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add DecError corrections in TOF lumi post proc. #2611

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Merged
ercolessi merged 1 commit into from
Oct 16, 2025
Merged

add DecError corrections in TOF lumi post proc. #2611

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3 changes: 2 additions & 1 deletion Modules/TOF/include/TOF/PostProcessingLuminometer.h
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,7 @@ class PostProcessingLuminometer final : public quality_control::postprocessing::
std::string mCCDBPath = "TOF/MO/TaskDigits/";
std::string mMOEfficiency = "OrbitVsCrate";
std::string mMOActiveChannels = "HitMap";
std::string mMOdecodingErrors = "DecodingErrors";
std::string mMOMultiplicity = "Multiplicity/Integrated";
std::shared_ptr<TH1F> mHistoOrbitsInTFEfficiency = nullptr;
std::shared_ptr<TH1F> mHistoLuminometer = nullptr;
Expand All @@ -73,4 +74,4 @@ class PostProcessingLuminometer final : public quality_control::postprocessing::

} // namespace o2::quality_control_modules::tof

#endif // QUALITYCONTROL_POSTPROCESSINGLuminometer_H
#endif // QUALITYCONTROL_POSTPROCESSINGLuminometer_H
30 changes: 29 additions & 1 deletion Modules/TOF/src/PostProcessingLuminometer.cxx
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Expand Up @@ -89,10 +89,31 @@ void PostProcessingLuminometer::update(Trigger t, framework::ServiceRegistryRef)
auto moEfficiency = mDatabase->retrieveMO(mCCDBPath, mMOEfficiency, t.timestamp, t.activity);
auto moActiveChannels = mDatabase->retrieveMO(mCCDBPath, mMOActiveChannels, t.timestamp, t.activity);
auto moMultiplicity = mDatabase->retrieveMO(mCCDBPath, mMOMultiplicity, t.timestamp, t.activity);
auto moDecodingErrors = mDatabase->retrieveMO(mCCDBPath, mMOdecodingErrors, t.timestamp, t.activity);

float ROeff = 1.;
float hitMult = 0.;
float activeCh = 1.;
float decodingEff = 1.;

// Decoding Errors
if (moDecodingErrors) {
TH2D* htemp = static_cast<TH2D*>(moDecodingErrors->getObject());
TH1D* hproj = (TH1D*)htemp->ProjectionY();
hproj->SetName("decodErr_pro");
if (hproj->GetBinContent(1) > 0) {
hproj->Scale(0.1 / hproj->GetBinContent(1)); // normalize to the first bin content and divide by 10 (TRMs)
for (int ibin = 3; ibin < hproj->GetNbinsX() - 1; ibin++) { // count on TRM errors (skip last bin = DRM errors)
decodingEff -= hproj->GetBinContent(ibin);
}
if (decodingEff < 1E-2) {
ILOG(Warning) << "decodingEff = " << decodingEff << " -> it is too low? Why? ... skipping such a correction " << ENDM;
decodingEff = 1.;
}
}
} else {
ILOG(Warning) << "Did not find MO " << moDecodingErrors << " in path " << mCCDBPath << ENDM;
}

// Readout efficiency
TH2F* moHEfficiency = static_cast<TH2F*>(moEfficiency ? moEfficiency->getObject() : nullptr);
Expand Down Expand Up @@ -142,7 +163,14 @@ void PostProcessingLuminometer::update(Trigger t, framework::ServiceRegistryRef)
ILOG(Warning) << "Did not find MO " << mMOMultiplicity << " in path " << mCCDBPath << ENDM;
}

mHistoLuminometer->Fill(hitMult / (activeCh * ROeff));
mHistoLuminometer->Fill(hitMult / (activeCh * ROeff * decodingEff));
ILOG(Info) << "____________________" << ENDM;
ILOG(Info) << "Luminometer summary " << ENDM;
ILOG(Info) << "decodingEff = " << decodingEff << ENDM;
ILOG(Info) << "activeCh = " << activeCh << ENDM;
ILOG(Info) << "ROeff = " << ROeff << ENDM;
ILOG(Info) << "hitMult = " << hitMult << ENDM;
ILOG(Info) << "____________________" << ENDM;
}

void PostProcessingLuminometer::finalize(Trigger, framework::ServiceRegistryRef)
Expand Down