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[PWGCF] add deltaPt corr #13660

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Merged
victor-gonzalez merged 1 commit into from
Nov 3, 2025
Merged

[PWGCF] add deltaPt corr #13660

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40 changes: 40 additions & 0 deletions PWGCF/Flow/Tasks/flowTask.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -155,6 +155,13 @@ struct FlowTask {
O2_DEFINE_CONFIGURABLE(cfgTPCPhiCutPtMin, float, 2.0f, "start point of phi-pt cut")
TF1* fPhiCutLow = nullptr;
TF1* fPhiCutHigh = nullptr;
// for deltaPt/<pT> vs c22 vs centrality
O2_DEFINE_CONFIGURABLE(cfgDptDisEnable, bool, false, "Produce deltaPt/meanPt vs c22 vs centrality")
O2_DEFINE_CONFIGURABLE(cfgDptDisCorrConfigIndex, int, 7, "Index in CorrConfig, this decide which correlation is filled")
TH1D* hEvAvgMeanPt = nullptr;
O2_DEFINE_CONFIGURABLE(cfgDptDishEvAvgMeanPt, std::string, "", "CCDB path to hMeanPt object")
ConfigurableAxis cfgDptDisAxisCorr{"cfgDptDisAxisCorr", {50, 0., 0.005}, "pt axis for histograms"};
ConfigurableAxis cfgDptDisAxisNormal{"cfgDptDisAxisNormal", {200, -1., 1.}, "normalized axis"};
} cfgFuncParas;

ConfigurableAxis axisPtHist{"axisPtHist", {100, 0., 10.}, "pt axis for histograms"};
Expand Down Expand Up @@ -316,6 +323,9 @@ struct FlowTask {
registry.add("c22_gap08_trackMeanPt", "", {HistType::kTProfile, {axisIndependent}});
registry.add("PtVariance_partA_WithinGap08", "", {HistType::kTProfile, {axisIndependent}});
registry.add("PtVariance_partB_WithinGap08", "", {HistType::kTProfile, {axisIndependent}});
if (cfgFuncParas.cfgDptDisEnable) {
registry.add("hNormDeltaPt_Corr_X", " #delta p_{T}/[p_{T}]; Corr; X", {HistType::kTH3D, {cfgFuncParas.cfgDptDisAxisNormal, cfgFuncParas.cfgDptDisAxisCorr, axisIndependent}});
}
if (doprocessMCGen) {
registry.add("MCGen/MChPhi", "#phi distribution", {HistType::kTH1D, {axisPhi}});
registry.add("MCGen/MChEta", "#eta distribution", {HistType::kTH1D, {axisEta}});
Expand Down Expand Up @@ -593,6 +603,25 @@ struct FlowTask {
return;
}

template <char... chars>
void fillDeltaPtvsCorr(const GFW::CorrConfig& corrconf, const double& sum_pt, const double& WeffEvent, const ConstStr<chars...>& histo, const double& cent)
{
double dnx, val;
dnx = fGFW->Calculate(corrconf, 0, kTRUE).real();
if (dnx == 0)
return;
if (!corrconf.pTDif) {
val = fGFW->Calculate(corrconf, 0, kFALSE).real() / dnx;
if (std::fabs(val) < 1) {
double meanPt = sum_pt / WeffEvent;
double deltaPt = meanPt - cfgFuncParas.hEvAvgMeanPt->GetBinContent(cfgFuncParas.hEvAvgMeanPt->FindBin(cent));
registry.fill(histo, deltaPt / meanPt, val, cent, dnx * WeffEvent);
}
return;
}
return;
}

template <DataType dt>
void fillFC(const GFW::CorrConfig& corrconf, const double& cent, const double& rndm)
{
Expand Down Expand Up @@ -666,6 +695,13 @@ struct FlowTask {
}
LOGF(info, "Loaded efficiency histogram from %s (%p)", cfgEfficiency.value.c_str(), (void*)mEfficiency);
}
if (cfgFuncParas.cfgDptDisEnable && cfgFuncParas.cfgDptDishEvAvgMeanPt.value.empty() == false) {
cfgFuncParas.hEvAvgMeanPt = ccdb->getForTimeStamp<TH1D>(cfgFuncParas.cfgDptDishEvAvgMeanPt, timestamp);
if (cfgFuncParas.hEvAvgMeanPt == nullptr) {
LOGF(fatal, "Could not load mean pT histogram from %s", cfgFuncParas.cfgDptDishEvAvgMeanPt.value.c_str());
}
LOGF(info, "Loaded mean pT histogram from %s (%p)", cfgFuncParas.cfgDptDishEvAvgMeanPt.value.c_str(), (void*)cfgFuncParas.hEvAvgMeanPt);
}
correctionsLoaded = true;
}

Expand Down Expand Up @@ -1064,6 +1100,10 @@ struct FlowTask {
}
registry.fill(HIST("hTrackCorrection2d"), tracks.size(), nTracksCorrected);

if (cfgFuncParas.cfgDptDisEnable) {
fillDeltaPtvsCorr(corrconfigs.at(cfgFuncParas.cfgDptDisCorrConfigIndex), ptSum, weffEvent, HIST("hNormDeltaPt_Corr_X"), independent);
}

double weffEventDiffWithGap08 = weffEventWithinGap08 * weffEventWithinGap08 - weffEventSquareWithinGap08;
// MeanPt
if (weffEvent) {
Expand Down
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