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[PWGCF] add manual ck calculations #18342

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Merged
wenyaCern merged 6 commits into from
Oct 19, 2026
Merged

[PWGCF] add manual ck calculations #18342

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b6a5b9c
add manual ck calculations
Luzhiyongg Oct 18, 2026
b259c6f
Please consider the following formatting changes
alibuild Oct 18, 2026
0a07989
Merge pull request #32 from alibuild/alibot-cleanup-18342
Luzhiyongg Oct 18, 2026
f2be451
fix megalinter
Luzhiyongg Oct 18, 2026
a9141c3
Please consider the following formatting changes
alibuild Oct 18, 2026
b4ca88b
Merge pull request #33 from alibuild/alibot-cleanup-18342
Luzhiyongg Oct 18, 2026
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77 changes: 58 additions & 19 deletions PWGCF/Flow/Tasks/flowTask.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -243,6 +243,7 @@ struct FlowTask {
std::vector<float> nPt; // fraction of particles in each pT bin in one event
std::vector<std::shared_ptr<TProfile2D>> listNptV2;
std::vector<std::shared_ptr<TH2>> listPtX;
O2_DEFINE_CONFIGURABLE(cfgManualCk, bool, false, "Produce pt-pt variance")
} cfgAdditionObs;

ConfigurableAxis axisPt{"axisPt", {VARIABLE_WIDTH, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.2, 2.4, 2.6, 2.8, 3, 3.5, 4, 5, 6, 8, 10}, "pt axis for histograms"};
Expand Down Expand Up @@ -287,7 +288,7 @@ struct FlowTask {
std::vector<GFW::CorrConfig> corrconfigs;
GFWCorrConfigs gfwConfigs;
std::vector<GFW::CorrConfig> corrconfigsPtVn;
TAxis* fPtAxis;
TAxis* fPtAxis = nullptr;
TRandom3* fRndm = new TRandom3(0);
std::vector<std::pair<double, double>> etagapsPtPt;
std::vector<std::vector<std::shared_ptr<TProfile>>> bootstrapArray;
Expand Down Expand Up @@ -324,15 +325,15 @@ struct FlowTask {
double mMinSeconds{-1.};
std::unordered_map<int, TH2*> gHadronicRate;
ctpRateFetcher mRateFetcher;
TH2* gCurrentHadronicRate;
TH2* gCurrentHadronicRate = nullptr;
RCTFlagsChecker rctChecker{"CBT"};

// phi-EP correction
std::vector<TF1*> funcEff;
TH1D* hFindPtBin;
TF1* funcV2;
TF1* funcV3;
TF1* funcV4;
TH1D* hFindPtBin = nullptr;
TF1* funcV2 = nullptr;
TF1* funcV3 = nullptr;
TF1* funcV4 = nullptr;

void init(InitContext const&)
{
Expand Down Expand Up @@ -439,6 +440,13 @@ struct FlowTask {
registry.add("hPtA_afterDptCut", "p_{T} distribution", {HistType::kTH1D, {axisPt}});
registry.add("hPtB_afterDptCut", "p_{T} distribution", {HistType::kTH1D, {axisPt}});
}
if (cfgAdditionObs.cfgManualCk) {
registry.add("ptpt_1sub1_1sub3_2pc", "", {HistType::kTProfile, {axisIndependent}});
registry.add("pt_1sub1_1pc", "", {HistType::kTProfile, {axisIndependent}});
registry.add("pt_1sub1_2pc", "", {HistType::kTProfile, {axisIndependent}});
registry.add("pt_1sub3_1pc", "", {HistType::kTProfile, {axisIndependent}});
registry.add("pt_1sub3_2pc", "", {HistType::kTProfile, {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 @@ -910,45 +918,45 @@ struct FlowTask {
if (cfgUserIO.cfgAcceptance.value.empty() == false) {
mAcceptance = ccdb->getForTimeStamp<GFWWeights>(cfgUserIO.cfgAcceptance, timestamp);
if (mAcceptance)
LOGF(info, "Loaded acceptance weights from %s (%p)", cfgUserIO.cfgAcceptance.value.c_str(), (void*)mAcceptance);
LOGF(info, "Loaded acceptance weights from %s (%p)", cfgUserIO.cfgAcceptance.value.c_str(), static_cast<void*>(mAcceptance));
else
LOGF(warning, "Could not load acceptance weights from %s (%p)", cfgUserIO.cfgAcceptance.value.c_str(), (void*)mAcceptance);
LOGF(warning, "Could not load acceptance weights from %s (%p)", cfgUserIO.cfgAcceptance.value.c_str(), static_cast<void*>(mAcceptance));
}
if (cfgUserIO.cfgEfficiency.value.empty() == false) {
mEfficiency = ccdb->getForTimeStamp<TH1D>(cfgUserIO.cfgEfficiency, timestamp);
if (mEfficiency == nullptr) {
LOGF(fatal, "Could not load efficiency histogram for trigger particles from %s", cfgUserIO.cfgEfficiency.value.c_str());
}
LOGF(info, "Loaded efficiency histogram from %s (%p)", cfgUserIO.cfgEfficiency.value.c_str(), (void*)mEfficiency);
LOGF(info, "Loaded efficiency histogram from %s (%p)", cfgUserIO.cfgEfficiency.value.c_str(), static_cast<void*>(mEfficiency));
}
if (cfgUserIO.cfgEfficiencyForNch.value.empty() == false) {
mEfficiencyForNch = ccdb->getForTimeStamp<TH1D>(cfgUserIO.cfgEfficiencyForNch, timestamp);
if (mEfficiencyForNch == nullptr) {
LOGF(fatal, "Could not load efficiency histogram for trigger particles from %s", cfgUserIO.cfgEfficiencyForNch.value.c_str());
}
LOGF(info, "Loaded efficiency histogram from %s (%p)", cfgUserIO.cfgEfficiencyForNch.value.c_str(), (void*)mEfficiencyForNch);
LOGF(info, "Loaded efficiency histogram from %s (%p)", cfgUserIO.cfgEfficiencyForNch.value.c_str(), static_cast<void*>(mEfficiencyForNch));
}
if (cfgAdditionObs.cfgDptDisEnable && cfgAdditionObs.cfgDptDishEvAvgMeanPt.value.empty() == false) {
cfgAdditionObs.hEvAvgMeanPt = ccdb->getForTimeStamp<TH1D>(cfgAdditionObs.cfgDptDishEvAvgMeanPt, timestamp);
if (cfgAdditionObs.hEvAvgMeanPt == nullptr) {
LOGF(fatal, "Could not load mean pT histogram from %s", cfgAdditionObs.cfgDptDishEvAvgMeanPt.value.c_str());
}
LOGF(info, "Loaded mean pT histogram from %s (%p)", cfgAdditionObs.cfgDptDishEvAvgMeanPt.value.c_str(), (void*)cfgAdditionObs.hEvAvgMeanPt);
LOGF(info, "Loaded mean pT histogram from %s (%p)", cfgAdditionObs.cfgDptDishEvAvgMeanPt.value.c_str(), static_cast<void*>(cfgAdditionObs.hEvAvgMeanPt));
}
if (cfgAdditionObs.cfgDptDisEnable && cfgAdditionObs.cfgDptDisSelectionSwitch > kNoDptCut) {
if (cfgAdditionObs.cfgDptDisCutLow.value.empty() == false) {
cfgAdditionObs.fDptDisCutLow = ccdb->getForTimeStamp<TH1D>(cfgAdditionObs.cfgDptDisCutLow, timestamp);
if (cfgAdditionObs.fDptDisCutLow == nullptr) {
LOGF(fatal, "Could not load dptDis low cut histogram from %s", cfgAdditionObs.cfgDptDisCutLow.value.c_str());
}
LOGF(info, "Loaded dptDis low cut histogram from %s (%p)", cfgAdditionObs.cfgDptDisCutLow.value.c_str(), (void*)cfgAdditionObs.fDptDisCutLow);
LOGF(info, "Loaded dptDis low cut histogram from %s (%p)", cfgAdditionObs.cfgDptDisCutLow.value.c_str(), static_cast<void*>(cfgAdditionObs.fDptDisCutLow));
}
if (cfgAdditionObs.cfgDptDisCutHigh.value.empty() == false) {
cfgAdditionObs.fDptDisCutHigh = ccdb->getForTimeStamp<TH1D>(cfgAdditionObs.cfgDptDisCutHigh, timestamp);
if (cfgAdditionObs.fDptDisCutHigh == nullptr) {
LOGF(fatal, "Could not load dptDis high cut histogram from %s", cfgAdditionObs.cfgDptDisCutHigh.value.c_str());
}
LOGF(info, "Loaded dptDis high cut histogram from %s (%p)", cfgAdditionObs.cfgDptDisCutHigh.value.c_str(), (void*)cfgAdditionObs.fDptDisCutHigh);
LOGF(info, "Loaded dptDis high cut histogram from %s (%p)", cfgAdditionObs.cfgDptDisCutHigh.value.c_str(), static_cast<void*>(cfgAdditionObs.fDptDisCutHigh));
}
}
correctionsLoaded = true;
Expand Down Expand Up @@ -1289,6 +1297,10 @@ struct FlowTask {
double weffEventWithinGap08 = 0., weffEventSquareWithinGap08 = 0.;
double sumPtsquareWsquareWithinGap08 = 0., sumPtWsquareWithinGap08 = 0.;
double nTracksCorrected = 0;
double mpt_sub1 = 0;
double mpt_sub1_weffEv = 0;
double mpt_sub3 = 0;
double mpt_sub3_weffEv = 0;
int magnetfield = 0;
float independent = cent;
float nTracksUncorrected = 0;
Expand Down Expand Up @@ -1405,6 +1417,16 @@ struct FlowTask {
weffEventWithinGap08 += weff;
weffEventSquareWithinGap08 += weff * weff;
}
if (cfgAdditionObs.cfgManualCk) {
if (track.eta() >= etagapsPtPt[0].first && track.eta() <= etagapsPtPt[0].second) {
mpt_sub1 += weff * track.pt();
mpt_sub1_weffEv += weff;
}
if (track.eta() >= etagapsPtPt[2].first && track.eta() <= etagapsPtPt[2].second) {
mpt_sub3 += weff * track.pt();
mpt_sub3_weffEv += weff;
}
}
}
if (cfgUserIO.cfgConsistentEventFlag && consistentEventVector.size() == 6) { // o2-linter: disable=magic-number (size match)
acceptedTracks.nFull += 1;
Expand Down Expand Up @@ -1477,13 +1499,12 @@ struct FlowTask {
if (weffEvent) {
registry.fill(HIST("hMeanPt"), independent, ptSum / weffEvent, weffEvent);
}
if (weffEventWithinGap08)
if (weffEventWithinGap08) {
registry.fill(HIST("hMeanPtWithinGap08"), independent, ptSum_Gap08 / weffEventWithinGap08, cfgUserIO.cfgUserPtVnEvWeightEnabled ? weffEventWithinGap08 : 1.);
if (weffEventWithinGap08)
bootstrapArray[sampleIndex][kMeanPtWithinGap08]->Fill(independent, ptSum_Gap08 / weffEventWithinGap08, 1.0);
// c22_gap8 * pt_withGap8
if (weffEventWithinGap08)
// c22_gap8 * pt_withGap8
fillpTvnProfile(corrconfigs.at(7), ptSum_Gap08, weffEventWithinGap08, HIST("c22_gap08_Weff"), HIST("c22_gap08_trackMeanPt"), independent);
}
// PtVariance
if (weffEventDiffWithGap08) {
registry.fill(HIST("PtVariance_partA_WithinGap08"), independent,
Expand All @@ -1494,6 +1515,25 @@ struct FlowTask {
weffEventDiffWithGap08);
}

if (cfgAdditionObs.cfgManualCk) {
// 2pc event weight:
double ev2pc = mpt_sub1_weffEv * mpt_sub3_weffEv;
// manual pt-pt variance
if (mpt_sub1_weffEv) {
mpt_sub1 = mpt_sub1 / mpt_sub1_weffEv;
registry.fill(HIST("pt_1sub1_1pc"), independent, mpt_sub1, mpt_sub1_weffEv);
}
if (mpt_sub3_weffEv) {
mpt_sub3 = mpt_sub3 / mpt_sub3_weffEv;
registry.fill(HIST("pt_1sub3_1pc"), independent, mpt_sub3, mpt_sub3_weffEv);
}
if (mpt_sub1_weffEv && mpt_sub3_weffEv) {
registry.fill(HIST("ptpt_1sub1_1sub3_2pc"), independent, mpt_sub1 * mpt_sub3, ev2pc);
registry.fill(HIST("pt_1sub1_2pc"), independent, mpt_sub1, ev2pc);
registry.fill(HIST("pt_1sub3_2pc"), independent, mpt_sub3, ev2pc);
}
}

// v02
if (cfgAdditionObs.cfgV02Enabled && weffEventFrac > 0) {
for (auto ipt = 0; ipt < fPtAxis->GetNbins(); ipt++) {
Expand Down Expand Up @@ -1569,9 +1609,8 @@ struct FlowTask {
ptSum_Gap08 += mcParticle.pt();
count_Gap08 += 1.;
}
}
if (withinPtRef)
fGFW->Fill(mcParticle.eta(), fPtAxis->FindBin(mcParticle.pt()) - 1, mcParticle.phi(), 1., 1);
}
if (withinPtPOI)
fGFW->Fill(mcParticle.eta(), fPtAxis->FindBin(mcParticle.pt()) - 1, mcParticle.phi(), 1., 2);
if (withinPtPOI && withinPtRef)
Expand Down
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