton {
using MyCollisionsMC = soa::Join<aod::Collisions, aod::McCollisionLabels, aod::EvSels, aod::EMEvSels>;
using TracksMC = soa::Join<aod::TracksIU, aod::McTrackLabels>;
using FwdTracksMC = soa::Join<aod::FwdTracks, aod::McFwdTrackLabels>;
using MFTTracksMC = soa::Join<aod::MFTTracks, aod::McMFTTrackLabels>;

Produces<o2::aod::EMMCEvents> mcevents;
Produces<o2::aod::EMMCEventLabels> mceventlabels;
Expand All @@ -51,6 +54,7 @@ struct AssociateMCInfoDilepton {
Produces<o2::aod::V0LegMCLabels> v0legmclabels;
Produces<o2::aod::EMPrimaryElectronMCLabels> emprimaryelectronmclabels;
Produces<o2::aod::EMPrimaryMuonMCLabels> emprimarymuonmclabels;
Produces<o2::aod::EMMFTMCLabels> emmftmclabels;
Produces<o2::aod::EMDummyDatas> emdummydata;

Configurable<int> n_dummy_loop{"n_dummy_loop", 0, "for loop runs over n times"};
Expand Down Expand Up @@ -135,8 +139,8 @@ struct AssociateMCInfoDilepton {
Partition<aod::McParticles> mcmuons = nabs(o2::aod::mcparticle::pdgCode) == 13 && min_eta_gen_primary_fwd < o2::aod::mcparticle::eta && o2::aod::mcparticle::eta < max_eta_gen_primary_fwd;
Partition<aod::McParticles> mcvectormesons = o2::aod::mcparticle::pdgCode == 223 || o2::aod::mcparticle::pdgCode == 333;

template <uint8_t system, typename TTracks, typename TFwdTracks, typename TPCMs, typename TPCMLegs, typename TEMPrimaryElectrons, typename TEMPrimaryMuons>
void skimmingMC(MyCollisionsMC const& collisions, aod::BCs const&, aod::McCollisions const& mcCollisions, aod::McParticles const& mcTracks, TTracks const& o2tracks, TFwdTracks const& o2fwdtracks, TPCMs const& v0photons, TPCMLegs const& /*v0legs*/, TEMPrimaryElectrons const& emprimaryelectrons, TEMPrimaryMuons const& emprimarymuons)
template <uint8_t system, typename TTracks, typename TFwdTracks, typename TMFTTracks, typename TPCMs, typename TPCMLegs, typename TEMPrimaryElectrons, typename TEMPrimaryMuons>
void skimmingMC(MyCollisionsMC const& collisions, aod::BCs const&, aod::McCollisions const& mcCollisions, aod::McParticles const& mcTracks, TTracks const& o2tracks, TFwdTracks const& o2fwdtracks, TMFTTracks const&, TPCMs const& v0photons, TPCMLegs const&, TEMPrimaryElectrons const& emprimaryelectrons, TEMPrimaryMuons const& emprimarymuons)
{
// temporary variables used for the indexing of the skimmed MC stack
std::map<uint64_t, int> fNewLabels;
Expand Down Expand Up @@ -358,8 +362,8 @@ struct AssociateMCInfoDilepton {
continue;
}

auto ele = v0.template negTrack_as<aod::V0Legs>();
auto pos = v0.template posTrack_as<aod::V0Legs>();
auto ele = v0.template negTrack_as<TPCMLegs>();
auto pos = v0.template posTrack_as<TPCMLegs>();

auto o2track_ele = o2tracks.iteratorAt(ele.trackId());
auto o2track_pos = o2tracks.iteratorAt(pos.trackId());
Expand Down Expand Up @@ -521,6 +525,54 @@ struct AssociateMCInfoDilepton {
}
} // end of mother chain loop

// mc label for tracks registered in MFT in global muons
if (o2track.matchMFTTrackId() > -1) {
const auto& o2mfttrack = o2track.template matchMFTTrack_as<TMFTTracks>();
if (!o2mfttrack.has_mcParticle()) {
emmftmclabels(-1, 0);
break;
}

const auto& mco2mfttrack = o2mfttrack.template mcParticle_as<aod::McParticles>();
if (!(fNewLabels.find(mco2mfttrack.globalIndex()) != fNewLabels.end())) {
fNewLabels[mco2mfttrack.globalIndex()] = fCounters[0];
fNewLabelsReversed[fCounters[0]] = mco2mfttrack.globalIndex();
// fMCFlags[mco2mfttrack.globalIndex()] = mcflags;
fEventIdx[mco2mfttrack.globalIndex()] = fEventLabels.find(mco2mfttrack.mcCollisionId())->second;
fCounters[0]++;
}
emmftmclabels(fNewLabels.find(mco2mfttrack.index())->second, o2track.mcMask());

// Next, store mother-chain of this reconstructed track.
int motherid = -999; // first mother index
if (mctrack.has_mothers()) {
motherid = mctrack.mothersIds()[0]; // first mother index
}
while (motherid > -1) {
if (motherid < mcTracks.size()) { // protect against bad mother indices. why is this needed?
auto mp = mcTracks.iteratorAt(motherid);

// if the MC truth particle corresponding to this reconstructed track which is not already written, add it to the skimmed MC stack
if (!(fNewLabels.find(mp.globalIndex()) != fNewLabels.end())) {
fNewLabels[mp.globalIndex()] = fCounters[0];
fNewLabelsReversed[fCounters[0]] = mp.globalIndex();
// fMCFlags[mp.globalIndex()] = mcflags;
fEventIdx[mp.globalIndex()] = fEventLabels.find(mp.mcCollisionId())->second;
fCounters[0]++;
}

if (mp.has_mothers()) {
motherid = mp.mothersIds()[0]; // first mother index
} else {
motherid = -999;
}
} else {
motherid = -999;
}
} // end of mother chain loop
} else {
emmftmclabels(-1, 0);
}
} // end of em primary muon loop
}

Expand Down Expand Up @@ -612,36 +664,36 @@ struct AssociateMCInfoDilepton {
void processMC_Electron(MyCollisionsMC const& collisions, aod::BCs const& bcs, aod::McCollisions const& mccollisions, aod::McParticles const& mcTracks, TracksMC const& o2tracks, aod::EMPrimaryElectrons const& emprimaryelectrons)
{
const uint8_t sysflag = kElectron;
skimmingMC<sysflag>(collisions, bcs, mccollisions, mcTracks, o2tracks, nullptr, nullptr, nullptr, emprimaryelectrons, nullptr);
skimmingMC<sysflag>(collisions, bcs, mccollisions, mcTracks, o2tracks, nullptr, nullptr, nullptr, nullptr, emprimaryelectrons, nullptr);
}

void processMC_FwdMuon(MyCollisionsMC const& collisions, aod::BCs const& bcs, aod::McCollisions const& mccollisions, aod::McParticles const& mcTracks, FwdTracksMC const& o2fwdtracks, aod::EMPrimaryMuons const& emprimarymuons)
void processMC_FwdMuon(MyCollisionsMC const& collisions, aod::BCs const& bcs, aod::McCollisions const& mccollisions, aod::McParticles const& mcTracks, FwdTracksMC const& o2fwdtracks, MFTTracksMC const& o2mfttracks, aod::EMPrimaryMuons const& emprimarymuons)
{
const uint8_t sysflag = kFwdMuon;
skimmingMC<sysflag>(collisions, bcs, mccollisions, mcTracks, nullptr, o2fwdtracks, nullptr, nullptr, nullptr, emprimarymuons);
skimmingMC<sysflag>(collisions, bcs, mccollisions, mcTracks, nullptr, o2fwdtracks, o2mfttracks, nullptr, nullptr, nullptr, emprimarymuons);
}

void processMC_Electron_FwdMuon(MyCollisionsMC const& collisions, aod::BCs const& bcs, aod::McCollisions const& mccollisions, aod::McParticles const& mcTracks, TracksMC const& o2tracks, FwdTracksMC const& o2fwdtracks, aod::EMPrimaryElectrons const& emprimaryelectrons, aod::EMPrimaryMuons const& emprimarymuons)
void processMC_Electron_FwdMuon(MyCollisionsMC const& collisions, aod::BCs const& bcs, aod::McCollisions const& mccollisions, aod::McParticles const& mcTracks, TracksMC const& o2tracks, FwdTracksMC const& o2fwdtracks, MFTTracksMC const& o2mfttracks, aod::EMPrimaryElectrons const& emprimaryelectrons, aod::EMPrimaryMuons const& emprimarymuons)
{
const uint8_t sysflag = kElectron | kFwdMuon;
skimmingMC<sysflag>(collisions, bcs, mccollisions, mcTracks, o2tracks, o2fwdtracks, nullptr, nullptr, emprimaryelectrons, emprimarymuons);
skimmingMC<sysflag>(collisions, bcs, mccollisions, mcTracks, o2tracks, o2fwdtracks, o2mfttracks, nullptr, nullptr, emprimaryelectrons, emprimarymuons);
}

void processMC_Electron_FwdMuon_PCM(MyCollisionsMC const& collisions, aod::BCs const& bcs, aod::McCollisions const& mccollisions, aod::McParticles const& mcTracks, TracksMC const& o2tracks, FwdTracksMC const& o2fwdtracks, aod::V0PhotonsKF const& v0photons, aod::V0Legs const& v0legs, aod::EMPrimaryElectrons const& emprimaryelectrons, aod::EMPrimaryMuons const& emprimarymuons)
void processMC_Electron_FwdMuon_PCM(MyCollisionsMC const& collisions, aod::BCs const& bcs, aod::McCollisions const& mccollisions, aod::McParticles const& mcTracks, TracksMC const& o2tracks, FwdTracksMC const& o2fwdtracks, MFTTracksMC const& o2mfttracks, aod::V0PhotonsKF const& v0photons, aod::V0Legs const& v0legs, aod::EMPrimaryElectrons const& emprimaryelectrons, aod::EMPrimaryMuons const& emprimarymuons)
{
const uint8_t sysflag = kPCM | kElectron | kFwdMuon;
skimmingMC<sysflag>(collisions, bcs, mccollisions, mcTracks, o2tracks, o2fwdtracks, v0photons, v0legs, emprimaryelectrons, emprimarymuons);
skimmingMC<sysflag>(collisions, bcs, mccollisions, mcTracks, o2tracks, o2fwdtracks, o2mfttracks, v0photons, v0legs, emprimaryelectrons, emprimarymuons);
}

void processMC_Electron_PCM(MyCollisionsMC const& collisions, aod::BCs const& bcs, aod::McCollisions const& mccollisions, aod::McParticles const& mcTracks, TracksMC const& o2tracks, aod::V0PhotonsKF const& v0photons, aod::V0Legs const& v0legs, aod::EMPrimaryElectrons const& emprimaryelectrons)
{
const uint8_t sysflag = kPCM | kElectron;
skimmingMC<sysflag>(collisions, bcs, mccollisions, mcTracks, o2tracks, nullptr, v0photons, v0legs, emprimaryelectrons, nullptr);
skimmingMC<sysflag>(collisions, bcs, mccollisions, mcTracks, o2tracks, nullptr, nullptr, v0photons, v0legs, emprimaryelectrons, nullptr);
}

void processMC_PCM(MyCollisionsMC const& collisions, aod::BCs const& bcs, aod::McCollisions const& mccollisions, aod::McParticles const& mcTracks, TracksMC const& o2tracks, aod::V0PhotonsKF const& v0photons, aod::V0Legs const& v0legs)
{
skimmingMC<kPCM>(collisions, bcs, mccollisions, mcTracks, o2tracks, nullptr, v0photons, v0legs, nullptr, nullptr);
skimmingMC<kPCM>(collisions, bcs, mccollisions, mcTracks, o2tracks, nullptr, nullptr, v0photons, v0legs, nullptr, nullptr);
}

void processGenDummy(MyCollisionsMC const&)
Expand Down
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