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[PWGDQ] Add MC truth signal for prompt/non-prompt polarization studies #14139

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Merged
mcoquet642 merged 1 commit into from
Dec 10, 2025
+11 −0
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[PWGDQ] Add MC truth signal for prompt/non-prompt polarization studies #14139

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11 changes: 11 additions & 0 deletions PWGDQ/Core/HistogramsLibrary.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -990,6 +990,17 @@
hm->AddHistogram(histClass, "Coschi_randomPhi_toward", "", false, 40, -1.0, 1.0, VarManager::kMCCosChi_randomPhi_toward, 0, 0, 0, -1, 0, 0, 0, -1, "", "", "", -1, VarManager::kMCWeight_randomPhi_toward);
hm->AddHistogram(histClass, "Coschi_randomPhi_away", "", false, 40, -1.0, 1.0, VarManager::kMCCosChi_randomPhi_away, 0, 0, 0, -1, 0, 0, 0, -1, "", "", "", -1, VarManager::kMCWeight_randomPhi_away);
}
if (!groupStr.CompareTo("polarization-pseudoproper-gen")) {
int varspTHE[3] = {VarManager::kMCPt, VarManager::kMCCosThetaHE, VarManager::kMCVertexingTauxyProjected};
int varspTCS[3] = {VarManager::kMCPt, VarManager::kMCCosThetaCS, VarManager::kMCVertexingTauxyProjected};
int varspTRM[3] = {VarManager::kMCPt, VarManager::kMCCosThetaRM, VarManager::kMCVertexingTauxyProjected};
int bins[3] = {20, 20, 1000};
double xmin[3] = {0., -1., -0.5};
double xmax[3] = {20., 1., 0.5};
hm->AddHistogram(histClass, "Pt_cosThetaHE_Tauxy", "", 3, varspTHE, bins, xmin, xmax, 0, -1, kFALSE);
hm->AddHistogram(histClass, "Pt_cosThetaCS_Tauxy", "", 3, varspTCS, bins, xmin, xmax, 0, -1, kFALSE);
hm->AddHistogram(histClass, "Pt_cosThetaRM_Tauxy", "", 3, varspTRM, bins, xmin, xmax, 0, -1, kFALSE);
}
if (!groupStr.CompareTo("pair")) {
if (subGroupStr.Contains("cepf")) {
hm->AddHistogram(histClass, "Mass", "", false, 300, 0.0, 12.0, VarManager::kMass);
Expand Down Expand Up @@ -2111,7 +2122,7 @@
LOG(fatal) << "histClass field should be an array of strings, e.g. [class1, class2]";
return false;
}
for (auto& v : hist->FindMember("histClass")->value.GetArray()) {

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[const-ref-in-for-loop] 

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if (!v.IsString()) {
LOG(fatal) << "histClass field should be an array of strings, e.g. [class1, class2]";
return false;
Expand Down Expand Up @@ -2267,7 +2278,7 @@
}
}
if (isTHn) {
for (auto& v : hist->FindMember("vars")->value.GetArray()) {

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if (VarManager::fgVarNamesMap.find(v.GetString()) == VarManager::fgVarNamesMap.end()) {
LOG(fatal) << "Bad variable in vars (" << v.GetString() << ") specified for histogram";
return false;
Expand Down Expand Up @@ -2330,7 +2341,7 @@

// create an array of strings to store the different histogram classes
std::vector<const char*> histClasses;
for (auto& v : hist.FindMember("histClass")->value.GetArray()) {

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histClasses.push_back(v.GetString());
}
const char* title = hist.FindMember("title")->value.GetString();
Expand All @@ -2341,7 +2352,7 @@

int* vars = new int[nDimensions];
int iDim = 0;
for (auto& v : hist.FindMember("vars")->value.GetArray()) {

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LOG(debug) << "iDim " << iDim << ": " << v.GetString();
vars[iDim++] = VarManager::fgVarNamesMap[v.GetString()];
}
Expand All @@ -2355,27 +2366,27 @@
xmin = new double[nDimensions];
xmax = new double[nDimensions];
int iDim = 0;
for (auto& v : hist.FindMember("nBins")->value.GetArray()) {

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nBins[iDim++] = v.GetInt();
LOG(debug) << "nBins " << iDim << ": " << nBins[iDim - 1];
}
iDim = 0;
for (auto& v : hist.FindMember("xmin")->value.GetArray()) {

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xmin[iDim++] = v.GetDouble();
LOG(debug) << "xmin " << iDim << ": " << xmin[iDim - 1];
}
iDim = 0;
for (auto& v : hist.FindMember("xmax")->value.GetArray()) {

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xmax[iDim++] = v.GetDouble();
LOG(debug) << "xmax " << iDim << ": " << xmax[iDim - 1];
}
} else {
int iDim = 0;
binLimits = new TArrayD[nDimensions];
for (auto& v : hist.FindMember("binLimits")->value.GetArray()) {

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double* lims = new double[v.GetArray().Size()];
int iElem = 0;
for (auto& lim : v.GetArray()) {

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lims[iElem++] = lim.GetDouble();
}
binLimits[iDim++] = TArrayD(v.GetArray().Size(), lims);
Expand All @@ -2386,7 +2397,7 @@
if (hist.HasMember("axLabels")) {
axLabels = new TString[hist.FindMember("axLabels")->value.GetArray().Size()];
int iDim = 0;
for (auto& v : hist.FindMember("axLabels")->value.GetArray()) {

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axLabels[iDim++] = v.GetString();
}
}
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