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Merged
gbencedi merged 1 commit into from
Nov 8, 2025
Merged

[PWGLF] add dca truth #13727

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21 changes: 20 additions & 1 deletion PWGMM/Mult/Tasks/dndetaMFTPbPb.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -162,7 +162,6 @@ struct DndetaMFTPbPb {
Configurable<bool> usePtCut{"usePtCut", false, "use track pT cut"};
Configurable<float> minPt{"minPt", 0., "minimum pT of the MFT tracks"};
Configurable<bool> requireCA{"requireCA", false, "Use Cellular Automaton track-finding algorithm"};
Configurable<bool> excludeAmbiguous{"excludeAmbiguous", false, "Exclude Ambiguous tracks"};
Configurable<float> maxDCAxy{"maxDCAxy", 0.01f, "Cut on dca XY"};
Configurable<float> maxDCAz{"maxDCAz", 0.01f, "Cut on dca Z"};
} trackCuts;
Expand Down Expand Up @@ -970,9 +969,13 @@ struct DndetaMFTPbPb {
registry.add({"Tracks/THnDCAxyBestRec", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm)", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis}}});
registry.add({"Tracks/THnDCAxyBestRecFake", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm)", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis}}});
registry.add({"Tracks/THnDCAxyBestGenPrim", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm)", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis}}});
registry.add({"Tracks/THnDCAxyBestGenTruthPrim", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm)", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis}}});
registry.add({"Tracks/THnDCAxyBestGenPrimWrongColl", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm)", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis}}});
registry.add({"Tracks/THnDCAxyBestGenTruthPrimWrongColl", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm)", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis}}});
registry.add({"Tracks/THnDCAxyBestGenSec", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm)", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis}}});
registry.add({"Tracks/THnDCAxyBestGenTruthSec", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm)", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis}}});
registry.add({"Tracks/THnDCAxyBestGenSecWrongColl", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm)", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis}}});
registry.add({"Tracks/THnDCAxyBestGenTruthSecWrongColl", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm)", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis}}});
registry.add({"Tracks/THnDCAxyBestGenSecWeak", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm)", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis}}});
registry.add({"Tracks/THnDCAxyBestGenSecMat", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm)", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis}}});
}
Expand All @@ -985,9 +988,13 @@ struct DndetaMFTPbPb {
registry.add({"Tracks/Centrality/THnDCAxyBestRec", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm); centrality", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis, centralityAxis}}});
registry.add({"Tracks/Centrality/THnDCAxyBestRecFake", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm); centrality", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis, centralityAxis}}});
registry.add({"Tracks/Centrality/THnDCAxyBestGenPrim", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm); centrality", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis, centralityAxis}}});
registry.add({"Tracks/Centrality/THnDCAxyBestGenTruthPrim", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm); centrality", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis, centralityAxis}}});
registry.add({"Tracks/Centrality/THnDCAxyBestGenPrimWrongColl", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm); centrality", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis, centralityAxis}}});
registry.add({"Tracks/Centrality/THnDCAxyBestGenTruthPrimWrongColl", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm); centrality", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis, centralityAxis}}});
registry.add({"Tracks/Centrality/THnDCAxyBestGenSec", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm); centrality", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis, centralityAxis}}});
registry.add({"Tracks/Centrality/THnDCAxyBestGenTruthSec", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm); centrality", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis, centralityAxis}}});
registry.add({"Tracks/Centrality/THnDCAxyBestGenSecWrongColl", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm); centrality", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis, centralityAxis}}});
registry.add({"Tracks/Centrality/THnDCAxyBestGenTruthSecWrongColl", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm); centrality", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis, centralityAxis}}});
registry.add({"Tracks/Centrality/THnDCAxyBestGenSecWeak", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm); centrality", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis, centralityAxis}}});
registry.add({"Tracks/Centrality/THnDCAxyBestGenSecMat", "; p_{T} (GeV/c); #eta; Z_{vtx} (cm); DCA_{XY} (cm); DCA_{Z} (cm); centrality", {HistType::kTHnSparseF, {ptAxis, etaAxis, zAxis, dcaxyAxis, dcazAxis, centralityAxis}}});
}
Expand Down Expand Up @@ -3227,6 +3234,10 @@ struct DndetaMFTPbPb {
continue;
}

const auto dcaXtruth(particle.vx() - particle.mcCollision().posX());
const auto dcaYtruth(particle.vy() - particle.mcCollision().posY());
const auto dcaZtruth(particle.vz() - particle.mcCollision().posZ());
auto dcaXYtruth = std::sqrt(dcaXtruth * dcaXtruth + dcaYtruth * dcaYtruth);
auto mcCollision = particle.template mcCollision_as<aod::McCollisions>();

if (eventCuts.useZDiffCut) {
Expand All @@ -3239,8 +3250,10 @@ struct DndetaMFTPbPb {
if (!particle.isPhysicalPrimary()) { // Secondaries (weak decays and material)
if constexpr (has_reco_cent<C>) {
registry.fill(HIST("Tracks/Centrality/THnDCAxyBestGenSec"), particle.pt(), particle.eta(), mcCollision.posZ(), atrack.bestDCAXY(), atrack.bestDCAZ(), crec);
registry.fill(HIST("Tracks/Centrality/THnDCAxyBestGenTruthSec"), particle.pt(), particle.eta(), mcCollision.posZ(), dcaXYtruth, dcaZtruth, crec);
} else {
registry.fill(HIST("Tracks/THnDCAxyBestGenSec"), particle.pt(), particle.eta(), mcCollision.posZ(), atrack.bestDCAXY(), atrack.bestDCAZ());
registry.fill(HIST("Tracks/THnDCAxyBestGenTruthSec"), particle.pt(), particle.eta(), mcCollision.posZ(), dcaXYtruth, dcaZtruth);
}
if (particle.getProcess() == TMCProcess::kPDecay) { // Particles from decay
if constexpr (has_reco_cent<C>) {
Expand All @@ -3258,22 +3271,28 @@ struct DndetaMFTPbPb {
} else { // Primaries
if constexpr (has_reco_cent<C>) {
registry.fill(HIST("Tracks/Centrality/THnDCAxyBestGenPrim"), particle.pt(), particle.eta(), mcCollision.posZ(), atrack.bestDCAXY(), atrack.bestDCAZ(), crec);
registry.fill(HIST("Tracks/Centrality/THnDCAxyBestGenTruthPrim"), particle.pt(), particle.eta(), mcCollision.posZ(), dcaXYtruth, dcaZtruth, crec);
} else {
registry.fill(HIST("Tracks/THnDCAxyBestGenPrim"), particle.pt(), particle.eta(), mcCollision.posZ(), atrack.bestDCAXY(), atrack.bestDCAZ());
registry.fill(HIST("Tracks/THnDCAxyBestGenTruthPrim"), particle.pt(), particle.eta(), mcCollision.posZ(), dcaXYtruth, dcaZtruth);
}
}
} else { // Wrong collision
if (!particle.isPhysicalPrimary()) { // Secondaries (weak decays and material)
if constexpr (has_reco_cent<C>) {
registry.fill(HIST("Tracks/Centrality/THnDCAxyBestGenSecWrongColl"), particle.pt(), particle.eta(), mcCollision.posZ(), atrack.bestDCAXY(), atrack.bestDCAZ(), crec);
registry.fill(HIST("Tracks/Centrality/THnDCAxyBestGenTruthSecWrongColl"), particle.pt(), particle.eta(), mcCollision.posZ(), dcaXYtruth, dcaZtruth, crec);
} else {
registry.fill(HIST("Tracks/THnDCAxyBestGenSecWrongColl"), particle.pt(), particle.eta(), mcCollision.posZ(), atrack.bestDCAXY(), atrack.bestDCAZ());
registry.fill(HIST("Tracks/THnDCAxyBestGenTruthSecWrongColl"), particle.pt(), particle.eta(), mcCollision.posZ(), dcaXYtruth, dcaZtruth);
}
} else { // Primaries
if constexpr (has_reco_cent<C>) {
registry.fill(HIST("Tracks/Centrality/THnDCAxyBestGenPrimWrongColl"), particle.pt(), particle.eta(), mcCollision.posZ(), atrack.bestDCAXY(), atrack.bestDCAZ(), crec);
registry.fill(HIST("Tracks/Centrality/THnDCAxyBestGenTruthPrimWrongColl"), particle.pt(), particle.eta(), mcCollision.posZ(), dcaXYtruth, dcaZtruth, crec);
} else {
registry.fill(HIST("Tracks/THnDCAxyBestGenPrimWrongColl"), particle.pt(), particle.eta(), mcCollision.posZ(), atrack.bestDCAXY(), atrack.bestDCAZ());
registry.fill(HIST("Tracks/THnDCAxyBestGenTruthPrimWrongColl"), particle.pt(), particle.eta(), mcCollision.posZ(), dcaXYtruth, dcaZtruth);
}
}
}
Expand Down
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