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[PWGLF] he3HadronFemto now supports configurable event selection. Finer binning for purity. Fix in nucleiFromHypertriton #14582

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Merged
maciacco merged 6 commits into from
Jan 22, 2026
+30 −30
Merged

[PWGLF] he3HadronFemto now supports configurable event selection. Finer binning for purity. Fix in nucleiFromHypertriton #14582

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78d3076
fixed bug: missing std::abs() when selecting the nucleus pdg code
GiorgioAlbertoLucia Dec 18, 2025
74aea83
added ITS nsigma selections in the purity study
GiorgioAlbertoLucia Dec 18, 2025
222fd99
added individual event selections. Now supporting finer pt binning fo…
GiorgioAlbertoLucia Jan 22, 2026
9d6152c
Merge branch 'master' into li4
GiorgioAlbertoLucia Jan 22, 2026
ef737fd
Please consider the following formatting changes
alibuild Jan 22, 2026
23da159
Merge pull request #18 from alibuild/alibot-cleanup-14582
GiorgioAlbertoLucia Jan 22, 2026
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60 changes: 30 additions & 30 deletions PWGLF/TableProducer/Nuspex/he3HadronFemto.cxx
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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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[name/workflow-file] 

Name of a workflow file must match the name of the main struct in it (without the PWG prefix). (Class implementation files should be in "Core" directories.)
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
Expand All @@ -17,6 +17,7 @@

#include "PWGLF/DataModel/EPCalibrationTables.h"
#include "PWGLF/DataModel/LFhe3HadronTables.h"
#include "PWGLF/Utils/nucleiUtils.h"
#include "PWGLF/Utils/svPoolCreator.h"

#include "Common/Core/PID/PIDTOF.h"
Expand All @@ -38,7 +39,6 @@
#include "CCDB/BasicCCDBManager.h"
#include "DataFormatsParameters/GRPMagField.h"
#include "DataFormatsParameters/GRPObject.h"
#include "MathUtils/BetheBlochAleph.h"
#include "DetectorsBase/GeometryManager.h"
#include "DetectorsBase/Propagator.h"
#include "Framework/ASoAHelpers.h"
Expand All @@ -47,9 +47,10 @@
#include "Framework/HistogramRegistry.h"
#include "Framework/StepTHn.h"
#include "Framework/runDataProcessing.h"
#include "MathUtils/BetheBlochAleph.h"
#include "ReconstructionDataFormats/Track.h"

#include <TDatabasePDG.h>

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[pdg/database] 

Do not use TDatabasePDG directly. Use o2::constants::physics::Mass... or Service<o2::framework::O2DatabasePDG> instead.
#include <TDirectory.h>
#include <TFile.h>
#include <TH1F.h>
Expand Down Expand Up @@ -237,6 +238,7 @@
Configurable<float> settingCutPtMinTOFHad{"settingCutPtMinTOFHad", 0.4f, "Minimum pT to apply the TOF cut on hadrons"};
Configurable<float> settingCutNsigmaTOF{"settingCutNsigmaTOF", 3.0f, "Value of the TOF Nsigma cut"};

Configurable<LabeledArray<int>> settingEventSelections{"settingEventSelections", {nuclei::EvSelDefault[0], 8, 1, nuclei::eventSelectionLabels, nuclei::eventSelectionTitle}, "Event selections"};
Configurable<int> settingNoMixedEvents{"settingNoMixedEvents", 5, "Number of mixed events per event"};
Configurable<bool> settingEnableBkgUS{"settingEnableBkgUS", false, "Enable US background"};
Configurable<bool> settingEnableDCAfitter{"settingEnableDCAfitter", false, "Enable DCA fitter"};
Expand Down Expand Up @@ -295,13 +297,14 @@
HistogramRegistry mQaRegistry{
"QA",
{
{"hEventSelections", "Event selections; Selection step; Counts", {HistType::kTH1D, {{nuclei::evSel::kNevSels + 1, -0.5f, static_cast<float>(nuclei::evSel::kNevSels) + 0.5f}}}},
{"hEvents", "Number of events processed;Counts", {HistType::kTH1F, {{1, -0.5f, 2.5f}}}},
{"hVtxZBefore", "Vertex distribution in Z before selections;Z (cm)", {HistType::kTH1F, {{400, -20.0, 20.0}}}},
{"hVtxZ", "Vertex distribution in Z;Z (cm)", {HistType::kTH1F, {{400, -20.0, 20.0}}}},
{"hCentralityFT0A", ";Centrality FT0A (%)", {HistType::kTH1F, {{100, 0, 100.0}}}},
{"hCentralityFT0C", ";Centrality FT0C (%)", {HistType::kTH1F, {{100, 0, 100.0}}}},
{"hNcontributor", "Number of primary vertex contributor", {HistType::kTH1F, {{2000, 0.0f, 2000.0f}}}},
{"hTrackSel", "Accepted tracks", {HistType::kTH1F, {{Selections::kAll, -0.5, static_cast<double>(Selections::kAll) - 0.5}}}},
{"hEvents", "; Events;", {HistType::kTH1F, {{3, -0.5, 2.5}}}},
{"hEmptyPool", "svPoolCreator did not find track pairs false/true", {HistType::kTH1F, {{2, -0.5, 1.5}}}},
{"hhe3HadtInvMass", "; M(^{3}He + p) (GeV/#it{c}^{2})", {HistType::kTH1F, {{300, 3.74f, 4.34f}}}},

Expand All @@ -319,16 +322,16 @@
{"Had/hNClsHadITS", "had;N_{ITS} Cluster", {HistType::kTH1F, {{20, -10.0f, 10.0f}}}},
{"Had/hChi2NClHadITS", "had;Chi2_{ITS} Ncluster", {HistType::kTH1F, {{100, 0, 100.0f}}}},
{"Had/hHadronPt", "had; #it{p}_{T} (GeV/#it{c})", {HistType::kTH1F, {{120, -3.0f, 3.0f}}}},
{"Had/h2NsigmaHadronITS", "NsigmaHadron ITS distribution; #it{p}_{T}(GeV/#it{c}); n#sigma_{ITS}(had)", {HistType::kTH2F, {{100, -5.0f, 5.0f}, {200, -5.0f, 5.0f}}}},
{"Had/h2NsigmaHadronITS_preselection", "NsigmaHadron ITS distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{ITS}(had)", {HistType::kTH2F, {{100, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
{"Had/h2NsigmaHadronTPC", "NsigmaHadron TPC distribution; #it{p}_{T}(GeV/#it{c}); n#sigma_{TPC}(had)", {HistType::kTH2F, {{100, -5.0f, 5.0f}, {200, -5.0f, 5.0f}}}},
{"Had/h2NsigmaHadronTPC_preselection", "NsigmaHadron TPC distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TPC}(had)", {HistType::kTH2F, {{100, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
{"Had/h2NsigmaHadronTPC_mcBackground", "NsigmaHadron TPC distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TPC}(had)", {HistType::kTH2F, {{100, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
{"Had/h2NsigmaHadronTPC_mcSignal", "NsigmaHadron TPC distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TPC}(had)", {HistType::kTH2F, {{100, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
{"Had/h2NsigmaHadronTOF", "NsigmaHadron TOF distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TOF}(had)", {HistType::kTH2F, {{100, -5.0f, 5.0f}, {200, -5.0f, 5.0f}}}},
{"Had/h2NsigmaHadronTOF_preselection", "NsigmaHadron TOF distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TOF}(had)", {HistType::kTH2F, {{100, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
{"Had/h2NsigmaHadronTOF_mcBackground", "NsigmaHadron TOF distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TOF}(had)", {HistType::kTH2F, {{100, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
{"Had/h2NsigmaHadronTOF_mcSignal", "NsigmaHadron TOF distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TOF}(had)", {HistType::kTH2F, {{100, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
{"Had/h2NsigmaHadronITS", "NsigmaHadron ITS distribution; #it{p}_{T}(GeV/#it{c}); n#sigma_{ITS}(had)", {HistType::kTH2F, {{200, -5.0f, 5.0f}, {200, -5.0f, 5.0f}}}},
{"Had/h2NsigmaHadronITS_preselection", "NsigmaHadron ITS distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{ITS}(had)", {HistType::kTH2F, {{200, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
{"Had/h2NsigmaHadronTPC", "NsigmaHadron TPC distribution; #it{p}_{T}(GeV/#it{c}); n#sigma_{TPC}(had)", {HistType::kTH2F, {{200, -5.0f, 5.0f}, {200, -5.0f, 5.0f}}}},
{"Had/h2NsigmaHadronTPC_preselection", "NsigmaHadron TPC distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TPC}(had)", {HistType::kTH2F, {{200, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
{"Had/h2NsigmaHadronTPC_mcBackground", "NsigmaHadron TPC distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TPC}(had)", {HistType::kTH2F, {{200, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
{"Had/h2NsigmaHadronTPC_mcSignal", "NsigmaHadron TPC distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TPC}(had)", {HistType::kTH2F, {{200, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
{"Had/h2NsigmaHadronTOF", "NsigmaHadron TOF distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TOF}(had)", {HistType::kTH2F, {{200, -5.0f, 5.0f}, {200, -5.0f, 5.0f}}}},
{"Had/h2NsigmaHadronTOF_preselection", "NsigmaHadron TOF distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TOF}(had)", {HistType::kTH2F, {{200, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
{"Had/h2NsigmaHadronTOF_mcBackground", "NsigmaHadron TOF distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TOF}(had)", {HistType::kTH2F, {{200, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
{"Had/h2NsigmaHadronTOF_mcSignal", "NsigmaHadron TOF distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TOF}(had)", {HistType::kTH2F, {{200, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
},
OutputObjHandlingPolicy::AnalysisObject,
false,
Expand Down Expand Up @@ -358,8 +361,14 @@
if (settingSkipAmbiTracks) {
mSvPoolCreator.setSkipAmbiTracks();
}
const int numberParticle = 5;
for (int i = 0; i < numberParticle; i++) {

mQaRegistry.get<TH1>(HIST("hEventSelections"))->GetXaxis()->SetBinLabel(1, "All");
for (int iSel = 1; iSel < nuclei::evSel::kNevSels + 1; iSel++) {
mQaRegistry.get<TH1>(HIST("hEventSelections"))->GetXaxis()->SetBinLabel(iSel + 1, nuclei::eventSelectionLabels[iSel].c_str());
}

const int nBetheBlochParameters = 5;
for (int i = 0; i < nBetheBlochParameters; i++) {
mBBparamsHe[i] = settingBetheBlochParams->get("He3", Form("p%i", i));
}
mBBparamsHe[5] = settingBetheBlochParams->get("He3", "resolution");
Expand Down Expand Up @@ -423,31 +432,22 @@
bool selectCollision(const Tcollision& collision, const aod::BCsWithTimestamps&)
{
mQaRegistry.fill(HIST("hEvents"), 0);
mQaRegistry.fill(HIST("hVtxZBefore"), collision.posZ());

auto bc = collision.template bc_as<aod::BCsWithTimestamps>();
initCCDB(bc);

if constexpr (isMC) {
if (/*!collision.sel8() ||*/ std::abs(collision.posZ()) > settingCutVertex) {
return false;
}
} else {

if (!collision.sel8() || std::abs(collision.posZ()) > settingCutVertex) {
return false;
}
if (settingSkimmedProcessing) {
bool zorroSelected = mZorro.isSelected(collision.template bc_as<aod::BCsWithTimestamps>().globalBC());
if (zorroSelected) {
mQaRegistry.fill(HIST("hEvents"), 2);
}
if (!nuclei::eventSelection(collision, mQaRegistry, settingEventSelections, settingCutVertex)) {
return false;
}
if (settingSkimmedProcessing) {
bool zorroSelected = mZorro.isSelected(collision.template bc_as<aod::BCsWithTimestamps>().globalBC());
if (zorroSelected) {
mQaRegistry.fill(HIST("hEvents"), 2);
}
}

mQaRegistry.fill(HIST("hEvents"), 1);
mQaRegistry.fill(HIST("hNcontributor"), collision.numContrib());
mQaRegistry.fill(HIST("hVtxZ"), collision.posZ());
mQaRegistry.fill(HIST("hCentralityFT0A"), collision.centFT0A());
mQaRegistry.fill(HIST("hCentralityFT0C"), collision.centFT0C());
return true;
Expand Down Expand Up @@ -480,7 +480,7 @@
template <typename Ttrack>
float correctPtHe3TrackedAsTriton(const Ttrack& candidate)
{
if (candidate.pt() < 2.5 && candidate.pidForTracking() == o2::track::PID::Triton)

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
return candidate.pt() * 2. * (1. - kHePidTrkParams[0] - kHePidTrkParams[1] * candidate.pt() * 2.);

return candidate.pt() * 2.;
Expand Down Expand Up @@ -648,7 +648,7 @@
std::array<float, 3> collisionVertex = getCollisionVertex(collisions, collIdx);
const auto& pca = mFitter.getPCACandidate();
float distance = defaultTodistance;
for (int i = 0; i < 3; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
distance += (pca[i] - collisionVertex[i]) * (pca[i] - collisionVertex[i]);
}
if (distanceMin < 0 || distance < distanceMin) {
Expand All @@ -670,7 +670,7 @@
std::array<float, 3> collisionVertex = getCollisionVertex(collisions, he3Hadcand.collisionID);

he3Hadcand.momHe3 = std::array{trackHe3.px(), trackHe3.py(), trackHe3.pz()};
for (int i = 0; i < 3; i++)

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
he3Hadcand.momHe3[i] = he3Hadcand.momHe3[i] * 2;
he3Hadcand.momHad = std::array{trackHad.px(), trackHad.py(), trackHad.pz()};
float invMass = CommonInite;
Expand Down
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