Skip to content

[PWGLF] Different implementations of MC filter #12739

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
romainschotter merged 2 commits into from
Aug 25, 2025
Merged

[PWGLF] Different implementations of MC filter #12739

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
60bad0d
Different implementations of MC filter
scannito Aug 25, 2025
155226e
Merge branch 'AliceO2Group:master' into Update
scannito Aug 25, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
73 changes: 65 additions & 8 deletions PWGLF/Tasks/Strangeness/phik0shortanalysis.cxx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,9 @@
#include "PWGLF/DataModel/mcCentrality.h"
#include "PWGLF/Utils/inelGt.h"

#include "Common/Core/TableHelper.h"
#include "Common/Core/TrackSelection.h"
#include "Common/Core/TrackSelectionDefaults.h"
#include "Common/Core/trackUtilities.h"
#include "Common/DataModel/Centrality.h"
#include "Common/DataModel/EventSelection.h"
Expand Down Expand Up @@ -224,8 +226,8 @@

// Configurables for dN/deta with phi computation
Configurable<bool> furtherCheckonMcCollision{"furtherCheckonMcCollision", true, "Further check on MC collisions"};
Configurable<bool> filterOnGenPhi{"filterOnGenPhi", true, "Filter on MC Phi"};
Configurable<bool> filterOnRecoPhiWPDG{"filterOnRecoPhiWPDG", true, "Filter on Reco Phi with WPDG"};
Configurable<int> filterOnGenPhi{"filterOnGenPhi", 1, "Filter on Gen Phi (0: K+K- pair like Phi, 1: proper Phi)"};
Configurable<int> filterOnRecoPhi{"filterOnRecoPhi", 1, "Filter on Reco Phi (0: without PDG, 1: with PDG)"};
Configurable<bool> fillMcPartsForAllReco{"fillMcPartsForAllReco", false, "Fill MC particles for all associated reco collisions"};

// Configurable for event mixing
Expand Down Expand Up @@ -307,6 +309,9 @@
Partition<FullMCTracks> posMCTracks = aod::track::signed1Pt > trackConfigs.cfgCutCharge;
Partition<FullMCTracks> negMCTracks = aod::track::signed1Pt < trackConfigs.cfgCutCharge;

Partition<FilteredMCTracks> posFiltMCTracks = aod::track::signed1Pt > trackConfigs.cfgCutCharge;
Partition<FilteredMCTracks> negFiltMCTracks = aod::track::signed1Pt < trackConfigs.cfgCutCharge;

// Necessary to flag INEL>0 events in GenMC
Service<o2::framework::O2DatabasePDG> pdgDB;

Expand Down Expand Up @@ -1046,6 +1051,40 @@
return false;
}

template <typename T>
bool eventHasGenKPair(const T& mcParticles)
{
int nKPair = 0;

for (const auto& mcParticle1 : mcParticles) {
if (!mcParticle1.isPhysicalPrimary() || std::abs(mcParticle1.eta()) > trackConfigs.etaMax)
continue;

for (const auto& mcParticle2 : mcParticles) {
if (!mcParticle2.isPhysicalPrimary() || std::abs(mcParticle2.eta()) > trackConfigs.etaMax)
continue;

if ((mcParticle1.pdgCode() != PDG_t::kKPlus || mcParticle2.pdgCode() != PDG_t::kKMinus) &&
(mcParticle1.pdgCode() != PDG_t::kKMinus || mcParticle2.pdgCode() != PDG_t::kKPlus))
continue;

ROOT::Math::PxPyPzMVector genKPair = recMother(mcParticle1, mcParticle2, massKa, massKa);
if (genKPair.Pt() < phiConfigs.minPhiPt)
continue;
if (genKPair.M() < phiConfigs.lowMPhi || genKPair.M() > phiConfigs.upMPhi)
continue;
if (std::abs(genKPair.Rapidity()) > deltaYConfigs.cfgYAcceptance)
continue;

nKPair++;
}
}

if (nKPair > 0)
return true;
return false;
}

template <typename T>
bool eventHasGenPhi(const T& mcParticles)
{
Expand All @@ -1060,7 +1099,7 @@
continue;

auto kDaughters = mcParticle.template daughters_as<aod::McParticles>();
if (kDaughters.size() != 2)

Check failure on line 1102 in PWGLF/Tasks/Strangeness/phik0shortanalysis.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
bool isPosKaon = false, isNegKaon = false;
for (const auto& kDaughter : kDaughters) {
Expand Down Expand Up @@ -1840,7 +1879,7 @@
if (mcTrack.isPhysicalPrimary()) {
mcPionHist.fill(HIST("h3RecMCDCAxyPrimPi"), track.pt(), track.dcaXY());
} else {
if (mcTrack.getProcess() == 4) { // Selection of secondary pions from weak decay

Check failure on line 1882 in PWGLF/Tasks/Strangeness/phik0shortanalysis.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
mcPionHist.fill(HIST("h3RecMCDCAxySecWeakDecayPi"), track.pt(), track.dcaXY());
} else { // Selection of secondary pions from material interactions
mcPionHist.fill(HIST("h3RecMCDCAxySecMaterialPi"), track.pt(), track.dcaXY());
Expand Down Expand Up @@ -2313,7 +2352,7 @@
if (mcParticle1.pdgCode() != o2::constants::physics::Pdg::kPhi)
continue;
auto kDaughters = mcParticle1.daughters_as<aod::McParticles>();
if (kDaughters.size() != 2)

Check failure on line 2355 in PWGLF/Tasks/Strangeness/phik0shortanalysis.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
bool isPosKaon = false, isNegKaon = false;
for (const auto& kDaughter : kDaughters) {
Expand Down Expand Up @@ -2450,7 +2489,7 @@
continue;
if (cfgisGenMCForClosure) {
auto kDaughters = mcParticle2.daughters_as<aod::McParticles>();
if (kDaughters.size() != 2)

Check failure on line 2492 in PWGLF/Tasks/Strangeness/phik0shortanalysis.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
bool isPosKaon = false, isNegKaon = false;
for (const auto& kDaughter : kDaughters) {
Expand Down Expand Up @@ -2527,7 +2566,7 @@
continue;
if (cfgisGenMCForClosure) {
auto kDaughters = mcParticle2.daughters_as<aod::McParticles>();
if (kDaughters.size() != 2)

Check failure on line 2569 in PWGLF/Tasks/Strangeness/phik0shortanalysis.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
bool isPosKaon = false, isNegKaon = false;
for (const auto& kDaughter : kDaughters) {
Expand Down Expand Up @@ -2673,8 +2712,18 @@

if (!pwglf::isINELgtNmc(mcParticlesThisMcColl, 0, pdgDB))
continue;
if (filterOnGenPhi && !eventHasGenPhi(mcParticlesThisMcColl))
continue;
switch (filterOnGenPhi) {
case 0:
if (!eventHasGenKPair(mcParticlesThisMcColl))
continue;
break;
case 1:
if (!eventHasGenPhi(mcParticlesThisMcColl))
continue;
break;
default:
break;
}

uint64_t numberAssocColl = 0;
std::vector<float> zVtxs;
Expand All @@ -2687,13 +2736,21 @@
if (acceptEventQA<true>(collision, false)) {
auto filteredMCTracksThisColl = filteredMCTracks.sliceBy(preslices.perColl, collision.globalIndex());

Partition<FilteredMCTracks> posFiltMCTracks = aod::track::signed1Pt > trackConfigs.cfgCutCharge;
posFiltMCTracks.bindTable(filteredMCTracksThisColl);
Partition<FilteredMCTracks> negFiltMCTracks = aod::track::signed1Pt < trackConfigs.cfgCutCharge;
negFiltMCTracks.bindTable(filteredMCTracksThisColl);

if (filterOnRecoPhiWPDG && !eventHasRecoPhiWPDG(posFiltMCTracks, negFiltMCTracks, mcParticles))
continue;
switch (filterOnRecoPhi) {
case 0:
if (!eventHasRecoPhi(posFiltMCTracks, negFiltMCTracks))
continue;
break;
case 1:
if (!eventHasRecoPhiWPDG(posFiltMCTracks, negFiltMCTracks, mcParticles))
continue;
break;
default:
break;
}

mcEventHist.fill(HIST("hGenMCRecoMultiplicityPercent"), mcCollision.centFT0M());
mcEventHist.fill(HIST("h2GenMCRecoVertexZvsMult"), collision.posZ(), mcCollision.centFT0M());
Expand Down Expand Up @@ -3142,7 +3199,7 @@
if (mcTrack.isPhysicalPrimary()) {
mcPionHist.fill(HIST("h3RecMCDCAxyPrimPi"), track.pt(), track.dcaXY());
} else {
if (mcTrack.getProcess() == 4) { // Selection of secondary pions from weak decay

Check failure on line 3202 in PWGLF/Tasks/Strangeness/phik0shortanalysis.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
mcPionHist.fill(HIST("h3RecMCDCAxySecWeakDecayPi"), track.pt(), track.dcaXY());
} else { // Selection of secondary pions from material interactions
mcPionHist.fill(HIST("h3RecMCDCAxySecMaterialPi"), track.pt(), track.dcaXY());
Expand Down
Loading