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[PWGHF] check origin of tracks without collision association #998

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Merged
vkucera merged 7 commits into from
Jul 15, 2022
Merged

[PWGHF] check origin of tracks without collision association #998

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5bacd77
[PWGHF] check origin of tracks without collision association
fgrosa Jul 15, 2022
cc20e0d
Fix comment
fgrosa Jul 15, 2022
a0462e4
Check also tracks associated to collisions for normalisation
fgrosa Jul 15, 2022
7e42555
Fix typos
fgrosa Jul 15, 2022
b3025e3
Remove partitions
fgrosa Jul 15, 2022
13320f2
Update PWGHF/Tasks/HFMCValidation.cxx
fgrosa Jul 15, 2022
defffda
Change type in for loop
fgrosa Jul 15, 2022
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37 changes: 29 additions & 8 deletions PWGHF/Tasks/HFMCValidation.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -108,7 +108,7 @@ struct ValidationGenLevel {
int bPerCollision = 0;
int bBarPerCollision = 0;

//Particles and their decay checked in the second part of the task
// Particles and their decay checked in the second part of the task
std::array<int, nCharmHadrons> PDGArrayParticle = {pdg::Code::kDPlus, 413, pdg::Code::kD0, 431, pdg::Code::kLambdaCPlus, pdg::Code::kXiCPlus, pdg::Code::kJpsi};
std::array<std::array<int, 3>, nCharmHadrons> arrPDGFinal = {{{kPiPlus, kPiPlus, -kKPlus}, {kPiPlus, kPiPlus, -kKPlus}, {-kKPlus, kPiPlus, 0}, {kPiPlus, kKPlus, -kKPlus}, {kProton, -kKPlus, kPiPlus}, {kProton, -kKPlus, kPiPlus}, {kElectron, -kElectron, 0}}};
std::array<int, nCharmHadrons> counterPrompt{0}, counterNonPrompt{0};
Expand Down Expand Up @@ -182,7 +182,7 @@ struct ValidationGenLevel {
double vertexPrimary[3] = {mccollision.posX(), mccollision.posY(), mccollision.posZ()};

auto decayLength = RecoDecay::distance(vertexPrimary, vertexDau);
//Filling histograms with per-component momentum conservation
// Filling histograms with per-component momentum conservation
registry.fill(HIST("hMomentumCheck"), float(momentumCheck));
registry.fill(HIST("hPxDiffMotherDaughterGen"), pxDiff);
registry.fill(HIST("hPyDiffMotherDaughterGen"), pyDiff);
Expand All @@ -204,7 +204,7 @@ struct ValidationGenLevel {
}
}
}
} //end particles
} // end particles
registry.fill(HIST("hCountAverageC"), cPerCollision);
registry.fill(HIST("hCountAverageB"), bPerCollision);
registry.fill(HIST("hCountAverageCbar"), cBarPerCollision);
Expand Down Expand Up @@ -242,10 +242,19 @@ struct ValidationRecLevel {
std::array<std::shared_ptr<TH1>, nCharmHadrons> histDeltaPt, histDeltaPx, histDeltaPy, histDeltaPz, histDeltaSecondaryVertexX, histDeltaSecondaryVertexY, histDeltaSecondaryVertexZ, histDeltaDecayLength;
std::array<std::array<std::array<std::shared_ptr<TH1>, 3>, 2>, nCharmHadrons> histPtDau, histEtaDau, histImpactParameterDau;
std::array<std::array<std::shared_ptr<TH1>, 2>, nCharmHadrons> histPtReco;
std::array<std::shared_ptr<TH1>, 2> histOriginTracks;

HistogramRegistry registry{"registry", {}};
void init(o2::framework::InitContext&)
{
histOriginTracks[0] = registry.add<TH1>("histOriginNonAssociatedTracks", ";origin;entries", HistType::kTH1F, {{4, -1.5, 2.5}});
histOriginTracks[1] = registry.add<TH1>("histOriginAssociatedTracks", ";origin;entries", HistType::kTH1F, {{4, -1.5, 2.5}});
for (std::size_t iHist{0}; iHist < histOriginTracks.size(); ++iHist) {
histOriginTracks[iHist]->GetXaxis()->SetBinLabel(1, "no MC particle");
histOriginTracks[iHist]->GetXaxis()->SetBinLabel(2, "no quark");
histOriginTracks[iHist]->GetXaxis()->SetBinLabel(3, "charm");
histOriginTracks[iHist]->GetXaxis()->SetBinLabel(4, "beauty");
}
for (auto iHad = 0; iHad < nCharmHadrons; ++iHad) {
histDeltaPt[iHad] = registry.add<TH1>(Form("histDeltaPt%s", particleNames[iHad].data()), Form("Pt difference reco - MC %s; #it{p}_{T}^{reco} - #it{p}_{T}^{gen} (GeV/#it{c}); entries", labels[iHad].data()), HistType::kTH1F, {{2000, -1., 1.}});
histDeltaPx[iHad] = registry.add<TH1>(Form("histDeltaPx%s", particleNames[iHad].data()), Form("Px difference reco - MC %s; #it{p}_{x}^{reco} - #it{p}_{x}^{gen} (GeV/#it{c}); entries", labels[iHad].data()), HistType::kTH1F, {{2000, -1., 1.}});
Expand All @@ -271,6 +280,18 @@ struct ValidationRecLevel {

void process(HfCandProng2WithMCRec const& cand2Prongs, HfCandProng3WithMCRec const& cand3Prongs, aod::BigTracksMC const& tracks, aod::McParticles const& particlesMC)
{
// loop over tracks
for (auto& track : tracks) {
uint index = uint(track.collisionId() >= 0);
if (track.has_mcParticle()) {
auto particle = track.mcParticle(); // get corresponding MC particle to check origin
auto origin = RecoDecay::getCharmHadronOrigin(particlesMC, particle, true);
histOriginTracks[index]->Fill(origin);
} else {
histOriginTracks[index]->Fill(-1.);
}
}

// loop over 2-prong candidates
for (auto& cand2Prong : cand2Prongs) {

Expand Down Expand Up @@ -303,7 +324,7 @@ struct ValidationRecLevel {
histDeltaPx[whichHad]->Fill(cand2Prong.px() - mother.px());
histDeltaPy[whichHad]->Fill(cand2Prong.py() - mother.py());
histDeltaPz[whichHad]->Fill(cand2Prong.pz() - mother.pz());
//Compare Secondary vertex and decay length with MC
// Compare Secondary vertex and decay length with MC
auto daughter0 = mother.daughters_as<aod::McParticles>().begin();
double vertexDau[3] = {daughter0.vx(), daughter0.vy(), daughter0.vz()};
double vertexMoth[3] = {mother.vx(), mother.vy(), mother.vz()};
Expand All @@ -327,7 +348,7 @@ struct ValidationRecLevel {
histEtaDau[whichHad][whichOrigin][1]->Fill(RecoDecay::eta(momDau1));
histImpactParameterDau[whichHad][whichOrigin][1]->Fill(cand2Prong.impactParameter1());
}
} //end loop on 2-prong candidates
} // end loop on 2-prong candidates

// loop over 3-prong candidates
for (auto& cand3Prong : cand3Prongs) {
Expand Down Expand Up @@ -368,7 +389,7 @@ struct ValidationRecLevel {
histDeltaPx[whichHad]->Fill(cand3Prong.px() - mother.px());
histDeltaPy[whichHad]->Fill(cand3Prong.py() - mother.py());
histDeltaPz[whichHad]->Fill(cand3Prong.pz() - mother.pz());
//Compare Secondary vertex and decay length with MC
// Compare Secondary vertex and decay length with MC
auto daughter0 = mother.daughters_as<aod::McParticles>().begin();
double vertexDau[3] = {daughter0.vx(), daughter0.vy(), daughter0.vz()};
double vertexMoth[3] = {mother.vx(), mother.vy(), mother.vz()};
Expand Down Expand Up @@ -398,8 +419,8 @@ struct ValidationRecLevel {
histEtaDau[whichHad][whichOrigin][2]->Fill(RecoDecay::eta(momDau2));
histImpactParameterDau[whichHad][whichOrigin][2]->Fill(cand3Prong.impactParameter2());
}
} //end loop on 3-prong candidates
} //end process
} // end loop on 3-prong candidates
} // end process
};

WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
Expand Down