[PWGCF] fill trigger separately, fix FT0A-FT0C container bug (#13237)

Author: Luzhiyongg

PWGCF/TwoParticleCorrelations/Tasks/longRangeDihadronCor.cxx

@@ -279,7 +279,8 @@ struct LongRangeDihadronCor {
       registry.add("Centrality_used", hCentTitle.c_str(), {HistType::kTH1D, {{100, 0, 100}}}); // histogram to see how many events are in the same and mixed event
       registry.add("zVtx", "zVtx", {HistType::kTH1D, {axisVertex}});
       registry.add("zVtx_used", "zVtx_used", {HistType::kTH1D, {axisVertex}});
-      registry.add("Trig_hist", "", {HistType::kTHnSparseF, {{axisSample, axisVertex, axisPtTrigger}}});
+      registry.add("Trig_hist_TPC_FT0A", "", {HistType::kTHnSparseF, {{axisSample, axisVertex, axisPtTrigger}}});
+      registry.add("Trig_hist_TPC_FT0C", "", {HistType::kTHnSparseF, {{axisSample, axisVertex, axisPtTrigger}}});
       registry.add("FT0Amp", "", {HistType::kTH2F, {axisChID, axisFit}});
       registry.add("FT0AmpCorrect", "", {HistType::kTH2F, {axisChID, axisFit}});
       registry.add("FT0Cmp", "", {HistType::kTH2F, {axisChID, axisFit}});
@@ -558,7 +559,11 @@ struct LongRangeDihadronCor {
       if (!getEfficiencyCorrection(triggerWeight, track1.eta(), track1.pt(), posZ))
         continue;
       if (system == SameEvent) {
-        registry.fill(HIST("Trig_hist"), fSampleIndex, posZ, track1.pt(), eventWeight * triggerWeight);
+        if (corType == kFT0C) {
+          registry.fill(HIST("Trig_hist_TPC_FT0C"), fSampleIndex, posZ, track1.pt(), eventWeight * triggerWeight);
+        } else if (corType == kFT0A) {
+          registry.fill(HIST("Trig_hist_TPC_FT0A"), fSampleIndex, posZ, track1.pt(), eventWeight * triggerWeight);
+        }
       }
 
       std::size_t channelSize = 0;
@@ -630,10 +635,10 @@ struct LongRangeDihadronCor {
         float deltaEta = etaA - etaC;
         // fill the right sparse and histograms
         if (system == SameEvent) {
-          sameFt0aFt0c->getPairHist()->Fill(step, fSampleIndex, posZ, 0., 0., deltaPhi, deltaEta, amplA * amplC * eventWeight * triggerWeight);
+          sameFt0aFt0c->getPairHist()->Fill(step, fSampleIndex, posZ, 0.5, 0.5, deltaPhi, deltaEta, amplA * amplC * eventWeight * triggerWeight);
           registry.fill(HIST("deltaEta_deltaPhi_same_FT0A_FT0C"), deltaPhi, deltaEta, amplA * amplC * eventWeight * triggerWeight);
         } else if (system == MixedEvent) {
-          mixedFt0aFt0c->getPairHist()->Fill(step, fSampleIndex, posZ, 0., 0., deltaPhi, deltaEta, amplA * amplC * eventWeight * triggerWeight);
+          mixedFt0aFt0c->getPairHist()->Fill(step, fSampleIndex, posZ, 0.5, 0.5, deltaPhi, deltaEta, amplA * amplC * eventWeight * triggerWeight);
           registry.fill(HIST("deltaEta_deltaPhi_mixed_FT0A_FT0C"), deltaPhi, deltaEta, amplA * amplC * eventWeight * triggerWeight);
         }
       }