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[Common] Delta-pt light ion event cuts #13980

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ddobrigk merged 2 commits into from
Dec 2, 2025
Merged

[Common] Delta-pt light ion event cuts #13980

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b837e96
light ion flow event cuts (def OO pass1)
joachimckh Nov 26, 2025
0cac86d
clang-format
joachimckh Nov 26, 2025
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219 changes: 214 additions & 5 deletions Common/TableProducer/eseTableProducer.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@
#include <Framework/OutputObjHeader.h>
#include <Framework/runDataProcessing.h>

#include <TF1.h>
#include <TMath.h>

#include <chrono>
Expand Down Expand Up @@ -110,15 +111,68 @@ struct EseTableProducer {
bool correctionsLoaded = false;
} cfg;

TF1* fMultPVCutLow = nullptr;
TF1* fMultPVCutHigh = nullptr;
TF1* fMultCutLow = nullptr;
TF1* fMultCutHigh = nullptr;
TF1* fMultPVGlobalCutHigh = nullptr;
TF1* fMultGlobalV0ACutLow = nullptr;
TF1* fMultGlobalV0ACutHigh = nullptr;
TF1* fMultGlobalT0ACutLow = nullptr;
TF1* fMultGlobalT0ACutHigh = nullptr;

TF1* fPtDepDCAxy = nullptr;

float vtxZlow = -10.0, vtxZup = 10.0;
int nchbins = 300;
float nchlow = 0;
float nchup = 3000;
std::vector<double> multGlobalCorrCutPars;
std::vector<double> multPVCorrCutPars;
std::vector<double> multGlobalPVCorrCutPars;
std::vector<double> multGlobalV0ACutPars;
std::vector<double> multGlobalT0ACutPars;

Configurable<float> cfgVtxZ{"cfgVtxZ", 10.0f, "max z vertex position"};
Configurable<float> cfgEta{"cfgEta", 0.8f, "max eta"};
Configurable<float> cfgPtmin{"cfgPtmin", 0.2f, "min pt"};
Configurable<float> cfgPtmax{"cfgPtmax", 5.0f, "max pt"};
Configurable<float> cfgPtmax{"cfgPtmax", 3.0f, "max pt"};
Configurable<float> cfgChi2PrITSCls{"cfgChi2PrITSCls", 4.0f, "max chi2 per ITS cluster"};
Configurable<float> cfgChi2PrTPCCls{"cfgChi2PrTPCCls", 2.5f, "max chi2 per TPC cluster"};
Configurable<float> cfgDCAz{"cfgDCAz", 2.0f, "max DCAz cut"};
Configurable<bool> cfgDoOccupancySel{"cfgDoOccupancySel", true, "enable occupancy selection"};
Configurable<int> cfgOccupancySelection{"cfgOccupancySelection", 2000, "Max occupancy selection, -999 to disable"};
Configurable<bool> cfgUseAdditionalEventCut{"cfgUseAdditionalEventCut", false, "Use additional event cut on mult correlations"};
Configurable<bool> cfgMultCut{"cfgMultCut", true, "Use additional event cut on mult correlations"};
Configurable<bool> cfgTVXinTRD{"cfgTVXinTRD", true, "Use kTVXinTRD (reject TRD triggered events)"};
Configurable<bool> cfgNoSameBunchPileupCut{"cfgNoSameBunchPileupCut", true, "kNoSameBunchPileupCut"};
Configurable<bool> cfgIsGoodZvtxFT0vsPV{"cfgIsGoodZvtxFT0vsPV", true, "kIsGoodZvtxFT0vsPV"};
Configurable<bool> cfgNoCollInTimeRangeStandard{"cfgNoCollInTimeRangeStandard", true, "kNoCollInTimeRangeStandard"};
Configurable<bool> cfgIsVertexITSTPC{"cfgIsVertexITSTPC", true, "Selects collisions with at least one ITS-TPC track"};
Configurable<bool> cfgIsGoodITSLayersAll{"cfgIsGoodITSLayersAll", true, "kIsGoodITSLayersAll"};
Configurable<std::string> cfgEfficiency{"cfgEfficiency", "", "CCDB path to efficiency object"};

// Cut Configurables
Configurable<std::vector<double>> cfgMultGlobalCutPars{"cfgMultGlobalCutPars", std::vector<double>{2272.16, -76.6932, 1.01204, -0.00631545, 1.59868e-05, 136.336, -4.97006, 0.121199, -0.0015921, 7.66197e-06}, "Global vs FT0C multiplicity cut parameter values"};
Configurable<std::vector<double>> cfgMultPVCutPars{"cfgMultPVCutPars", std::vector<double>{3074.43, -106.192, 1.46176, -0.00968364, 2.61923e-05, 182.128, -7.43492, 0.193901, -0.00256715, 1.22594e-05}, "PV vs FT0C multiplicity cut parameter values"};
Configurable<std::vector<double>> cfgMultGlobalPVCutPars{"cfgMultGlobalPVCutPars", std::vector<double>{-0.223013, 0.715849, 0.664242, 0.0829653, -0.000503733, 1.21185e-06}, "Global vs PV multiplicity cut parameter values"};
Configurable<std::string> cfgMultCorrHighCutFunction{"cfgMultCorrHighCutFunction", "[0] + [1]*x + [2]*x*x + [3]*x*x*x + [4]*x*x*x*x + 3.*([5] + [6]*x + [7]*x*x + [8]*x*x*x + [9]*x*x*x*x)", "Functional for multiplicity correlation cut"};
Configurable<std::string> cfgMultCorrLowCutFunction{"cfgMultCorrLowCutFunction", "[0] + [1]*x + [2]*x*x + [3]*x*x*x + [4]*x*x*x*x - 3.*([5] + [6]*x + [7]*x*x + [8]*x*x*x + [9]*x*x*x*x)", "Functional for multiplicity correlation cut"};
Configurable<std::string> cfgMultGlobalPVCorrCutFunction{"cfgMultGlobalPVCorrCutFunction", "[0] + [1]*x + 3*([2] + [3]*x + [4]*x*x + [5]*x*x*x)", "Functional for global vs pv multiplicity correlation cut"};
struct : ConfigurableGroup {
Configurable<std::string> cfgMultGlobalASideCorrCutFunction{"cfgMultGlobalASideCorrCutFunction", "[0]+[1]*x+[2]*x*x+[3]*x*x*x+[4]*x*x*x*x + [10]*([5]+[6]*x+[7]*x*x+[8]*x*x*x+[9]*x*x*x*x)", "Functional for global vs V0A multiplicity low correlation cut"};
Configurable<std::vector<double>> cfgMultGlobalV0ACutPars{"cfgMultGlobalV0ACutPars", std::vector<double>{567.785, 172.715, 0.77888, -0.00693466, 1.40564e-05, 679.853, 66.8068, -0.444332, 0.00115002, -4.92064e-07}, "Global vs FV0A multiplicity cut parameter values"};
Configurable<std::vector<double>> cfgMultGlobalT0ACutPars{"cfgMultGlobalT0ACutPars", std::vector<double>{241.618, 61.8402, 0.348049, -0.00306078, 6.20357e-06, 315.235, 29.1491, -0.188639, 0.00044528, -9.08912e-08}, "Global vs FT0A multiplicity cut parameter values"};
Configurable<float> cfgGlobalV0ALowSigma{"cfgGlobalV0ALowSigma", -3.0f, "Number of sigma deviations below expected value in global vs V0A correlation"};
Configurable<float> cfgGlobalV0AHighSigma{"cfgGlobalV0AHighSigma", 4.0f, "Number of sigma deviations above expected value in global vs V0A correlation"};
Configurable<float> cfgGlobalT0ALowSigma{"cfgGlobalT0ALowSigma", -3.0f, "Number of sigma deviations below expected value in global vs T0A correlation"};
Configurable<float> cfgGlobalT0AHighSigma{"cfgGlobalT0AHighSigma", 4.0f, "Number of sigma deviations above expected value in global vs T0A correlation"};
} cfgGlobalAsideCorrCuts;
Configurable<std::string> cfgDCAxy{"cfgDCAxy", "(0.0026+0.005/(x^1.01))", "Functional form of pt-dependent DCAxy cut"};
Configurable<float> cfgDCAxyNSigma{"cfgDCAxyNSigma", 7.0f, "Cut on number of sigma deviations from expected DCA in the transverse direction"};

//

// o2::framework::expressions::Filter collisionFilter = nabs(aod::collision::posZ) < cfgVtxZ;
o2::framework::expressions::Filter trackFilter = nabs(aod::track::eta) < cfgEta && aod::track::pt > cfgPtmin&& aod::track::pt < cfgPtmax && ((requireGlobalTrackInFilter()) || (aod::track::isGlobalTrackSDD == static_cast<uint8_t>(true))) && (aod::track::itsChi2NCl < cfgChi2PrITSCls) && (aod::track::tpcChi2NCl < cfgChi2PrTPCCls) && nabs(aod::track::dcaZ) < cfgDCAz;

Expand All @@ -127,8 +181,23 @@ struct EseTableProducer {

void init(o2::framework::InitContext&)
{

LOGF(info, "ESETable::init()");
EseTableProducer::vtxZlow = -cfgVtxZ;
EseTableProducer::vtxZup = cfgVtxZ;
EseTableProducer::multPVCorrCutPars = cfgMultPVCutPars;
EseTableProducer::multGlobalCorrCutPars = cfgMultGlobalCutPars;
EseTableProducer::multGlobalV0ACutPars = cfgGlobalAsideCorrCuts.cfgMultGlobalV0ACutPars;
EseTableProducer::multGlobalT0ACutPars = cfgGlobalAsideCorrCuts.cfgMultGlobalT0ACutPars;
EseTableProducer::multGlobalPVCorrCutPars = cfgMultGlobalPVCutPars;

AxisSpec t0cAxis = {1000, 0, 10000, "N_{ch} (T0C)"};
AxisSpec t0aAxis = {300, 0, 30000, "N_{ch} (T0A)"};
AxisSpec v0aAxis = {800, 0, 80000, "N_{ch} (V0A)"};
std::vector<double> nchbinning;
int nchskip = (nchup - nchlow) / nchbins;
for (int i = 0; i <= nchbins; ++i) {
nchbinning.push_back(nchskip * i + nchlow + 0.5);
}

registry.add("hEventCounter", "event status;event status;entries", {HistType::kTH1F, {{4, 0.0, 4.0}}});
registry.add("hESEstat", "ese status;ese status;entries", {HistType::kTH1F, {{4, 0.0, 4.0}}});
Expand All @@ -151,6 +220,52 @@ struct EseTableProducer {
weightsFFit->setResolution(cfgnResolution);
weightsFFit->setQnType(veccfg);
weightsFFit->init();

fPtDepDCAxy = new TF1("ptDepDCAxy", Form("[0]*%s", cfgDCAxy->c_str()), 0.001, 100);
fPtDepDCAxy->SetParameter(0, cfgDCAxyNSigma);
LOGF(info, "DCAxy pt-dependence function: %s", Form("[0]*%s", cfgDCAxy->c_str()));
if (cfgUseAdditionalEventCut) {
fMultPVCutLow = new TF1("fMultPVCutLow", cfgMultCorrLowCutFunction->c_str(), 0, 100);
fMultPVCutLow->SetParameters(&(EseTableProducer::multPVCorrCutPars[0]));
fMultPVCutHigh = new TF1("fMultPVCutHigh", cfgMultCorrHighCutFunction->c_str(), 0, 100);
fMultPVCutHigh->SetParameters(&(EseTableProducer::multPVCorrCutPars[0]));
fMultCutLow = new TF1("fMultCutLow", cfgMultCorrLowCutFunction->c_str(), 0, 100);
fMultCutLow->SetParameters(&(EseTableProducer::multGlobalCorrCutPars[0]));
fMultCutHigh = new TF1("fMultCutHigh", cfgMultCorrHighCutFunction->c_str(), 0, 100);
fMultCutHigh->SetParameters(&(EseTableProducer::multGlobalCorrCutPars[0]));
fMultPVGlobalCutHigh = new TF1("fMultPVGlobalCutHigh", cfgMultGlobalPVCorrCutFunction->c_str(), 0, nchbinning.back());
fMultPVGlobalCutHigh->SetParameters(&(EseTableProducer::multGlobalPVCorrCutPars[0]));

LOGF(info, "Global V0A function: %s in range 0-%g", cfgGlobalAsideCorrCuts.cfgMultGlobalASideCorrCutFunction->c_str(), v0aAxis.binEdges.back());
fMultGlobalV0ACutLow = new TF1("fMultGlobalV0ACutLow", cfgGlobalAsideCorrCuts.cfgMultGlobalASideCorrCutFunction->c_str(), 0, v0aAxis.binEdges.back());
for (std::size_t i = 0; i < EseTableProducer::multGlobalV0ACutPars.size(); ++i)
fMultGlobalV0ACutLow->SetParameter(i, EseTableProducer::multGlobalV0ACutPars[i]);
fMultGlobalV0ACutLow->SetParameter(EseTableProducer::multGlobalV0ACutPars.size(), cfgGlobalAsideCorrCuts.cfgGlobalV0ALowSigma);
for (int i = 0; i < fMultGlobalV0ACutLow->GetNpar(); ++i)
LOGF(info, "fMultGlobalV0ACutLow par %d = %g", i, fMultGlobalV0ACutLow->GetParameter(i));

fMultGlobalV0ACutHigh = new TF1("fMultGlobalV0ACutHigh", cfgGlobalAsideCorrCuts.cfgMultGlobalASideCorrCutFunction->c_str(), 0, v0aAxis.binEdges.back());
for (std::size_t i = 0; i < EseTableProducer::multGlobalV0ACutPars.size(); ++i)
fMultGlobalV0ACutHigh->SetParameter(i, EseTableProducer::multGlobalV0ACutPars[i]);
fMultGlobalV0ACutHigh->SetParameter(EseTableProducer::multGlobalV0ACutPars.size(), cfgGlobalAsideCorrCuts.cfgGlobalV0AHighSigma);
for (int i = 0; i < fMultGlobalV0ACutHigh->GetNpar(); ++i)
LOGF(info, "fMultGlobalV0ACutHigh par %d = %g", i, fMultGlobalV0ACutHigh->GetParameter(i));

LOGF(info, "Global T0A function: %s", cfgGlobalAsideCorrCuts.cfgMultGlobalASideCorrCutFunction->c_str());
fMultGlobalT0ACutLow = new TF1("fMultGlobalT0ACutLow", cfgGlobalAsideCorrCuts.cfgMultGlobalASideCorrCutFunction->c_str(), 0, t0aAxis.binEdges.back());
for (std::size_t i = 0; i < EseTableProducer::multGlobalT0ACutPars.size(); ++i)
fMultGlobalT0ACutLow->SetParameter(i, EseTableProducer::multGlobalT0ACutPars[i]);
fMultGlobalT0ACutLow->SetParameter(EseTableProducer::multGlobalT0ACutPars.size(), cfgGlobalAsideCorrCuts.cfgGlobalT0ALowSigma);
for (int i = 0; i < fMultGlobalT0ACutLow->GetNpar(); ++i)
LOGF(info, "fMultGlobalT0ACutLow par %d = %g", i, fMultGlobalT0ACutLow->GetParameter(i));

fMultGlobalT0ACutHigh = new TF1("fMultGlobalT0ACutHigh", cfgGlobalAsideCorrCuts.cfgMultGlobalASideCorrCutFunction->c_str(), 0, t0aAxis.binEdges.back());
for (std::size_t i = 0; i < EseTableProducer::multGlobalT0ACutPars.size(); ++i)
fMultGlobalT0ACutHigh->SetParameter(i, EseTableProducer::multGlobalT0ACutPars[i]);
fMultGlobalT0ACutHigh->SetParameter(EseTableProducer::multGlobalT0ACutPars.size(), cfgGlobalAsideCorrCuts.cfgGlobalT0AHighSigma);
for (int i = 0; i < fMultGlobalT0ACutHigh->GetNpar(); ++i)
LOGF(info, "fMultGlobalT0ACutHigh par %d = %g", i, fMultGlobalT0ACutHigh->GetParameter(i));
}
}

void initCCDB(aod::BCsWithTimestamps::iterator const& bc)
Expand Down Expand Up @@ -329,16 +444,111 @@ struct EseTableProducer {
}
PROCESS_SWITCH(EseTableProducer, processESE, "process q vectors to calculate reduced q-vector", true);

void processMeanPt(soa::Join<aod::Collisions, aod::EvSels, aod::Mults, aod::CentFT0Cs, aod::CentFT0CVariant1s, aod::CentFT0Ms, aod::CentNTPVs, aod::CentNGlobals, aod::CentMFTs>::iterator const& collision, aod::BCsWithTimestamps const&, GFWTracks const& tracks)
struct XAxis {
float centrality;
int64_t multiplicity;
};

template <typename TCollision>
bool eventSelected(TCollision collision, const int& multTrk, const float& centrality)
{
if (cfgTVXinTRD) {
if (collision.alias_bit(kTVXinTRD)) {
return 0;
}
}
if (cfgNoSameBunchPileupCut) {
if (!collision.selection_bit(o2::aod::evsel::kNoSameBunchPileup)) {
return 0;
}
}
if (cfgIsGoodZvtxFT0vsPV) {
if (!collision.selection_bit(o2::aod::evsel::kIsGoodZvtxFT0vsPV)) {
return 0;
}
}
if (cfgNoCollInTimeRangeStandard) {
if (!collision.selection_bit(o2::aod::evsel::kNoCollInTimeRangeStandard)) {
return 0;
}
}

if (cfgIsVertexITSTPC) {
if (!collision.selection_bit(o2::aod::evsel::kIsVertexITSTPC)) {
return 0;
}
}

if (cfgIsGoodITSLayersAll) {
if (!collision.selection_bit(o2::aod::evsel::kIsGoodITSLayersAll)) {
return 0;
}
}

float vtxz = -999;
if (collision.numContrib() > 1) {
vtxz = collision.posZ();
float zRes = std::sqrt(collision.covZZ());
float minZRes = 0.25;
int minNContrib = 20;
if (zRes > minZRes && collision.numContrib() < minNContrib)
vtxz = -999;
}
auto multNTracksPV = collision.multNTracksPV();

if (vtxz > EseTableProducer::vtxZup || vtxz < EseTableProducer::vtxZlow)
return 0;

if (cfgMultCut) {
if (multNTracksPV < fMultPVCutLow->Eval(centrality))
return 0;
if (multNTracksPV > fMultPVCutHigh->Eval(centrality))
return 0;
if (multTrk < fMultCutLow->Eval(centrality))
return 0;
if (multTrk > fMultCutHigh->Eval(centrality))
return 0;
if (multTrk > fMultPVGlobalCutHigh->Eval(collision.multNTracksPV()))
return 0;

if (!(cfgGlobalAsideCorrCuts.cfgMultGlobalASideCorrCutFunction->empty()) && static_cast<double>(collision.multFV0A()) < fMultGlobalV0ACutLow->Eval(multTrk))
return 0;
if (!(cfgGlobalAsideCorrCuts.cfgMultGlobalASideCorrCutFunction->empty()) && static_cast<double>(collision.multFV0A()) > fMultGlobalV0ACutHigh->Eval(multTrk))
return 0;
if (!(cfgGlobalAsideCorrCuts.cfgMultGlobalASideCorrCutFunction->empty()) && static_cast<double>(collision.multFT0A()) < fMultGlobalT0ACutLow->Eval(multTrk))
return 0;
if (!(cfgGlobalAsideCorrCuts.cfgMultGlobalASideCorrCutFunction->empty()) && static_cast<double>(collision.multFT0A()) > fMultGlobalT0ACutHigh->Eval(multTrk))
return 0;
}
return 1;
}

std::vector<float> meanPt{-1};
void processMeanPt(soa::Join<aod::Collisions, aod::EvSels, aod::Mults, aod::CentFT0Cs, aod::CentFT0CVariant1s, aod::CentFT0Ms, aod::CentNTPVs, aod::CentNGlobals, aod::CentMFTs>::iterator const& collision, aod::BCsWithTimestamps const&, GFWTracks const& tracks)
{
std::vector<float> meanPt{-999};
std::vector<float> meanPtShape{-1};
if (collision.posZ() < -cfgVtxZ || collision.posZ() > cfgVtxZ) {
meanPts(meanPt);
meanPtShapes(meanPtShape);
return;
}
if (!collision.sel8()) {
meanPts(meanPt);
meanPtShapes(meanPtShape);
return;
}
if (cfgDoOccupancySel) {
int occupancy = collision.trackOccupancyInTimeRange();
if (occupancy < 0 || occupancy > cfgOccupancySelection) {
meanPts(meanPt);
meanPtShapes(meanPtShape);
return;
}
}

const XAxis xaxis{collision.centFT0C(), tracks.size()};
if (cfgUseAdditionalEventCut && !eventSelected(collision, xaxis.multiplicity, xaxis.centrality))
return;

registry.fill(HIST("hMeanPtStat"), 0.5);
const auto centrality = collision.centFT0C();
Expand All @@ -363,7 +573,6 @@ struct EseTableProducer {
}
}
}

meanPts(meanPt);
meanPtShapes(meanPtShape);
}
Expand Down
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