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[PWGLF] CCDB gets Nch-dependent tracking eff. correction #11710

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Merged
abmodak merged 1 commit into from
Jun 21, 2025
+45 −6
Merged

[PWGLF] CCDB gets Nch-dependent tracking eff. correction #11710

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51 changes: 45 additions & 6 deletions PWGLF/Tasks/GlobalEventProperties/uccZdc.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -703,7 +703,7 @@ struct UccZdc {
return;
}

auto efficiency = ccdb->getForTimeStamp<TH1F>(paTHEff.value, foundBC.timestamp());
auto efficiency = ccdb->getForTimeStamp<TH2F>(paTHEff.value, foundBC.timestamp());
if (!efficiency) {
return;
}
Expand All @@ -723,9 +723,11 @@ struct UccZdc {
}

float pt{track.pt()};
int foundNchBin{efficiency->GetXaxis()->FindBin(glbTracks)};
int foundPtBin{efficiency->GetYaxis()->FindBin(pt)};
float effValue{1.0};
if (applyEff) {
effValue = efficiency->GetBinContent(efficiency->FindBin(pt));
effValue = efficiency->GetBinContent(foundNchBin, foundPtBin);
}
if (effValue > 0.) {
vecOneOverEff.emplace_back(1. / effValue);
Expand Down Expand Up @@ -756,10 +758,12 @@ struct UccZdc {
}

float pt{track.pt()};
int foundNchBin{efficiency->GetXaxis()->FindBin(glbTracks)};
int foundPtBin{efficiency->GetYaxis()->FindBin(pt)};
float effValue{1.};
float fdValue{1.};
if (applyEff) {
effValue = efficiency->GetBinContent(efficiency->FindBin(pt));
effValue = efficiency->GetBinContent(foundNchBin, foundPtBin);
fdValue = fd->GetBinContent(fd->FindBin(pt));
}
if (applyEff && !applyFD) {
Expand Down Expand Up @@ -870,7 +874,7 @@ struct UccZdc {
registry.fill(HIST("EvtsDivided"), 0);

// To use run-by-run efficiency
auto efficiency = ccdb->getForTimeStamp<TH1F>(paTHEff.value, foundBC.timestamp());
auto efficiency = ccdb->getForTimeStamp<TH2F>(paTHEff.value, foundBC.timestamp());
if (!efficiency) {
return;
}
Expand All @@ -880,20 +884,43 @@ struct UccZdc {
std::vector<float> vecOneOverEff;
// std::vector<float> wIs;
const auto& groupedTracks{simTracks.sliceBy(perCollision, collision.globalIndex())};

// Calculates the event's Nch to evaluate the efficiency
for (const auto& track : groupedTracks) {
// Track Selection
if (track.eta() < minEta || track.eta() > maxEta) {
continue;
}
if (track.pt() < minPt || track.pt() > maxPt) {
continue;
}
if (!track.isGlobalTrack()) {
continue;
}
nchRaw++;
}

// Calculates the event weight, W_k
for (const auto& track : groupedTracks) {
// Track Selection
if (track.eta() < minEta || track.eta() > maxEta) {
continue;
}
if (track.pt() < minPt || track.pt() > maxPt) {
continue;
}
if (!track.isGlobalTrack()) {
continue;
}

float pt{track.pt()};
int foundNchBin{efficiency->GetXaxis()->FindBin(nchRaw)};
int foundPtBin{efficiency->GetYaxis()->FindBin(pt)};
float effValue{1.};
float fdValue{1.};
nchRaw++;

if (applyEff) {
effValue = efficiency->GetBinContent(efficiency->FindBin(pt));
effValue = efficiency->GetBinContent(foundNchBin, foundPtBin);
fdValue = fd->GetBinContent(fd->FindBin(pt));
}
if ((effValue > 0.) && (fdValue > 0.)) {
Expand Down Expand Up @@ -987,6 +1014,12 @@ struct UccZdc {
const auto& groupedTracks{simTracks.sliceBy(perCollision, collision.globalIndex())};
for (const auto& track : groupedTracks) {
// Track Selection
if (track.eta() < minEta || track.eta() > maxEta) {
continue;
}
if (track.pt() < minPt || track.pt() > maxPt) {
continue;
}
if (!track.isGlobalTrack()) {
continue;
}
Expand All @@ -998,6 +1031,12 @@ struct UccZdc {

for (const auto& track : groupedTracks) {
// Track Selection
if (track.eta() < minEta || track.eta() > maxEta) {
continue;
}
if (track.pt() < minPt || track.pt() > maxPt) {
continue;
}
if (!track.isGlobalTrack()) {
continue;
}
Expand Down
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