Skip to content

[ALICE3] Adding decay channel check for D efficiency evaluation in decay finder #11492

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
njacazio merged 4 commits into from
Jun 7, 2025
Merged

[ALICE3] Adding decay channel check for D efficiency evaluation in decay finder #11492

Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
3542ff4
[ALICE 3] Adding decay channel check for D efficiency evaluation in d…
Jun 6, 2025
2d6fd94
Update alice3-decayfinder.cxx
njacazio Jun 7, 2025
4a3c16b
Update alice3-decayfinder.cxx
njacazio Jun 7, 2025
c714840
Update alice3-decayfinder.cxx
njacazio Jun 7, 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
36 changes: 34 additions & 2 deletions ALICE3/TableProducer/alice3-decayfinder.cxx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -129,8 +129,8 @@

HistogramRegistry histos{"histos", {}, OutputObjHandlingPolicy::AnalysisObject};

Partition<aod::McParticles> trueD = aod::mcparticle::pdgCode == 421;

Check failure on line 132 in ALICE3/TableProducer/alice3-decayfinder.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
Partition<aod::McParticles> trueDbar = aod::mcparticle::pdgCode == -421;

Check failure on line 133 in ALICE3/TableProducer/alice3-decayfinder.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
Partition<aod::McParticles> trueLc = aod::mcparticle::pdgCode == 4122;
Partition<aod::McParticles> trueLcbar = aod::mcparticle::pdgCode == -4122;

Expand Down Expand Up @@ -229,7 +229,7 @@
std::array<float, 3> negP;
posTrack.getPxPyPzGlo(posP);
negTrack.getPxPyPzGlo(negP);
dmeson.dcaDau = TMath::Sqrt(fitter.getChi2AtPCACandidate());

Check failure on line 232 in ALICE3/TableProducer/alice3-decayfinder.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
dmeson.Pdaug[0] = posP[0];
dmeson.Pdaug[1] = posP[1];
dmeson.Pdaug[2] = posP[2];
Expand All @@ -238,12 +238,12 @@
dmeson.Ndaug[2] = negP[2];

// return mass and kinematic variables
dmeson.mass = RecoDecay::m(array{array{posP[0], posP[1], posP[2]}, array{negP[0], negP[1], negP[2]}}, array{posMass, negMass});

Check failure on line 241 in ALICE3/TableProducer/alice3-decayfinder.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[std-prefix] 

Use std:: prefix for names from the std namespace.
dmeson.pt = std::hypot(posP[0] + negP[0], posP[1] + negP[1]);
dmeson.ptdaugPos = std::hypot(posP[0], posP[1]);
dmeson.ptdaugNeg = std::hypot(negP[0], negP[1]);
dmeson.phi = RecoDecay::phi(array{posP[0] + negP[0], posP[1] + negP[1]});

Check failure on line 245 in ALICE3/TableProducer/alice3-decayfinder.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[std-prefix] 

Use std:: prefix for names from the std namespace.
dmeson.eta = RecoDecay::eta(array{posP[0] + negP[0], posP[1] + negP[1], posP[2] + negP[2]});

Check failure on line 246 in ALICE3/TableProducer/alice3-decayfinder.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[std-prefix] 

Use std:: prefix for names from the std namespace.
dmeson.y = RecoDecay::y(std::array{posP[0] + negP[0], posP[1] + negP[1], posP[2] + negP[2]}, dmeson.mass);
const auto posSV = fitter.getPCACandidate();
dmeson.posSV[0] = posSV[0];
Expand All @@ -267,6 +267,7 @@
dmeson.mcTruth = 2; // D0bar
}
}

return true;
}

Expand Down Expand Up @@ -300,15 +301,15 @@
t1.getPxPyPzGlo(P1);
t2.getPxPyPzGlo(P2);

lcbaryon.dcaDau = TMath::Sqrt(fitter3.getChi2AtPCACandidate());

Check failure on line 304 in ALICE3/TableProducer/alice3-decayfinder.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.
if (lcbaryon.dcaDau > dcaDaughtersSelection)
return false;

// return mass
lcbaryon.mass = RecoDecay::m(array{array{P0[0], P0[1], P0[2]}, array{P1[0], P1[1], P1[2]}, array{P2[0], P2[1], P2[2]}}, array{p0mass, p1mass, p2mass});

Check failure on line 309 in ALICE3/TableProducer/alice3-decayfinder.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[std-prefix] 

Use std:: prefix for names from the std namespace.
lcbaryon.pt = std::hypot(P0[0] + P1[0] + P2[0], P0[1] + P1[1] + P2[1]);
lcbaryon.phi = RecoDecay::phi(array{P0[0] + P1[0] + P2[0], P0[1] + P1[1] + P2[1]});

Check failure on line 311 in ALICE3/TableProducer/alice3-decayfinder.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[std-prefix] 

Use std:: prefix for names from the std namespace.
lcbaryon.eta = RecoDecay::eta(array{P0[0] + P1[0] + P2[0], P0[1] + P1[1] + P2[1], P0[2] + P1[2] + P2[2]});

Check failure on line 312 in ALICE3/TableProducer/alice3-decayfinder.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[std-prefix] 

Use std:: prefix for names from the std namespace.
return true;
}

Expand Down Expand Up @@ -362,7 +363,9 @@

if (doprocessFindDmesons) {
histos.add("h2dGenD", "h2dGenD", kTH2F, {axisPt, axisEta});
histos.add("h2dGenD_KpiOnly", "h2dGenD_KpiOnly", kTH2F, {axisPt, axisEta});
histos.add("h2dGenDbar", "h2dGenDbar", kTH2F, {axisPt, axisEta});
histos.add("h2dGenDbar_KpiOnly", "h2dGenDbar_KpiOnly", kTH2F, {axisPt, axisEta});
histos.add("h3dRecD", "h3dRecD", kTH3F, {axisPt, axisEta, axisDMass});
histos.add("h3dRecDSig", "h3dRecDSig", kTH3F, {axisPt, axisEta, axisDMass});
histos.add("h3dRecDRefl", "h3dRecDRefl", kTH3F, {axisPt, axisEta, axisDMass});
Expand Down Expand Up @@ -471,11 +474,37 @@
if (doprocessFindDmesons) {
for (auto const& mcParticle : trueD) {
histos.fill(HIST("h2dGenD"), mcParticle.pt(), mcParticle.eta());
histos.fill(HIST("hDGenForEfficiency"), mcParticle.pt(), mcParticle.y()); // in common for D and Dbar
auto daughters = mcParticle.template daughters_as<aod::McParticles>();
if (daughters.size() != 2)
continue;
// int daugID[2];
int daugPDG[2], i = 0;
for (const auto& dau : daughters) {
// daugID[i] = dau.globalIndex();
daugPDG[i] = dau.pdgCode();
i++;
}
if ((std::fabs(daugPDG[0]) == 321 && std::fabs(daugPDG[1]) == 211) || (std::fabs(daugPDG[0]) == 211 && std::fabs(daugPDG[1]) == 321)) {
histos.fill(HIST("h2dGenD_KpiOnly"), mcParticle.pt(), mcParticle.eta());
histos.fill(HIST("hDGenForEfficiency"), mcParticle.pt(), mcParticle.y()); // in common for D and Dbar
}
}
for (auto const& mcParticle : trueDbar) {
histos.fill(HIST("h2dGenDbar"), mcParticle.pt(), mcParticle.eta());
histos.fill(HIST("hDGenForEfficiency"), mcParticle.pt(), mcParticle.y()); // in common for D and Dbar
auto daughters = mcParticle.template daughters_as<aod::McParticles>();
if (daughters.size() != 2)
continue;
// int daugID[2];
int daugPDG[2], i = 0;
for (const auto& dau : daughters) {
// daugID[i] = dau.globalIndex();
daugPDG[i] = dau.pdgCode();
i++;
}
if ((std::fabs(daugPDG[0]) == 321 && std::fabs(daugPDG[1]) == 211) || (std::fabs(daugPDG[0]) == 211 && std::fabs(daugPDG[1]) == 321)) {
histos.fill(HIST("h2dGenDbar_KpiOnly"), mcParticle.pt(), mcParticle.eta());
histos.fill(HIST("hDGenForEfficiency"), mcParticle.pt(), mcParticle.y()); // in common for D and Dbar
}
}
}
if (doprocessFindLcBaryons) {
Expand Down Expand Up @@ -509,6 +538,7 @@
// D0 mesons
for (auto const& posTrackRow : tracksPiPlusFromDgrouped) {
for (auto const& negTrackRow : tracksKaMinusFromDgrouped) {

if (mcSameMotherCheck && !checkSameMother(posTrackRow, negTrackRow))
continue;
if (!buildDecayCandidateTwoBody(posTrackRow, negTrackRow, o2::constants::physics::MassPionCharged, o2::constants::physics::MassKaonCharged, mcParticles))
Expand Down Expand Up @@ -651,9 +681,11 @@
mcTruthOutcome(dmeson.mcTruth);
}
}

// D0bar mesons
for (auto const& posTrackRow : tracksKaPlusFromDgrouped) {
for (auto const& negTrackRow : tracksPiMinusFromDgrouped) {

if (mcSameMotherCheck && !checkSameMother(posTrackRow, negTrackRow))
continue;
if (!buildDecayCandidateTwoBody(posTrackRow, negTrackRow, o2::constants::physics::MassKaonCharged, o2::constants::physics::MassPionCharged, mcParticles))
Expand Down
Loading